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Type SCV & DCV Pilot-Operated Check Valves
Brand: Bifold - by Rotork
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
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
