Current Industrial Reports U. S. Department of Commerce Economics and Statistics Administration Bureau of the Census Fluid Power Products, Including Aerospace - 1997 (Final Report) MA35N(97)-1 Issued February 11, 1999 Information about the scope of the survey, methodology, explanation of terms, and historical notes for this survey may be found in the introduction of the 1996 Manufacturing Profiles, issued July 1998. Obtaining reports: Current data are released electronically on Internet for all individual surveys as they beceome available. Use http://www.census.gov/econ/www/manumenu.html. Individual reports can be accessed by choosing "Current Industrial Reports (CIR's)," clicking on "Report Number Index;" from the "Industrial Products by Numeric Index," choose the survey of interest. Follow the menu to view the text (ASCII) file or PDF file or to download the worksheet file (WK format) to your personal computer. These data are also available through the U.S. Department of Commerce and STAT-USA Electronic Bulletin Board by subscription. To access, dial 202-482-3870 and follow the prompts to register. Also, you may call 202-482-1986 or 1-800-STAT-USA, further information. The Internet address is: stat-usa.gov/. For mail or fax copies of the publication, contact the Manufacturing and Construction Division Information Center, 301-457-4673. Address inquiries concerning these data to U.S. Department of Commerce, Bureau of the Census, Manufac- turing and Construction Division, Washington, DC 20233, or call Renee Coley, 301-457-4742. Summary of Findings. In 1997, fluid power product manufacturers, including aerospace, had shipments of $11,593.8 million, an increase of 10 percent from $10,530.0 reported in 1996. Hydraulic and pneumatic valves increased 10 percent to $3,226.4 million in 1997 from $2,935.0 million in 1996. Fittings and assemblies for tubing and hose, excluding plumbers' brass goods, increased 9 percent to $2,400.5 million in 1997 from $2,205.8 million in 1996. Hydraulic and pneumatic cylinders, actuators, accumulators, cushion, and nonvehicular shock absorbers increased by 9 percent to $2,999.3 million in 1997 from $2,755.7 million in 1996. Compressed air and gas dryers and lubricators increased 3 percent to $89.8 million in 1997 from $87.5 million in 1996. Filters of hydraulic and pneumatic systems increased to $528.7 million in 1997 from $474.2 million in 1996, a 12-percent increase. Hydraulic and pneumatic pumps, motors, and hydrostatic transmission components incurred a 13-percent increase to $2,349.1 million in 1997 from $2,071.8 million in 1996. Table 1. Value of Shipments of Fluid Power Products, Including Aerospace: 1997 and 1996 [Value in thousands of dollars] Product code Product description 1997 1996 Fluid power products, including aerospace. . . . . . 11,593,751 r/ 10,530,027 3492C Nonaerospace type hydraulic directional control valves. . . . . . . . . . . . . . . . . . . 543,580 486,428 3492D Nonaerospace type hydraulic valves (except directional control). . . . . . . . . . . . . . . . 865,757 741,248 3492E Nonaerospace type pneumatic directional control valves. . . . . . . . . . . . . . . . . . . 513,507 464,947 3492F Nonaerospace type pneumatic valves (except directional control). . . . . . . . . . . . 264,140 r/ 240,183 3492A Aerospace type hydraulic fluid power valves. . . . . 383,342 r/ 370,535 3492B Aerospace type pneumatic fluid power valves. . . . . 351,485 r/ 343,185 3492G Parts for fluid power valves. . . . . . . . . . . . . 304,555 r/ 288,507 3492J Nonaerospace type flared (metal) fittings and couplings for, and assemblies of tubing used in fluid power transfer systems. . . . . . . . . . . . 