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.
Specifications
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: Body: Shaft: Rotor & Seals: Standard O-Rings: |
Al-Ni bronze Stainless steel 400 series stainless steel Buna N |
| External: Housing: Hardware: Handle & Detent Disc: |
Al-Ni Bronze Stainless Steel Stainless Steel |
| – Pilot Actuator | |
| Working Pressure: Air: Hydraulic: |
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. |
| Materials: Cylinder: End Plate: Hardware: |
Air -Amalga (Std.) Air -Stainless steel (Opt.) Hydraulic – Stainless steel (Std.) Stainless steel 1/4”, 3/8”, 1/2” Stainless steel |
| * See product configurator for additional options. | |
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