UNKNOWN FNW681 - VALVE

Description:

The Unknown FNW681 Valve is a wafer-style silent check valve used in industrial piping systems to prevent reverse flow and protect pumps and process equipment. Commonly installed in water treatment plants, HVAC systems, power generation facilities, and industrial fluid handling applications requiring reliable backflow prevention. Maintenance teams and system integrators use this valve for replacement, retrofit, and expansion of piping systems to maintain efficient and dependable flow control.

Applications:

The Unknown FNW681 Valve is commonly used in water distribution systems, HVAC installations, industrial process piping, and power generation facilities where reverse flow protection is critical. Its wafer-style design allows for compact installation between flanges while providing quiet operation and low pressure loss in liquid and gas applications.

Technical Specifications:

• Manufacturer Part Number (MPN): FNW681
• Product Type: Silent Check Valve
• Valve Style: Wafer
• Body Material: Cast Iron
• Pressure Rating: 200 PSI Non-Shock
• Suitable Media: Water and Compatible Fluids
• Application Environment: Industrial Piping Systems and Fluid Handling Applications

Common Replacements:

• FNW Figure 670 Check Valve
• Keystone Figure 86 Check Valve
• Champion NZW Wafer Check Valve