336,123 310,670 3492K Nonaerospace type flareless fittings and couplings, including nonmetal fittings, used in fluid power transfer systems. . . . . . . . . . . 481,120 454,820 3492M Nonaerospace type hydraulic and pneumatic fittings and couplings for hose, and manifolds. . . . . . . . . . . . . . . . . . . . 808,649 742,012 3492N Nonaerospace type hydraulic and pneumatic assemblies of hose. . . . . . . . . . . . 255,252 281,567 3492H Aerospace type hydraulic and pnuematic hose or tube end fittings and assemblies and manifolds. . . . . . . . . . . . . . . . . . . . 519,377 416,713 35694 Nonaerospace type filters for hydraulic fluid power systems. . . . . . . . . . . . . . . . . 347,900 317,953 35695 Nonaerospace type filters for pneumatic fluid power systems. . . . . . . . . . . . . . . . . 108,883 106,571 35696 Aerospace type hydraulic and pneumatic filters. . . . 71,961 49,656 35699 pt. Compressed air and gas dryers, and lubricators. . . . 89,756 87,454 35934 Nonaerospace type hydraulic fluid power cylinders and actuators, linear and rotary. . . . . 1,205,303 1,104,783 35935 Nonaerospace type pneumatic fluid power cylinders and actuators, linear and rotary. . . . . 460,644 417,801 35939 Parts for nonaerospace type hydraulic and pneumatic fluid power cylinders, actuators, and related items, n.e.c. . . . . . . . . . . . . . 278,280 r/ 263,369 35932 Aerospace type fluid power cylinders and actuators, hydraulic and pneumatic. . . . . . . . . 1,055,050 r/ 969,778 35943 Nonaerospace type reciprocating pumps. . . . . . . . 580,923 521,968 35944 Nonaerospace type rotary and other fluid power pumps. . . . . . . . . . . . . . . . . . . . . 460,498 432,652 35945 Nonaerospace type fluid power motors. . . . . . . . . 579,486 487,548 35946 Aerospace type fluid power pumps and motors. . . . . . . . . . . . . . . . . . . . . . . 264,624 r/ 233,178 35949 Parts for fluid power pumps, motors, and hydrostatic transmissions. . . . . . . . . . . . . . 463,556 396,501 n.e.c. Not elsewhere classified. pt. Part. r/Revised by 5 perent or more from previously published data. Table 2. Manufacturer's Shipments of Fluid Power Products by Type, Including Aerospace: 1997 and 1996 [Quantity in units. Value in thousands of dollars] 1997 1996 Product description No. No. Product of of code cos. Quantity Value cos. Quantity Value Fluid power products, including aerospace. . . . . . . . . . . (X) (X) 11,593,751 (X) (X) r/ 10,530,027 3492C Nonaerospace type hydraulic directional control valves. . . . . (X) 7,483,981 543,580 (X) 6,742,502 486,428 Manual: 3492C 22 3- and 4-way monoblock. . . . . . . . . . . . . . . . . . . 27 3,667,163 124,998 26 3,210,336 103,857 3492C 24 3- and 4-way sectional. . . . . . . . . . . . . . . . . . . 19 977,029 186,243 21 1,029,572 173,493 Solenoid: 3492C 26 2-way types. . . . . . . . . . . . . . . . . . . . . . . . 16 413,459 30,460 15 337,550 19,329 3492C 28 3- and 4-way types. . . . . . . . . . . . . . . . . . . . . 25 1,092,258 134,955 25 r/ 984,525 r/ 129,767 3492C 25 Other directional control. . . . . . . . . . . . . . . . . . 30 1,334,072 66,924 29 1,180,519 r/ 59,982 3492D Nonaerospace type hydraulic valves (except directional control). . . . . . . . . . . . . . . . . . . . . . . . . . . (X) 21,216,208 865,757 (X) 18,387,946 741,248 Pressure control: 3492D 31 Relief valves. . . . . . . . . . . . . . . . . . . . . . . 27 1,826,435 41,817 26 1,804,787 38,231 3492D 33 Other, including load sensing and manual types. . . . . . . 17 1,821,063 29,987 17 774,656 r/ 26,466 Flow control: 3492D 34 Manual types. . . . . . . . . . . . . . . . . . . . . . . . 