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Barksdale 518, 526 Series Microtorque® Valve

BRAND : Barksdale

Barksdale's Microtorque® valve provides superior directional control for fluid power applications up to 6,000 psi where compact design and virtually zero leakage* are a must. Utilizing Barksdale's Shear-Seal® technology, the Microtorque® valve offers reliable performance and lapped metal-to-metal sealing surfaces that will easily tolerate contaminated fluids. This valve offers many options that make it extremely versatile including panel mounting, spring return, 2 or 3 position detents, DO3 manifold mounting, and non-interflow. Leveraging the flexibility and unique features of the Microtorque®

Details

Barksdale's Microtorque® valve provides superior directional control for fluid power applications up to 6,000 psi where compact design and virtually zero leakage* are a must. Utilizing Barksdale's Shear-Seal® technology, the Microtorque® valve offers reliable performance and lapped metal-to-metal sealing surfaces that will easily tolerate contaminated fluids. This valve offers many options that make it extremely versatile including panel mounting, spring return, 2 or 3 position detents, DO3 manifold mounting, and non-interflow. Leveraging the flexibility and unique features of the Microtorque® valve, along with its superior performance, can result in bottom line savings and operational benefits for your customers.

General Specifications*

Media:Hydraulic oil
Working Pressure:6,000 psi (415 bar) **
Flow Capacity, Cv:See table
Back Pressure:Must not exceed 250 psi (17.2 bar)*** at return port for satisfactory operation
Proof Pressure:1-1/2 times working pressure except at return port
Burst Pressure:2-1/2 times working pressure except at return port
Media Temperature Range:-40° to +250°F (-40° to +121°C)
Porting:1/4” NPT, SAE for 1/4” tubing, or DO3 pattern for manifold mounting
Mounting:Panel mountable with p/n 22357 mounting nut (-P option) DO3 Manifold mounting shipped with (4) #10-24 screws and O-Rings
Handle Rotation:90°; 45° each side of center position
Detent:
2-position:
3-position:

Detent at 90° positions
Detents at center and 2 extreme positions
Optional Spring Return:Available to center or either shifted position 5,000 psi (345 bar) max working pressure on spring return option
Body & Housing:Anodized aluminum
Shaft, Rotor, Pressure Seals:400 series stainless steel
Standard O-Rings:Buna N, others available
Back-up Rings:Tefl on
Bearings:Hardened steel
Shipping Weight:.95 lbs

Flow Capacity Table

Flow Capacity (Approx.)
20 ft/sec
(6.1 m/s)
gpm (l/min)
40 ft/sec
(12.2 m/s)
gpm (l/min)
Min. Flow
Passage Dia.
Cv
Factor
518 Series Interflow1.4 (5.6)2.8 (11)0.17 "0.4
526 Series
Non-Interflow
0.36 (1.4)0.72 (2.7)0.086 "0.09


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