The Zurn Wilkins Model ZW209 is a 10 inch pilot-operated pressure reducing valve designed for fire protection and industrial applications, featuring Class 300 flanged connections. It effectively reduces high inlet pressures to a stable outlet pressure, protecting downstream equipment. Constructed with a durable ductile iron body and stainless steel internal components, it offers a maximum operating pressure of 400 PSI and an adjustable pilot spring range of 15-120 psi. Internal and external epoxy coating ensures corrosion resistance, while isolation valves and pressure gauges simplify maintenance. This valve is NSF/ANSI/CAN 61 certified lead-free.
The Zurn Wilkins Model ZW209 is a pilot-operated pressure reducing valve designed to reduce high inlet pressures to a safe and stable outlet pressure in various applications, particularly for fire protection. Its pilot assembly reacts to changes in downstream pressure, allowing the main valve to modulate and ensure a constant set pressure, sealing shut to prevent downstream damage.
Construction & Features
Features an epoxy coating both internally and externally for superior corrosion protection, and is FDA approved.
Standard inclusions are a pilot assembly, "Wye" type strainer, isolation valves, and inlet and outlet pressure gauges, facilitating quick and easy maintenance.
This valve is built with a ductile iron ASTM A536 main valve body and bonnet, stainless steel disc guide, seat, and stem, and a Buna-N rubber disc with a nylon reinforced Buna-N diaphragm.
The closing speed control (optional) on this valve should always be open at least three (3) turns off its seat.
Specifications
Model: ZW209
Product Type: Pilot Operated Pressure Reducing Valve
Valve Size: 10 inch
End Connection: Class 300 Flange
Main Valve Body Material: Ductile Iron ASTM A536
Main Valve Bonnet Material: Ductile Iron ASTM A536
Disc Material: Buna-N Rubber
Diaphragm Material: Nylon Reinforced Buna-N
Disc Guide Material: Stainless Steel
Seat Material: Stainless Steel
Stem Material: Stainless Steel
Spring Material: Stainless Steel
Maximum Operating Pressure: 400 PSI
Minimum Inlet Pressure: 10 PSI
Temperature Rating: Water 33°F to 140°F
Pilot Spring Range: 15-120 psi
Coating: Internal and external epoxy coating, FDA Approved
Certificates & Approvals
Standards Compliance: ANSI/AWWA C530
Lead-Free Certification: NSF/ANSI/CAN 61 (0.25% MAX. WEIGHTED AVERAGE LEAD CONTENT)
FAQs
What is the primary function of the Zurn Wilkins Model ZW209 valve?
The Zurn Wilkins Model ZW209 is a pilot-operated pressure reducing valve designed to lower and stabilize high inlet pressures to a safe, constant outlet pressure in various applications.
What type of connections does this specific 10-ZW209FPY model have?
This model features 10 inch Class 300 Flange connections, suitable for robust integration into flanged piping systems.
What is the maximum operating pressure for the ZW209 Class 300 flanged valve?
The maximum operating pressure for this Zurn Wilkins ZW209 valve with Class 300 flanged connections is 400 PSI.
Is the Zurn Wilkins ZW209 valve suitable for potable water applications?
Yes, the Zurn Wilkins ZW209 valve meets the requirements of NSF/ANSI/CAN 61 and is certified lead-free (0.25% MAX. WEIGHTED AVERAGE LEAD CONTENT), making it suitable for potable water.
What materials are used for the main valve body and internal components?
The main valve body and bonnet are constructed from Ductile Iron ASTM A536, with stainless steel for the disc guide, seat, and stem, and Buna-N rubber for the disc and nylon reinforced Buna-N for the diaphragm.