21 1,185,480 27,027 22 1,077,312 r/ 26,043 3492D 35 Other flow control valves. . . . . . . . . . . . . . . . . 23 3,098,486 67,551 25 2,686,122 65,337 3492D 38 Cartridge valves (all types). . . . . . . . . . . . . . . . . 20 10,387,822 222,699 20 9,151,052 193,661 Electrohydraulic valves: 3492D 49 Pilot operated, torque motor servovalves. . . . . . . . . . 10 (D) 108,990 10 (D) 75,325 3492D 50 Other types, including proportional. . . . . . . . . . . . 11 (D) 93,253 11 (D) 62,205 3492D 48 Other nonaerospace type hydraulic valves, including stack and logic. . . . . . . . . . . . . . . . . . . . . . . . . . 26 2,426,351 274,433 26 1,891,607 r/ 253,980 3492E Nonaerospace type pneumatic directional control valves. . . . . (X) 17,663,375 513,507 (X) 15,571,304 464,947 3492E 51 Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . 38 3,866,905 77,884 40 3,775,930 74,275 Solenoid: 3492E 54 Under 1/8" port diameter. . . . . . . . . . . . . . . . . . 12 3,079,737 57,169 11 2,682,175 46,781 1/8" up to and including 1/4" port diameter: 3492E 56 3-way types. . . . . . . . . . . . . . . . . . . . . . . 24 2,617,715 61,813 24 2,238,882 55,967 3492E 57 4-way types. . . . . . . . . . . . . . . . . . . . . . . 22 2,733,507 116,204 23 2,377,875 99,245 Over 1/4" port diameter: 3492E 58 3-way types. . . . . . . . . . . . . . . . . . . . . . . 20 665,886 47,365 20 r/ 663,697 r/ 48,246 3492E 59 4-way types. . . . . . . . . . . . . . . . . . . . . . . 17 1,457,082 84,015 18 1,490,501 r/ 85,925 3492E 55 Mechanical, remote pilot and all other types . . . . . . . . 30 3,242,543 69,057 31 r/ 2,342,244 r/ 54,508 3492F Nonaerospace type pneumatic valves (except directional control). . . . . . . . . . . . . . . . . . . . . . . . . . . (X) 14,093,482 264,140 (X) r/ 13,133,412 r/ 240,183 3492F 61 Filter-regulator combination units, integral types. . . . . . 14 1,386,920 27,373 14 r/ 1,323,437 r/ 25,989 3492F 62 Other FRs and filter-regulator-lubricator combo units. . . . 15 526,703 20,794 15 r/ 434,574 r/ 17,793 3492F 64 Regulators, sold separately. . . . . . . . . . . . . . . . . 20 4,928,867 78,919 21 4,756,726 75,489 3492F 65 Flow control valves. . . . . . . . . . . . . . . . . . . . . 32 4,014,158 101,820 32 r/ 3,705,698 r/ 89,343 3492F 69 Check, shuttle, exhaust, needle and all other types. . . . . 30 3,236,834 35,234 30 r/ 2,912,977 r/ 31,569 3492A Aerospace type hydraulic fluid power valves. . . . . . . . . . (X) 1,269,378 383,342 (X) r/ 1,195,226 r/ 370,535 2-, 3-, and 4-way directional control valves: 3492A 71 Manually or mechanically operated. . . . . . . . . . . . . 17 (D) 77,729 17 (D) (D) 3492A 72 Solenoid operated. . . . . . . . . . . . . . . . . . . . . 25 75,652 54,849 25 r/ 67,917 r/ 49,875 3492A 73 Motor operated. . . . . . . . . . . . . . . . . . . . . . . 9 (D) 26,832 9 (D) (D) 3492A 74 Electrohydraulic servovalves. . . . . . . . . . . . . . . . 7 93,305 125,529 7 r/ 81,936 r/ 122,872 3492A 75 Flow, pressure, and other types of hydraulic valves. . . . . 28 382,975 98,403 26 r/ 352,031 r/ 82,586 3492B Aerospace type pneumatic fluid power valves. . . . . . . . . . (X) 1,155,250 351,485 (X) r/ 1,156,986 r/ 343,185 3492B 79 Pneumatic valves (all types). . . . . . . . . . . . . . . . . 28 1,155,250 351,485 25 r/ 1,156,986 r/ 343,185 3492G Parts for fluid power valves. . . . . . . . . . . . . . . . . . (X) (X) 304,555 (X) (X) r/ 288,507 3492G 96 Parts for nonaerospace type hydraulic and pneumatic valves, sold separately. . . . . . . . . . . . . . . . . . . . . . . 60 (X) 209,281 62 (X) r/ 198,833 3492G 98 Parts for aerospace type hydraulic and pneumatic valves, sold separately. . . . . . . . . . . . . . . . . . . . . . . 