The Mosmatic 90.038 Check Valve is a brass-bodied valve engineered for applications requiring low opening pressure, made possible by its soft spring (~1.5 psi opening, ~2 psi closing). With a 1/4" NPTF inlet and 3/8" NPTF outlet, this model is ideal for fluid systems that need a smooth pressure transition and anti-backflow protection.

Its 3" length offers added flow stability, while the 4000 psi rating makes it suitable for general-purpose fluid and pneumatic installations.

Applications:

• Car wash and cleaning systems

• Light-duty spray and dosing lines

• Low-resistance backflow prevention

• Pneumatic and fluid step-up configurations

Features:

• Brass construction for reliability and economy

• Soft spring for low-pressure response

• 1/4" NPTF inlet to 3/8" NPTF outlet

• Compact 3" form factor

• Pressure rated to 4000 psi

Specs

Material: Brass
Max Pressure: 4000 psi
Opening Pressure: ~1.5 psi
Closing Pressure: ~2 psi
Inlet: 1/4" NPTF
Outlet: 3/8" NPTF
Length: 3"
Nominal Width: 1/4"
Temperature: 200°F
Weight: 0.4 lbs

The Mosmatic 90.037 Check Valve is a brass one-way valve equipped with a soft spring for low-opening pressure performance, activating at just ~1.5 psi. Its compact 2.4" design and 1/4" NPTF inlet/outlet make it ideal for use in fluid and air systems where smooth, low-resistance flow is essential.

Rated for up to 4000 psi, the 90.037 is an excellent choice for car wash, misting, or dosing systems that operate at moderate pressure but require precise flow control.

Applications:

• Low-pressure cleaning and rinsing systems

• Pneumatic tools and lines

• Chemical and fluid dosing setups

• Compact industrial installations

Features:

• Brass body with corrosion resistance

• Soft spring for gentle activation (~1.5 psi)

• 1/4" NPTF ports

• 4000 psi pressure capacity

• Lightweight and compact design

Specs

Material: Brass
Max Pressure: 4000 psi
Opening Pressure: ~1.5 psi
Closing Pressure: ~2 psi
Inlet / Outlet: 1/4" NPTF
Length: 2.4"
Nominal Width: 1/4"
Temperature: 200°F
Weight: 0.4 lbs

The Mosmatic 90.036 Check Valve is a brass low-pressure valve built for precision flow control in systems operating up to 4000 psi. Equipped with a soft spring, it opens at approximately 1.5 psi and closes around 2 psi, allowing it to operate effectively in low-pressure or sensitive flow applications.

With 3/8" NPTF threads on both inlet and outlet and a 3" overall length, the 90.036 offers easy installation and consistent performance in pneumatic, cleaning, or dosing systems.

Applications:

• Low-pressure fluid and chemical lines

• Compressed air tools

• Spray and rinse equipment

• Car wash and dosing systems

Features:

• Durable brass body

• Soft spring (~1.5 psi opening)

• 4000 psi pressure capacity

• Symmetric 3/8" NPTF connections

• Compact yet sturdy 3" build

Specs

Material: Brass
Max Pressure: 4000 psi
Opening Pressure: ~1.5 psi
Closing Pressure: ~2 psi
Inlet / Outlet: 3/8" NPTF
Length: 3"
Nominal Width: 1/4"
Temperature: 200°F
Weight: 0.4 lbs

The Mosmatic 90.035 Check Valve is a brass low-pressure valve with a soft spring, allowing for activation at just ~1.5 psi and closing at ~2 psi. This makes it perfect for delicate fluid systems, dosing equipment, and any application requiring minimal resistance to flow.

With a 3/8" NPTF inlet and 1/4" NPTF outlet, this compact 2.4" valve supports up to 4000 psi, combining low-pressure precision with solid brass durability.

Applications:

• Low-pressure detergent and fluid lines

• Car wash dosing systems

• Spray and mist systems

• Pneumatic and soft flow controls

Features:

• Brass construction

• Soft spring (~1.5 psi opening)

• 4000 psi max pressure

• Compact 2.4" design

• Threaded 3/8" inlet and 1/4" outlet

Specs

Material: Brass
Max Pressure: 4000 psi
Opening Pressure: ~1.5 psi
Closing Pressure: ~2 psi
Inlet: 3/8" NPTF
Outlet: 1/4" NPTF
Length: 2.4"
Nominal Width: 1/4"
Temperature: 200°F
Weight: 0.4 lbs

The Mosmatic 90.034 Check Valve is a brass unidirectional valve engineered for medium to high-pressure applications up to 4000 psi. It features 3/8" NPTF female threads on both inlet and outlet, making it a go-to choice for symmetrical system configurations.

