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Type SCV & DCV Pilot-Operated Check Valves

Brand: Bifold - by Rotork
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Bifold fluidpower pilot operated check valves feature compact cartridge ball check valves in a 316S11 stainless steel body. 

The valves are used to hydraulically lock actuators until pressure is applied, and are available as single or dual pilot operated types. 

Check valve cartridge seats are PEEK with the ball and spring stainless steel. The valve is ruggedly constructed, and affords a very low pressure drop. 

The standard cracking pressure is 5 psi. Flow ratings are either 68 or 190 litres per minute. 

Valve cartridges are easily replaced without disturbing hydraulic tubing. Dual pilot operated valves have an internally piloted piston eliminating external pilot tubing.
Features
  • 316L stainless steel
  • Arctic service options to -60°C (-76°F)
  • NACE MR-01-75 option
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Bifold fluidpower pilot operated check valves feature compact cartridge ball check valves in a 316S11 stainless steel body. 

The valves are used to hydraulically lock actuators until pressure is applied, and are available as single or dual pilot operated types. 

Check valve cartridge seats are PEEK with the ball and spring stainless steel. The valve is ruggedly constructed, and affords a very low pressure drop. 

The standard cracking pressure is 5 psi. Flow ratings are either 68 or 190 litres per minute. 

Valve cartridges are easily replaced without disturbing hydraulic tubing. Dual pilot operated valves have an internally piloted piston eliminating external pilot tubing.
Features
  • 316L stainless steel
  • Arctic service options to -60°C (-76°F)
  • NACE MR-01-75 option
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Specifications

Brand

Approvals & Certifications

  • ISO 4406 Class I,8/15

Cracking Pressure

  • psi: 5 (kPa: 34.47, bar: 0.3447)

Enclosure, Body Material

  • 316S11 Stainless Steel

Filter

  • 10 microns

Flow Rate

  • 15 gpm (68 LPM) - Typical 4018
  • 29 gpm (190 LPM) - Typical 4035

Materials of Construction

  • Stainless Steel - Ball & Spring Material

Media

  • Mineral Oil
  • Some Chemicals
  • Water Glycol Mixtures

Mounting

  • Three M6 Clearance Holes - Typical 4018
  • Three M8 Clearance Holes - Typical 4035

Mounting Position

  • Any Orientation

NACE & NIST

  • NACE MR-0175

NPT Connection

  • 1/2" NPT Female - Typical 4018
  • 3/4" NPT Female - Typical 4035

Pressure Drop

  • psi: 17.4 (kPa: 120, bar: 1.2) at 29 gpm (190 LPM) - Typical 4035
  • psi: 65.27 (kPa: 450, bar: 4.5) at 15 gpm (68 LPM) - Typical 4018

Seat / Seal Material

  • Seal: Fluorosilicone
  • Seal: Nitrile
  • Seal: Viton
  • Seat: PEEK

Supply Pressure

  • psi: 3,000 (kPa: 20,700, bar: 207)
  • psi: 5,000 (kPa: 34,500, bar: 345)

Temperature Range

  • -20° to 180° C (-4° to 356° F) - Viton
  • -30° to 130° C (-22° to 266° F) - Nitrile
  • -50° to 40° C (-58° to 104° F) - Fluorosilicone
  • -60° C (-76° F) - Arctic Service Options
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