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ShearFlo® SV DIRECTIONAL
CONTROL VALVES

PacSeal® rotary SV Directional control valves direct fluid flow to desired ports, with many configurations possible utilizing one or two cylinder ports.
Surface and Industrial Applications
 Basic Model SVX Model Port Size Flow Rate Cv
  SV-25 SVX-25  1/4" 10 GPM  0.95
  SV-50 SVX-50  1/2" 30 GPM  3.2
  SV-100 SVX-100  1" 75 GPM  9.2
  SV-150 SVX-150  1 1/2" 180 GPM  21
  SV-200    2" 300 GPM  33
Harsh Environment
Model Application
  SVS-Series  SubSea - Rotary ROV Operable
  SVT-Series  TopSide/SplashZone - Rotary Manual Operation

Features

Standard rotor configurations allow for interflow when shifting to be drained to tank through the constantly opened return port.  The all ports blocked rotor requires an additional case drain port on the housing.

The dual pressure configuration allows for two inlet pressures (high and low) to be alternately directed to a single cylinder port. The tank return position connects the cylinder port to the constantly open return. The fourth position is pressure ports and cylinder port blocked.  The primary application is for a single operating cylinder such as a rubber press with a gravity return for opening the press.

  • ShearFlo® sealing technology ensures high cycle life for critical service applications even in contaminated fluids.
  • Hardened stainless steel sealing elements are lapped and polished to exacting standards of finish and flatness which produces a leak proof, contaminant resistant metal-to-metal seal.
  • The sealing elements are spring preloaded and pressure energized which maintains contact between the two sealing surfaces causing continuous lapping during use which eliminates small scratches.

OPTIONS AVAILABLE

Manual Operation:

Detent positioned or spring centered handle operated

Body Porting Options:

Side and bottom ported are threaded NPT or SAE. Subplate & manifold mounted configurations have
O-ring face seals for interfacing with manifold.

Rotor Flow Pattern:

  • Manipulator - either position operates a cylinder port with the opposite port drained to tank, center position cylinders drain to tank and pressure port blocked.
  • Selector - either position operates a cylinder port with the opposite port drained to tank, center position pressure and cylinder ports blocked.
  • Bypass - either position pressurizes a cylinder port with the opposite port blocked, center position pressure and cylinder ports blocked.
  • Open Center - either position operates a cylinder port with the opposite port drained to tank, center position pressure port to tank, cylinder ports blocked.
  • *All Blocked - either position operates a cylinder port with the opposite port connected to return. Center position all 4 ports blocked. Valves have an additional port to drain the interflow, caused by shifting, to tank.
  • *Return Center - center position ports flow to tank.
  • *Crossover - either position operates a cylinder port with the opposite port connected to return. Center position pressure and both cylinder ports are connected
  • Dual Pressure - two pressure sources are selectable for one cylinder port.

*Not a normally stocked item. Check with the factory for availibility

Detent Pattern:

  • 3-Position: Selector, Manipulator, Open-Center, Bypass, All Blocked, Return Center and Crossover (4 way)
  • 2-Position: Bypass, 90° (4 way)
  • 2-Position: 45° Right (CW) or Left (CCW) (3 way)
  • 4-Position: Dual Pressure (4 way)
Directional Control Valve Symbols
SV-100 Inline/Side Ported Rotary Directional Control Valve

SVX-100 Integral Manifold