Series L20415

  • Original Shear-Seal® technology
  • Self adjusting
  • High flow capacity
  • Large regulated pressure range
  • Tolerates contaminated media
  • Fail-safe motor control options
  • Self venting

Barksdale's pressure regulators are sensitive pressure-control devices used to maintain a pre-determined pressure in a hydraulic circuit. The regulated output pressure can be controlled either by the force of a spring, or a motor (hydraulic or pneumatic). Design features ensure excellent accuracy, repeatability and high flow coefficients.

Designed to provide years of trouble-free operation and virtually zero leakage, the Shear-Seal® design uses fluid pressure to maintain a leak-free metal-to-metal seal that improves with use. The shearing action between the rotor & pressure seal continually laps the mating surfaces and prevents contaminates from lodging between the sealing surfaces. The result is a valve that doesn’t wear out – but wears in over time, providing you superior control consistently through the entire life of the product.


General Specifications*

Supply/Inlet Pressures:

Regulated Pressure Range at 3,000 psi Supply Pressure:
High Sensitivity:
Full Range:

Regulated Pressure Range at 5,000 psi Supply Pressure:
High Sensitivity:
Full Range:

Ambient Temperature Range:

Inlet Proof Pressure:

Case Proof Pressure:

3,000 psi (207 bar)
5,000 psi (345 bar)

300 – 1600 psi (21 -110 bar)
300 – 2800 psi (21- 193 bar)

500 – 1600 psi (34 -110 bar)
500 – 3000 psi (34 – 207 bar)

-30° to +185°F (-34° to +85°C)

7,500 psi (517 bar)

4,500 psi (310 bar)

Flow Rate:
Cv Inlet:
Cv Vent:
70 GPM (@ 50 ft/s)
Outlet (regulated):
1” NPT Standard, SAE Optional
1” NPT Standard, SAE Optional
1/2” NPT Standard, SAE Optional
Materials of Construction:
Body, Flanges, & Spring Housing:
Slide, Inlet, Vent, & Blocking Plates:
O’ring Material:
Backup Ring Material:
Phosphate coated carbon steel/ductile iron
400 Series stainless steel
Plated alloy steel, 300 series stainless steel
Buna N
Pneumatic Pilot Motor (“F” prefix):
Pilot Motor Working Pressure:
Porting A & B:
Operating Temperature Range:
80 – 120 psi (5.5 – 8.3 bar)
1/4” NPT
-30° to +185°F (-34° to +85°C)
Hydraulic Pilot Motor (“G” prefix):
Pilot Motor Working Pressure:
Porting A & B:
Operating Temperature Rating:
400 – 1600 psi (6.9 – 110 bar)
SAE for 3/8” Tube (Size -6)
-30° to +185°F (-34° to +85°C)
Approximate Shipping Weight:
Manual Unit:
Pneumatic Motor Unit:
Hydraulic Motor Unit:
50 lbs. (22.6 kg)
73 lbs. (34 kg)
70 lbs. (31.8 kg)
* See product configurator for additional options.


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