23 (X) 95,274 22 (X) r/ 89,674 3492J Nonaerospace type flared (metal) fittings and couplings for, and assemblies of tubing used in fluid power transfer systems. . . . . . . . . . . . . . . . . . . . . . . . . . . . (X) (X) 336,123 (X) (X) 310,670 Flared fittings: 3492J 11 Brass and bronze (SAE 45 degrees and 37 degrees). . . . . . 9 (X) (D) 9 (X) (D) 3492J 13 Carbon steel (JIC 37 degrees). . . . . . . . . . . . . . . 12 (X) 139,476 13 (X) 136,414 3492J 15 Other, including alloy steel. . . . . . . . . . . . . . . . 14 (X) 60,966 15 (X) 57,268 3492J 41 Assemblies of tubing. . . . . . . . . . . . . . . . . . . . . 7 (X) (D) 7 (X) (D) 3492J 42 Assemblies of tubing and hose. . . . . . . . . . . . . . . . 7 (X) 46,475 7 (X) 41,539 3492K Nonaerospace type flareless fittings and couplings, including nonmetal fittings, used in fluid power transfer systems. . . . (X) (X) 481,120 (X) (X) 454,820 Metal types: 3492K 21 Brass and bronze. . . . . . . . . . . . . . . . . . . . . . 16 (X) 90,977 16 (X) (D) 3492K 23 Carbon steel. . . . . . . . . . . . . . . . . . . . . . . . 13 (X) 88,800 13 (X) r/ 71,030 3492K 24 Stainless steel. . . . . . . . . . . . . . . . . . . . . . 15 (X) 290,408 16 (X) r/ 276,656 3492K 28 Other, including alloy steel. . . . . . . . . . . . . . . . 8 (X) 7,498 9 (X) (D) 3492K 38 Nonmetal fittings, including plastic. . . . . . . . . . . . . 9 (X) 3,437 10 (X) 8,842 3492M Nonaerospace type hydraulic and pneumatic fittings and couplings for hose, and manifolds. . . . . . . . . . . . . . . (X) (X) 808,649 (X) (X) 742,012 3492M 44 Permanent hose end fittings (crimped and swaged). . . . . . . 19 (X) 327,165 21 (X) 298,582 3492M 46 Hydraulic and pneumatic reusable end fittings. . . . . . . . 28 (X) 131,376 28 (X) 117,083 3492M 47 Hydraulic quick connect and disconnect couplings. . . . . . . 18 (X) 152,523 18 (X) r/ 148,606 3492M 48 Pneumatic quick connect and disconnect couplings. . . . . . . 23 (X) 80,966 23 (X) 68,450 3492M 49 Manifolds and manifold assemblies for fluid power systems. . 22 (X) 75,700 21 (X) 66,580 3492M 50 All other, including steel adaptor, swivel, rotating, and extension fittings. . . . . . . . . . . . . . . . . . . . . 24 (X) 40,919 23 (X) 42,711 3492N Nonaerospace type hydraulic and pneumatic assemblies of hose. . . . . . . . . . . . . . . . . . . . . . . . . . . . . (X) (X) 255,252 (X) (X) 281,567 3492N 51 Assemblies with permanent end fittings. . . . . . . . . . . . 21 (X) 213,582 23 (X) 241,494 3492N 53 Assemblies with reusable end fittings. . . . . . . . . . . . 8 (X) 41,670 11 (X) 40,073 3492H Aerospace type hydraulic and pneumatic hose or tube end fittings and assemblies and manifolds. . . . . . . . . . . . . (X) (X) 519,377 (X) (X) 416,713 3492H 61 Assemblies of hose and/or tubing. . . . . . . . . . . . . . . 13 (X) 151,938 13 (X) r/ 120,247 3492H 62 Quick connect, rotating, swivel, and extension fittings. . . 10 (X) 152,000 10 (X) r/ 126,551 3492H 63 Manifolds for aerospace hydraulic systems. . . . . . . . . . 6 (X) 45,059 6 (X) r/ 33,132 3492H 69 Aerospace hose and tube fittings, n.e.c. . . . . . . . . . . 14 (X) 170,380 14 (X) 136,783 35694 Nonaerospace type filters for hydraulic fluid power systems. . (X) (X) 347,900 (X) (X) 317,953 Hydraulic fluid filter assemblies, with or without filter element installed: 35694 11 Low pressure (below 301 psi). . . . . . . . . . . . . . . . 27 1,108,625 53,030 28 r/ 1,001,825 48,632 35694 12 Medium pressure (301 - 2,999 psi). . . . . . . . . . . . . 17 847,824 27,972 18 743,294 r/ 24,040 35694 14 High pressure (3,000 psi and above). . . . . . . . . . . . 13 138,116 21,575 14 128,035 19,474 Filter replacement elements: 35694 15 Reusable (cleanable) type. . . . . . . . . . . . . . . . . 