Parker 70223 Valve

For standard-duty applications where reliability is non-negotiable, the Parker 70223 stands as the industrial benchmark. This 1/4" NPT solenoid valve is a normally closed, 2-way direct-acting unit, specifically engineered for saturated steam service up to 50 PSI. Built with a heavy-duty brass body and a rugged stainless steel seat insert, it manages high-temperature media up to 300°F without integrity loss. The internal EPT (ethylene propylene) diaphragm and seals provide superior chemical resistance and tight shut-off, making the Series GP257 a staple for commercial autoclaves, sterilizers, and steam generators. With a flow capacity of 0.98 Cv, this valve ensures precise fluid control. Note that this pressure vessel is sold as a standalone unit; a G23 solenoid coil is required for operation. Technicians should verify that systems regulated down to 50 PSI do not exceed this threshold upstream to prevent diaphragm damage. This Parker Gold Ring equivalent delivers the consistent performance required for demanding mechanical rooms.

• Steam-Rated Durability: Optimized for 1-50 PSI saturated steam service with a 300°F maximum temperature rating.
• Corrosion Resistance: Features a high-grade brass body and stainless steel seat to withstand harsh thermal cycling.
• Precision Flow Control: A 0.98 Cv factor provides the necessary throughput for 1/4 inch steam valve applications.
• Bubble-Tight Seal: Integrated EPT elastomers ensure a reliable, normally closed fail-safe position.

What is the proper mounting orientation for the Parker 70223?
For optimal longevity and to prevent debris accumulation in the plunger tube, it is recommended to mount the valve with the solenoid coil in a vertical and upright position.

Can this valve be used for high-pressure steam above 50 PSI?
No, this unit is rated specifically for 1-50 PSI steam. Exceeding these limits or using it on systems where steam is regulated down from high pressure can result in immediate seat or diaphragm failure.

Does this part come with the electrical coil?
This is a pressure vessel only. You must source a compatible Parker G23 coil separately to complete the installation.

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.