Description
The Mosmatic 90.111 Check Valve is a premium-grade stainless steel component engineered for reliable backflow prevention in high-pressure applications. Designed with precision, this valve features a ¼” NPTF IN to ¼” NPTF OUT threading, offering seamless integration into a wide range of industrial and commercial fluid systems.
With a compact diameter of ¾” and an overall length of 2.1″, the valve is built to perform under demanding conditions. It includes a hard spring mechanism with an opening pressure of 14 PSI and a closing pressure of 20 PSI. This check valve is rated to withstand operating pressures up to 4000 PSI and temperatures reaching 200°F, making it a trusted choice for maintaining system integrity in high-pressure environments.
Applications
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High-pressure cleaning systems
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Car wash systems
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Industrial fluid systems
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Water treatment and filtration units
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Pressure washer and pump protection
Key Features
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Durable stainless steel construction for corrosion resistance
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¼” NPTF IN and OUT threads for easy connection
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Compact ¾” diameter and 2.1″ length
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Handles up to 4000 PSI and 200°F water temperature
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Precision-engineered hard spring: 14 PSI opening, 20 PSI closing
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Ensures one-way flow and prevents backflow in fluid systems

Specs
Material Type: Stainless Steel
Temperature: 200°F
Opening Pressure: 14 psi
Closing Pressure; 20 psi
Pressure: 4000 psi
Thread In: 1/4″ NPTF
Thread Out: 1/4″ NPTF
Diameter (D): ¾”
Nominal Width (NW): 1/4″
Length: 2.1″
Weight: 0.2 lbs

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