Parker 70714 Valve

The Parker 70714 is a performance-grade 3/4" GP657 solenoid valve engineered specifically for technical saturated steam service. Designed with a robust brass body and high-resiliency EPT (ethylene propylene) diaphragm, this 2-way normally closed steam valve manages pressure differentials from 1 to 50 PSI. For veteran contractors, the stainless steel seat insert is a critical feature, mitigating the erosion typically seen in high-velocity steam lines. With a high flow capacity of 7.4 Cv, this unit ensures minimal pressure drop across the orifice in commercial boiler systems and industrial autoclaves.

Installation requires a Parker G23 solenoid coil (sold separately), as the valve body is provided as a standalone component to allow for field-specific voltage configuration. Note that the maximum fluid temperature is strictly rated at 300°F. Professional technicians must ensure this valve is not utilized in systems where steam is regulated down to 50 PSI from higher inlet pressures, as resulting turbulence can lead to premature diaphragm failure. The 3/4" FNPT connections provide a standard interface for HVAC steam heat and process control applications.

• Steam-Specific Seals: Utilizes EPT (ethylene propylene) internals to maintain seal integrity in temperatures up to 300°F.
• High Flow Efficiency: A 7.4 Cv rating provides superior throughput for 3/4" lines compared to smaller general-purpose valves.
• Durability: The stainless steel seat prevents wire-drawing and steam-cutting, extending the service life of the valve body.
• Normally Closed Logic: Ensures the valve returns to a safe, closed position upon loss of electrical power.

Is the coil included with the Parker 70714?
No, this is the valve body only. You must pair it with a compatible G23 series coil for the specific voltage of your control circuit.

Can I use this valve for water or air applications?
While the Parker GP657 is optimized for steam, it can technically handle fluids compatible with EPT and brass within the 50 PSI limit, though the GP600 series is generally preferred for non-steam media.

What causes a steam solenoid valve to buzz during operation?
Buzzing usually indicates a voltage drop at the coil, mineral scale buildup on the plunger, or a missing/broken shading ring within the armature tube.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.