15 1,185,096 20,592 17 r/ 1,529,693 r/ 22,469 35694 17 Nonreusable type. . . . . . . . . . . . . . . . . . . . . . 24 17,840,588 192,203 26 17,351,309 170,305 35694 19 Strainers and separators, filter parts, and accessories. . 21 (X) 32,528 21 (X) 33,033 35695 Nonaerospace type filters for pneumatic fluid power systems. . (X) (X) 108,883 (X) (X) 106,571 Air supply filter assemblies and filter replacement elements, excluding those shipped as part of a FR or FRL combo unit: 35695 32 Coalescing types, including elements sold separately. . . . 14 (X) 44,791 14 (X) 42,341 35695 34 Other types, including elements sold separately . . . . . . 13 (X) 35,566 12 (X) r/ 33,246 35695 39 Air exhaust mufflers, diffusers, filter parts and air preparation accessories. . . . . . . . . . . . . . . . . . 17 (X) 28,526 18 (X) r/ 30,984 35696 Aerospace type hydraulic and pneumatic filters. . . . . . . . . (X) (X) 71,961 (X) (X) 49,656 35696 51 Hydraulic. . . . . . . . . . . . . . . . . . . . . . . . . . 6 (X) (D) 6 (X) (D) 35696 53 Pneumatic. . . . . . . . . . . . . . . . . . . . . . . . . . 3 (X) (D) 3 (X) (D) 35699 pt. Compressed air and gas dryers, and lubricators. . . . . . . . . (X) 796,268 89,756 (X) r/ 780,547 87,454 Compressed air and gas dryers: 35699 41 Refrigerated dryers. . . . . . . . . . . . . . . . . . . . 5 32,009 37,357 5 29,428 35,294 35699 42 Dessicant dryers. . . . . . . . . . . . . . . . . . . . . . 7 (D) 31,184 7 (D) (D) 35699 44 Other compressed air and gas dryers. . . . . . . . . . . . 4 (D) 5,721 4 (D) (D) 35699 13 Lubricators for pneumatic systems, sold separately. . . . . . 8 684,153 15,494 8 r/ 634,105 r/ 14,540 35934 Nonaerospace type hydraulic fluid power cylinders and actuators, linear and rotary. . . . . . . . . . . . . . . . . (X) 4,525,809 1,205,303 (X) r/ 4,122,565 1,104,783 Hydraulic cylinders, excluding electrohydraulic: Tie-rod types: Standard NFPA and JIC tie-rod types: 35934 04 Less than 1500 psi. . . . . . . . . . . . . . . . . . . 22 157,427 39,704 22 179,830 42,173 35934 06 1500 to 3000 psi. . . . . . . . . . . . . . . . . . . . 20 228,809 94,171 20 244,254 88,975 35934 08 Greater than 3000 psi. . . . . . . . . . . . . . . . . 7 (D) (D) 8 (D) (D) 35934 10 Other tie-rod types. . . . . . . . . . . . . . . . . . . 18 (D) (D) 18 (D) (D) 35934 12 Threaded/weld fused combination. . . . . . . . . . . . . . . 49 2,801,664 749,553 51 r/ 2,536,817 r/ 620,233 35934 13 Telescoping. . . . . . . . . . . . . . . . . . . . . . . . . 20 109,634 99,070 22 r/ 105,564 96,477 35934 15 Mill type. . . . . . . . . . . . . . . . . . . . . . . . . . 13 23,873 20,139 13 r/ 24,603 r/ 18,187 35934 16 Other, including those threaded at both ends. . . . . . . . . 23 640,260 66,218 22 523,908 115,681 35934 18 Electrohydraulic types. . . . . . . . . . . . . . . . . . . . 8 5,888 19,376 7 r/ 5,586 r/ 16,230 35934 25 Hydraulic rotary actuators. . . . . . . . . . . . . . . . . . 14 59,949 53,946 14 r/ 55,402 r/ 46,670 35935 Nonaerospace type pneumatic fluid power cylinders and actuators, linear and rotary. . . . . . . . . . . . . . . . . (X) 6,766,388 460,644 (X) 6,202,537 417,801 NFPA interchangeable cylinders: 35935 23 Steel. . . . . . . . . . . . . . . . . . . . . . . . . . . 17 272,589 77,115 17 266,594 71,502 Aluminum: 35935 24 Less than 1 and 1/2" bore size. . . . . . . . . . . . . . 6 55,563 5,529 7 53,237 4,290 35935 25 1 and 1/2" bore size and over. . . . . . . . . . . . . . 21 344,500 54,209 23 r/ 344,055 r/ 46,036 35935 27 Rodless cylinders. . . . . . . . . . . . . . . . . . . . . . 12 119,819 39,623 12 120,337 36,968 Other pneumatic cylinders: 35935 28 Less than 1 and 1/2" bore size. . . . . . . . . . . . . . . 