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Drilling Rig Air Valves for MMO (Marine, Mobile & Oil Field)
Emerson Aventics (WABCO) Drilling Rig Air Valves
Aventics PowerMaster® Valve, 4-Way Directional Control
Rexroth PowerMaster® Single Solenoid Tapped Exhaust Valves (4 Way, 2 Position - 1/4" - 3/4" NPTF)
Item # R431008589
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Item # R431008589, Rexroth PowerMaster® Single Solenoid Tapped Exhaust Valves (4 Way, 2 Position - 1/4" - 3/4" NPTF)
4 Way / 2 & 3 Position 1/4" - 1-1/4" NPTF Solenoid, Air Pilot & Mechanical Operators
1/4", 3/8", 1/2", 3/4", 1", 1-1/4" NPTF
Maximum valve inlet air pressure: 150 psi (10.3 bar)
Minimum air pilot pressure: 15 psi (1.0 bar) w/o return spring (all sizes)
30 psi (2.1 bar) 1" and 1-1/4" valves w/return spring
40 psi (2.8 bar) 1/2" and 3/4" valves w/return spring
50 psi (3.4 bar) 1/4" and 3/8" valves w/return spring
Valves can also be used for vacuum or dual pressure service when externally piloted.
2.39 (2390 Nl/min) 1/4" NPTF
3.73 (3730 Nl/min) 3/8" NPTF
6.17 (6170 Nl/min) 1/2" NPTF
7.88 (7880 Nl/min) 3/4" NPTF
13.61 (13,610 Nl/min) 1" NPTF
15.75 (15,750 Nl/min) 1-1/4" NPTF
-20ºF to +160ºF (-29ºC to 71ºC)
Air and inert gases (In service higher than 18 cycles per minute or with continuous air flow, a lubricator is recommended.)
Bodies and operators: Die cast aluminum
Spool: Machined from high-tensile aluminum, hard anodized, ground & polished to 8 micro-inch finish
Seals: Buna-N, oil-resistant, and bonded to a metallic ring (Hl-Nitrile Buna-N seals are also available.
Other coil voltages are available - selection will be done at checkout.
External Air Pilot
110 VAC@50 Hz
120 VAC@60 Hz
220 VAC@50 Hz
240 VAC@60 Hz
480 VAC@60 Hz
(all coils are rated for continues duty)
120, 240 VAC 60 Hz
12, 24 VDC
Actual test data shows only 175 milliseconds is required to fill a 250 cubic inch volume to 80% of line pressure with a normally closed solenoid operated valve. Where a spring is used to open the valve (normally open valve) only 253 milliseconds is required to fill the same volume.
Won’t burn out...even when energized for extended periods. Pilot operated for fast response.
Lightweight aluminum spool
of extra large diameter assures high-speed performance. Requires only short movement to deliver high-capacity air flow. File-hard anodized surface, polished to an 8 micro-inch finish, withstands wear and abrasion; offers greatest sealing qualities, minimum friction and maximum speed. Spool is balanced so air pressure won’t affect its position.
Low-friction, positive sealing ring
is actually two seals in one; an outer static seal and an inner dynamic seal bonded to a metallic spacer ring. The ring protects the inner seal from the radical compression absorbed by the other seal. Assures longest life with positive sealing.
keep inner and outer sealing surfaces in precise position for maximum reliability and efficiency. Combined with the non-compressible seal rings, Power- Master valve retainers eliminate tolerance build-up in the free stack height of both retainers and seals.
with extra large surface area means faster response at lower pressures.
Manual non-locking overrides
allow supplementary manual control an permits operating the valve when the electric power is off.
allows an independent air supply to be connected to the pilot port in the valve operator or subplate for air pilot pressure.
of 24" allows simplified conduit wiring.
Solenoid coil removal.
Unscrew hex nut and slip off the solenoid housing and coil.
can be used in either or both exhaust port to provide speed control of cylinders. (Refer to Accessory Valve catalog SC-400.)
Powermaster Repair Kits
Aventics PowerMaster® Repair Kits
Distributor to Industry, Inc. 1017 East Murdock Street Wichita, Kansas 67214
Ph: 316.263.9511 Toll-free: 800.835.2838
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