Series II Valves

  • Original Shear-Seal® technology
  • Air or hydraulic integrated actuator
  • 2- and 3-position
  • Superior shifting performance
  • High velocity flow
  • Compact design
  • Corrosion resistant materials
  • Position indication

Barksdale's patented Series II valve provides an optimal solution by combining the dependable features of our heavy duty Shear-Seal® valves with the reliability of a rack and pinion pilot actuator, all in one integrated package. With the ability to handle high velocity flows at pressures up to 6000 psi and tolerate contaminated media, the Series II valve becomes the choice for the toughest applications.


General Specifications*

– Main Valve
Working Pressure: Hydraulic up to 3,000 or 6,000 psi (206 bar or 413 bar)
Air up to 2,000 or 4,000 psi (138 or 276 bar)
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 (3,000 psi [206 bar])
Pressure Drop (all Valves): See supplemental guide for detailed information
Porting: 1/4”, 3/8”, 1/2”, 3/4”, 1”, & 1-1/2” NPT Standard (SAE J1926 Option)
Media Temperature Range: -40° to +250°F (-40° to +121°C)
Handle Detent: All valves have 3-position detents for manual shift to Center position
Panel Mounting: Standard for 1/4”- 1/2” valves Refer to sales drawings for 1” & 1-1/2” valves
Wetted Materials:
Rotor & Seals:
Standard O-Rings:
Al-Ni bronze
Stainless steel
400 series stainless steel
Buna N
Handle & Detent Disc:
Al-Ni Bronze
Stainless Steel
Stainless Steel
– Pilot Actuator
Working Pressure:


80 psi (5.2 bar) minimum
250 psi (17.2 bar) maximum
500 psi (34 bar) minimum
1,500 psi (103 bar) maximum
Porting: 1/4″ – 18 NPT (2)
Media Temperature Range: -40° to +250°F (-40° to +121°C
Speed of Operation: Greater than or equal to 1/2 second to avoid damage.

End Plate:


Air -Amalga (Std.)
Air -Stainless steel (Opt.)
Hydraulic – Stainless steel (Std.)

Stainless steel 1/4”, 3/8”, 1/2”
Al-Ni Bronze 3/4” 1” & 1-1/2”

Stainless steel


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