26 4,266,060 147,085 27 3,927,653 133,898 35935 29 1 and 1/2" bore size and over. . . . . . . . . . . . . . . 35 1,608,331 110,400 34 1,389,896 96,807 35935 26 Pneumatic rotary actuators. . . . . . . . . . . . . . . . . . 15 99,526 26,683 16 r/ 100,765 28,300 35939 Parts for nonaerospace type hydraulic and pneumatic fluid power cylinders, actuators, and related items, n.e.c. . . . . (X) (X) 278,280 (X) (X) r/ 263,369 35939 31 Accumulators (bladder, piston, and other types). . . . . . . 23 216,170 43,752 23 242,523 46,843 35939 34 Shock absorbers, not for vehicle suspension, and cushions (hydraulic and pneumatic). . . . . . . . . . . . . . . . . . 17 2,738,874 69,840 15 r/ 2,076,563 r/ 62,117 35939 36 Reservoirs, intensifiers, and other devices for fluid energy absorption and/or storage. . . . . . . . . . . . . . . . . . 11 13,252 2,429 11 r/ 13,182 r/ 2,267 35939 96 Parts for nonaerospace type hydraulic and pneumatic cylinders, actuators, accumulators, cushions, and nonvehicular shock absorbers, sold separately. . . . . . . . 57 (X) 162,259 61 (X) r/ 152,142 35932 Aerospace type fluid power cylinders and actuators, hydraulic and pneumatic. . . . . . . . . . . . . . . . . . . . (X) (X) 1,055,050 (X) (X) r/ 969,778 Hydraulic servo-actuator assemblies (linear and rotary): 35932 51 Mechanical input. . . . . . . . . . . . . . . . . . . . . . 6 28,649 200,312 6 r/ 24,699 169,304 35932 52 Electrical input. . . . . . . . . . . . . . . . . . . . . . 7 18,168 293,500 7 r/ 16,889 r/ 269,433 35932 55 Combination input. . . . . . . . . . . . . . . . . . . . . 4 (D) (D) 4 (D) (D) Hydraulic utility actuators: 35932 61 Linear actuators (cylinders). . . . . . . . . . . . . . . . 9 21,411 100,917 9 r/ 19,141 r/ 78,209 35932 62 Rotary actuators (limited rotation). . . . . . . . . . . . 2 (D) (D) 2 (D) (D) 35932 71 Shock absorbers, snubbers, and cushions (all types), excluding oleo strut assemblies. . . . . . . . . . . . . . . 8 (D) 22,673 9 (D) r/ 21,556 35932 72 Pneumatic actuators (linear and rotary). . . . . . . . . . . 8 (D) (D) 7 (D) (D) 35932 73 Accumulators (bladder, piston, and other types). . . . . . . 11 10,729 8,482 10 r/ 7,414 r/ 6,298 35932 74 Reservoirs, intensifiers, and other devices for fluid energy absorption and/or storage. . . . . . . . . . . . . . . . . . 6 1,457 9,131 6 r/ 1,374 r/ 8,007 35932 79 Other aerospace type fluid power cylinders, rotary actuators, cushions and related items, n.e.c. . . . . . . . . . . . . . 4 (X) (D) 4 (X) (D) 35939 98 Parts for aerospace type hydraulic and pneumatic cylinders, actuators, accumulators, cushions, and related items, sold separately. . . . . . . . . . . . . . . . . . . . . . . . . 13 (X) 21,603 12 (X) r/ 46,885 35943 Nonaerospace type reciprocating pumps. . . . . . . . . . . . . (X) 1,894,152 580,923 (X) r/ 1,615,541 521,968 Axial piston: Variable displacement types: 35943 15 Closed loop. . . . . . . . . . . . . . . . . . . . . . . 9 1,230,266 366,833 9 1,049,656 334,037 35943 27 Open loop. . . . . . . . . . . . . . . . . . . . . . . . 11 292,585 140,958 11 r/ 276,372 r/ 130,633 35943 37 Fixed displacement types. . . . . . . . . . . . . . . . . . 9 (D) 66,297 9 (D) r/ 50,853 35943 36 Radial piston types. . . . . . . . . . . . . . . . . . . . . 4 (D) 6,835 4 (D) 6,445 35944 Nonaerospace type rotary and other fluid power pumps. . . . . . (X) 3,075,625 460,498 (X) 2,873,749 432,652 Gear type: 35944 30 Internal, including gerotors. . . . . . . . . . . . . . . . 11 990,342 97,293 13 930,927 87,295 35944 34 External type. . . . . . . . . . . . . . . . . . . . . . . 17 1,703,786 256,477 17 r/ 1,572,556 244,139 35944 38 Vane type. . . . . . . . . . . . . . . . . . . . . . . . . . 