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- SIL 3 capability: The product has met manufacturer design process requirements of safety Integrity Level (SIL) 3.
- Force balanced valve design with high safety factors to de-energize at all pressures in normally open and normally closed configurations.
- 100% computerized diagnostic testing to ensure each solenoid valve is proven along with confirmed safety factors.
- Bifold has state of the art product qualification and production equipment including flow (Cv), environment (-70° to 180° C), function and leakage testing and data logging.
- The standard solenoid operator is a holding magnet type which ensures the valve will operate in damp conditions. The risk of corrosion to internal components is reduced, unlike other valve types that incorporate a solenoid core tube design with a 'wetted' armature that will only operate in dry air conditions!
- Tolerant to moist air in control lines.
- The standard solenoid valve has proven arctic service and low temperature performance.
- Products are manufactured, inspected, assembled and tested in our state of the art production facilities.
- Large clearances, metal back up to seals and no knife edge sealing to prevent long term valve sticking.
- Dry solenoid armature to prevent corrosion and affecting safe shut down.
- Simple maintenance - Removable transient suppression diode on Ex d DC solenoid valve assemblies and removable solenoid coil without removing valve from the tubing.
- Spring Return
Ambient Temperature Range
- -60° to 95° C (-76° to 203° F)
Approvals & Certifications
- Leak Test
- ATEX II 1 GD, Ex ia IIC T4/T6 Ga
- ATEX II 2 GD, Ex d IIC T4/T5/T6
- ATEX II 2 GDc, Ex Emb IIC T4 to T3 Gb
- IEC 60529
- IEC Ex Emb IIC T4 to T3 Gb, Ex d IIC T4/T5/T6, Ex ia IIC T4/T6 Ga
- SIL 3
- 1/4” BSPP Female
- 1/2” NPT
- M20 x 1.5
- Class H - Solenoid Insulation
- 45 mA Min. - Solenoid Coil
- 100 % Duty Cycle Continuous Rating/Energised
- Normally Closed
- Normally Open
- Short Circuit Current 1,500 A (Typical 74AT4)
Enclosure, Body Material
- 316L Stainless Steel - Solenoid & Valve
- NEMA 4X
- 0.73 Cv
Materials of Construction
- Metric A4 18/10 Grade Stainless Steel (Equivalent to 316L Grade Stainless Steel) - Fasteners
- Filtered Lubricated or Unlubricated Air
- Inert Gas
- Mineral Oil
- Sweet (Natural) & Sour Gas
- Water Glycol Mixtures
- Any Orientation
- 1/4” NPT Female
- Auto Reset
- Latch Energised
- Manual Override - Spring Return & Stayput
- Manual Reset
- Tamper-proof Manual Latch
- 1.8 W - Ex d
- 3 W
- 3.6 W - Ex Emb
- bar: 0 to 10
- kPa: 0 to 1,000
- psig: 0 to 145
- -55° to 130° C (-67° to 266° F)
- 260 ohms
- < 100 milliseconds - Pull-In
- < 70 milliseconds - Drop Out
Seat / Seal Material
- Seal: Viton
- 302S26 Stainless Steel
- 316S42 Stainless Steel
- psi: 0 to 508 (kPa: 0 to 3,503, bar: 0 to 35)
- 110 Vac, 50/60 Hz
- 12-110 Vdc
- 240 Vac, 50/60 Hz
- -20° C (-4° F) to Upper Limit of Solenoid Classification
- Arctic Service Option to -60° C (-76° F)