With a hard spring design, this valve activates at approximately 14 psi and closes at 20 psi, helping prevent backflow while ensuring steady system pressure. Its 3" length allows for secure and stable integration.

Applications:

• Car wash and spray systems

• Pneumatic equipment

• Fluid delivery lines

• Pressure systems requiring 3/8" threading

Features:

• Brass construction for dependable performance

• 4000 psi pressure rating

• 3/8" NPTF threads on both sides

• Hard spring for one-way flow protection

• Compact and corrosion-resistant

Specs

Material: Brass
Max Pressure: 4000 psi
Opening Pressure: ~14 psi
Closing Pressure: ~20 psi
Inlet / Outlet: 3/8" NPTF
Length: 3"
Nominal Width: 1/4"
Temperature: 200°F
Weight: 0.4 lbs

The Mosmatic 90.033 Check Valve is a brass one-way valve designed for medium to high-pressure systems up to 4000 psi. Its 3/8" NPTF inlet and 1/4" NPTF outlet allow smooth integration in setups that require different thread sizes on each end.

Engineered with a hard spring mechanism, it opens at ~14 psi and closes at ~20 psi, helping to prevent reverse flow and maintain system efficiency. Its 2.4" length makes it an excellent solution for compact installations.

Applications:

• Car wash and spray systems

• Compressed air and fluid control lines

• Pressure washers

• Step-down threaded connections

Features:

• Solid brass construction

• Rated up to 4000 psi

• Mixed NPTF thread sizes (3/8" in, 1/4" out)

• Internal hard spring for reliable one-way flow

• Lightweight and corrosion resistant

Specs

Material: Brass
Max Pressure: 4000 psi
Opening Pressure: ~14 psi
Closing Pressure: ~20 psi
Inlet: 3/8" NPTF
Outlet: 1/4" NPTF
Length: 2.4"
Nominal Width: 1/4"
Temperature: 200°F
Weight: 0.4 lbs

The Mosmatic 90.032 Check Valve is a brass-bodied one-way valve engineered for medium to high-pressure systems up to 4000 psi. Designed with a hard internal spring, this valve activates at approximately 14 psi and closes near 20 psi, providing effective backflow prevention and system protection.

Featuring a 1/4" NPTF inlet and a 3/8" NPTF outlet, the 90.032 is perfect for installations requiring different connection sizes. Its 3" body length offers compact and reliable integration into industrial cleaning, fluid control, or pneumatic systems.

Applications:

• Pressure washing systems

• Pneumatic and air line equipment

• Car wash installations

• Industrial fluid setups with mixed connection sizes

Features:

• Brass construction for reliable performance

• Opening pressure ~14 psi, closing pressure ~20 psi

• Rated for 4000 psi

• Mixed connection: 1/4" NPTF inlet, 3/8" NPTF outlet

• Durable and compact 3" length

Specs

Material: Brass
Max Pressure: 4000 psi
Opening Pressure: ~14 psi
Closing Pressure: ~20 psi
Inlet: 1/4" NPTF
Outlet: 3/8" NPTF
Length: 3"
Nominal Width: 1/4"
Temperature: 200°F
Weight: 0.4 lbs

The Mosmatic 90.031 Check Valve is a brass-bodied one-way valve designed for use in medium to high-pressure systems up to 4000 psi. It features a hard spring that activates at approximately 14 psi and closes near 20 psi, preventing reverse flow and protecting system components.

Fitted with 1/4" NPTF inlet and outlet ports and a 2.4" compact design, this valve is ideal for general-purpose pressure systems, including car wash setups, air tools, and cleaning systems.

Applications:

• Pressure washer equipment

• Pneumatic and air systems

• Car wash components

• General industrial fluid systems

Features:

• Durable brass construction

• Compact and easy to install

• 4000 psi pressure rating

• 1/4" NPTF female inlet and outlet

• Hard spring design ensures consistent performance

Specs

Material: Brass
Max Pressure: 4000 psi
Opening Pressure: ~14 psi
Closing Pressure: ~20 psi
Inlet / Outlet: 1/4" NPTF
Length: 2.4"
Nominal Width: 1/4"
Temperature: 200°F
Weight: 0.4 lbs