9 381,497 106,728 9 370,266 101,218 35945 Nonaerospace type fluid power motors. . . . . . . . . . . . . . (X) (X) 579,486 (X) (X) 487,548 35945 40 Pneumatic (air) motors. . . . . . . . . . . . . . . . . . . . 4 (D) (D) 5 (D) (D) Hydraulic motors: Gear type: 35945 52 Internal, excluding gerotor types. . . . . . . . . . . . 7 (D) (D) 7 (D) (D) 35945 56 Gerotor types. . . . . . . . . . . . . . . . . . . . . . 6 1,232,417 189,582 6 r/ 1,059,379 r/ 157,537 35945 54 External. . . . . . . . . . . . . . . . . . . . . . . . . 8 166,272 26,107 8 158,746 23,960 35945 42 Vane types, fixed and variable. . . . . . . . . . . . . . . 7 13,479 13,987 7 r/ 12,556 r/ 12,553 35945 43 Radial piston types, fixed and variable. . . . . . . . . . 2 (D) (D) 2 (D) (D) Axial piston types: 35945 44 Fixed displacement. . . . . . . . . . . . . . . . . . . . 8 646,537 92,213 8 520,347 r/ 79,276 35945 45 Variable displacement. . . . . . . . . . . . . . . . . . 8 130,479 73,489 7 97,727 53,721 35945 50 Prime movers shipped with pumps or sold separately. . . . . . 6 (X) (D) 6 (X) (D) 35946 Aerospace type fluid power pumps and motors. . . . . . . . . . (X) 115,112 264,624 (X) r/ 107,967 r/ 233,178 Hydraulic pumps: 35946 71 Fixed and variable displacement types. . . . . . . . . . . 10 39,983 142,932 10 r/ 33,813 r/ 116,119 35946 72 Pump/electric motor assemblies, fixed and variable displacement types. . . . . . . . . . . . . . . . . . . . 10 31,658 (D) 11 r/ 33,453 (D) 35946 73 Other pump packages, n.e.c. . . . . . . . . . . . . . . . . 8 39,124 12,602 8 37,591 12,818 Motors: 35946 83 Pneumatic (air) motors and motor packages. . . . . . . . . - - - - - - 35946 86 Hydraulic motors, fixed and variable displacement types. . 3 (D) (D) 3 (D) (D) 35946 87 Hydraulic motor packages, including motor/gearbox, motor/valve, motor/generator, and similar combination units 4 (D) 8,507 4 (D) 5,546 35949 Parts for fluid power pumps, motors, and hydrostatic transmissions. . . . . . . . . . . . . . . . . . . . . . . . . (X) (X) 463,556 (X) (X) 396,501 Hydraulic: 35949 91 Nonaerospace. . . . . . . . . . . . . . . . . . . . . . . . 31 (X) 386,791 32 (X) r/ 340,751 35949 93 Aerospace. . . . . . . . . . . . . . . . . . . . . . . . . 8 (X) 69,492 8 (X) r/ 51,945 Pneumatic: 35949 95 Nonaerospace. . . . . . . . . . . . . . . . . . . . . . . . 1 (X) (D) 3 (X) (D) 35949 97 Aerospace. . . . . . . . . . . . . . . . . . . . . . . . . 2 (X) (D) 2 (X) (D) - Represents zero. D Withheld to avoid disclosing data for individual companies. n.e.c. Not elsewhere classified. pt. Part. r/Revised by 5 percent or more from previously published data. X Not applicable. Table 3. Shipments, Exports, and Imports of Fluid Power Products: 1997 [Quantity in units. Value in thousands of dollars] Manufacturers' Export Import shipments shipments 1/ shipments 2/ Product Product description code Quantity Value Quantity Value Quantity Value 3492A, Hydraulic fluid power valves. . . . . . . . . . . . . . . . . 29,969,567 1,792,679 2,493,564 171,426 7,861,093 125,582 3492C, 3492D 3492B, Pneumatic fluid power valves. . . . . . . . . . . . . . . . . 32,912,107 1,129,132 2,224,120 92,616 17,476,864 109,544 3492E, 3492F 3492G Parts for fluid power valves: hydraulic, pneumatic, and whether or not aerospace. . . . . . . . . . . . . . . . . . . (X) 304,555 (X) 70,511 (X) 82,064 35932 pt., Hydraulic cylinders and hydraulic linear actuators 35934 pt. (except electrohydraulic types). . . . . . . . . . . . . . . 4,487,271 1,252,274 348,230 93,008 880,184 163,065 35935 pt. Pneumatic cylinders, tie-rod types. . . . . . . . . . . . . . 672,652 136,853 633 1,031 22,050 2,447 35935 pt. Pneumatic cylinders, (except tie-rod types). . . . . . . . . . 