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The ShearFlo® SV-25 directional control valve ensures negligible internal leakage and contaminant resistant operation for 1/4” piping. Its modular design allows for various operator and porting options to suit numerous high-pressure, critical service applications.

The SVX valve with integral actuator* is recommended for reliable remote and long-term cost saving applications in need of a compact footprint. The SVX shares all the benefits and replaceable ShearFlo® sealing components as the SV valve but is integrated with a rack and pinion style actuator with double-acting pistons. Actuation type may be configured for air or hydraulic that is direct or solenoid piloted in 2 or 3 positions or spring centered. For remotely operated hydraulic control systems demanding a small footprint with minimal labor, the patented PacSeal integral control valve manifold can easily be fitted with the SVX.

Can’t decide which valve actuator is best for your application? Then, please check out our blog that compares the SVX to the conventional bracket mounted cylinder actuators.

*USA Patent #9587454



Port Size 1/4 in. NPT or SAE ORB
Working Pressure (Liquid) 3000 or 6000 psi
Working Pressure (Gas) 2000 or 4000 psi
Return Port Pressure 250 psi (Max)1
Proof Pressure 1.5X Working pressure
Burst Pressure 2X Working Pressure
Cv .95
Rated Flow 10 GPM
Temperature Rating -40 to 250°F
Fluid Media Hydraulic Oil or Lubricated Water2
ShearFlo® Sealing Components Hardened Stainless Steel2
Shaft Stainless Steel
Body Stainless Steel
Housing Carbon Steel
Handle, Detent Disc, Spacers and Hardware Plated Carbon Steel
O-rings Buna-N, Viton or EPR
Backup Rings Teflon
1Full rated return port pressure is possible with All Blocked Rotor.

2For water-based media, special alloy seal rings may be required for optimum performance and durability. Contact PacSeal Hydraulics at (714) 529-9495 for details.

Model Configurator and Ordering Instructions

Use the below configurator to create a model number for an SV-25 Directional Control Valve (i.e. 3000 psi rated, 1/4” NPT Inline Ported, Selector Rotor SV-25 with 2-position 90° integral air actuator is SVX25-2N3IS1ASN). To receive pricing, simply call PacSeal or use our Request a Quote tool.

Detailed information regarding each option is shown in SV-25 Valve SpecificationsFor repair kits and other accessories, see links below.

*Common Part Numbers for Reference
Part No. Basic Description Model No.
40-1529 Selector 3 Pos., Inline Ported, 1/4 NPT, 3000 psi rated, Manual SV25-2N3ISS1MN
40-3358-PM Selector 3 Pos., Bottom Ported, 1/4 NPT, 6000 psi rated, Manual, Panel Mount SV25-2N6BPS1MN
40-4057 Selector 3 Pos., Inline Ported, 1/4 NPT, 3000 psi rated, Spring Centered SV25-2N3ISS1SN
40-1790 Manipulator 3 Pos., Inline Ported, 1/4 NPT, 3000 psi rated, Manual SV25-2N3ISM1MN
40-1780 Bypass 2 Pos., Inline Ported, 1/4 NPT, 3000 psi rated, Manual SV25-2N3ISB2MN
40-1981 Open Center 3 Pos., Inline Ported, 1/4 NPT, 3000 psi rated, Manual SV25-2N3ISO1MN
*Note: These part numbers are the most commonly purchased and are displayed for reference only. Other models may be configured as requested.


PacSeal Hydraulics

Install Pac Seal Hydraulics

Install this application on your home screen for quick and easy access when you’re on the go.

Just tap then “Add to Home Screen”