Epoxy coated internally and externally for corrosion protection
Includes isolation valves and pressure gauges
Pilot spring range: 15-120 psi
Temperature rating: 33°F to 140°F
Certified to NSF/ANSI/CAN 61 for lead content
Description
The Zurn Wilkins Model ZW209FPX is a 4-inch pilot-operated pressure reducing valve with ANSI Class 150 flanged connections, designed for fire suppression systems requiring stable downstream pressure and high flow rates. Its ductile iron body and bonnet are internally and externally epoxy coated for superior corrosion resistance. Standard features include isolation valves and pressure gauges for simplified maintenance. The valve's pilot assembly ensures a constant downstream set pressure, automatically sealing shut to prevent damage. With a pilot spring range of 15-120 psi and lead-free certification, it ensures reliable performance and compliance.
Help Me Connect
Connections
The Zurn Wilkins ZW209FPX is designed with ANSI Class 150 flanged connections.
This valve is specifically suited for use in fire suppression systems where high inlet pressures need to be reduced to a safe and stable outlet pressure.
The Zurn Wilkins Model ZW209 Pilot Operated Pressure Reducing Valve is designed for many applications where the reduction of high inlet pressures to safe and stable outlet pressure is required, such as in fire suppression systems. The pilot assembly reacts to changes in downstream pressure, allowing the main valve to modulate to maintain a constant downstream set pressure and automatically seals shut to prevent damage.
Features
Provides steady downstream pressure and allows high flow rates.
Epoxy coating internally and externally for corrosion protection.
Includes isolation valves and pressure gauges for quick and easy maintenance or repair.
Pilot assembly ensures constant downstream set pressure.
Valve stem guided top and bottom.
Diaphragm actuated, pilot controlled valve.
Materials
Main Valve Body: Ductile Iron ASTM A536
Main Valve Bonnet: Ductile Iron ASTM A536
Disc Guide: Stainless Steel
Seat: Stainless Steel
Disc: Buna-N Rubber
Diaphragm: Nylon Reinforced Buna-N
Stem: Stainless Steel
Spring: Stainless Steel
The closing speed control (optional) on this valve should always be open at least three (3) turns off its seat.
Specifications
Product Name: 4 ZW209 FIRE PRV CLASS 150 FLANGE
SKU: 4-ZW209FPX
Valve Type: Pilot Operated Pressure Reducing Valve
Body Style: Globe
End Connection: ANSI Class 150 Flange
Nominal Size: 4 inch
Minimum Inlet Pressure: 10 PSI
Temperature Rating: Water 33°F to 140°F
Pilot Spring Range: 15-120 psi
Coating: Epoxy Coated, FDA Approved
Main Valve Body Material: Ductile Iron ASTM A536
Main Valve Bonnet Material: Ductile Iron ASTM A536
Disc Guide Material: Stainless Steel
Seat Material: Stainless Steel
Disc Material: Buna-N Rubber
Diaphragm Material: Nylon Reinforced Buna-N
Stem Material: Stainless Steel
Spring Material: Stainless Steel
Certificates & Approvals
ANSI/AWWA C530
Meets the requirements of NSF/ANSI/CAN 61* (0.25% MAX. WEIGHTED AVERAGE LEAD CONTENT)
Lead Free
FAQs
What is the primary application of the Zurn ZW209FPX valve?
The Zurn ZW209FPX valve is primarily used in applications requiring the reduction of high inlet pressures to a safe and stable outlet pressure, especially in fire suppression systems where steady downstream pressure and high flow rates are essential.
What type of connections does this 4-inch valve use?
This 4-inch ZW209FPX valve utilizes ANSI Class 150 flanged connections, designed for an inlet rating of 250 psi.
What materials are used in the construction of the ZW209FPX valve?
The main valve body and bonnet are constructed from Ductile Iron ASTM A536. Key internal components like the disc guide, seat, and stem are stainless steel, while the disc is Buna-N Rubber and the diaphragm is Nylon Reinforced Buna-N.
How does the ZW209FPX maintain a constant downstream pressure?
The valve utilizes a pilot assembly that reacts to changes in downstream pressure. It modulates the main valve between closed and open positions to ensure a constant set pressure downstream and automatically seals shut once the pilot setting is reached to prevent damage.
Does this pressure reducing valve meet lead-free standards?
Yes, the Zurn Wilkins ZW209FPX meets the requirements of NSF/ANSI/CAN 61, indicating it has a maximum weighted average lead content of 0.25% and is considered lead-free.