5,994,210 297,108 410,375 31,662 321,525 25,468 35932 pt., Fluid power accumulators, hydraulic and pneumatic, and other 35934 pt., hydraulic, pneumatic or combination devices for fluid energy 35935 pt. absorption and/or storage, whether or not aerospace. . . . . 536,959 274,814 134,830 98,314 270,045 57,875 35945 pt. Pneumatic (air) motors and motor packages, whether or not aerospace. . . . . . . . . . . . . . . . . . . (D) (D) 42,674 14,647 13,771 1,458 35945 pt., Hydraulic motors, whether or not aerospace. . . . . . . . . . 3,069,538 528,703 110,014 34,682 179,241 134,955 35946 pt. 35943, Hydraulic pumps, whether or not aerospace. . . . . . . . . . . 5,009,760 1,184,353 3,330,245 280,650 2,475,166 251,388 35944 pt., 35946 pt. 35939 pt., Parts for fluid power pumps and motors. . . . . . . . . . . . (X) 1,272,418 (X) 307,874 (X) 249,754 35949 D Withheld to avoid disclosing data for individual companies. pt. Part. X Not applicable. 1/Source: Bureau of the Census report, EM 545, U.S. Exports. 2/Source: Bureau of the Census report, IM 145, U.S. Imports for Consumption. Table 4. Comparison of Standard Industrial Classification-Based Product Codes with Schedule B Export Numbers, and HTSUSA Numbers: 1997 Product Export Import code Product description number 1/ number 2/ 3492A, Hydraulic fluid power valves. . . . . . . . . . . . . . . . . 8481.10.0020 8481.10.0020 3492C, 8481.20.0010 8481.20.0010 3492D 8481.20.0020 8481.20.0020 8481.20.0030 8481.20.0030 8481.20.0040 8481.20.0040 8481.20.0050 8481.20.0050 3492B, Pneumatic fluid power valves. . . . . . . . . . . . . . . . . 8481.10.0040 8481.10.0040 3492E, 8481.10.0060 8481.10.0060 3492F 8481.20.0060 8481.20.0060 8481.20.0070 8481.20.0070 8481.20.0080 8481.20.0080 3492G Parts for fluid power valves: hydraulic, pneumatic, and whether or not aerospace. . . . . . . . . . . . . . . . . . . 8481.90.9010 8481.90.9020 8481.90.9040 35932 pt., Hydraulic cylinders and hydraulic linear actuators 35934 pt. (except electrohydraulic types). . . . . . . . . . . . . . . 8412.21.0015 8412.21.0015 8412.21.0030 8412.21.0030 8412.21.0045 8412.21.0045 8412.21.0060 8412.21.0060 8412.21.0075 8412.21.0075 35935 pt. Pneumatic cylinders, tie-rod types. . . . . . . . . . . . . . 8412.31.0040 8412.31.0040 35935 pt. Pneumatic cylinders (except tie-rod types). . . . . . . . . . 8412.31.0080 8412.31.0080 35932 pt., Fluid power accumulators, hydraulic and pneumatic, and other 35934 pt., hydraulic, pneumatic or combination devices for fluid energy 35935 pt. absorption and/or storage, whether or not aerospace. . . . . 8412.29.8075 8412.29.8075 8412.39.0080 8412.39.0080 8479.89.9065 8479.89.9065 8479.89.9565 8479.89.9565 35945 pt. Pneumatic (air) motors and motor packages, whether or not aerospace. . . . . . . . . . . . . . . . . . . 8412.39.0040 8412.39.0040 35945 pt., Hydraulic motors, whether or not aerospace. . . . . . . . . . 8412.29.8015 8412.29.8015 35946 pt. 8412.29.8030 8412.29.8030 8412.29.8045 8412.29.8045 8412.29.8060 8412.29.8060 35943, Hydraulic pumps, whether or not aerospace. . . . . . . . . . . 8413.50.0070 8413.50.0070 35944 pt., 8413.50.0080 8413.50.0080 35946 pt. 8413.60.0020 8413.60.0020 8413.60.0030 8413.60.0030 8413.60.0040 8413.60.0040 35939 pt., Parts for fluid power pumps and motors. . . . . . . . . . . . 8412.90.9005 8412.90.9005 35949 8412.90.9015 8412.90.9015 8412.90.9025 8412.90.9025 8412.90.9035 8412.90.9035 8413.91.9050 8413.91.9050 pt. Part. 1/Source: 1997 edition, Harmonized System-Based Schedule B, Statistical Classification of Domestic and Foreign Commodities Exported from the United States. 2/Source: Harmonized Tariff Schedule of the United States, Annotated (1997).