Threaded Brass Spring Check Valve

Material: Brass Sealing Disc: Silicone rubber End Connection: Threaded BSPP (G), BSPT, or NPT connection Operating Temperature: -20°C to 150°C Rated Pressure: PN16 / 1.6 MPa Opening Pressure: 0.4 bar / 0.04 MPa Surface Finish: Rough brass finish Available Sizes: 1/2″ / DN15, 3/4″ / DN20, 1″ / DN25, 1-1/4″ / DN32, 1-1/2″ / DN40, 2″ / DN50, 2-1/2″ / DN65, 3″ / DN80, 4″ / DN100

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Противопожарный клапан и комплектующие

Латунный клапан

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This threaded brass spring check valve is designed for one-way water flow control in vertical pipeline installations. With a brass body and silicone rubber disc, it helps prevent reverse flow while allowing forward flow through the valve, making it suitable for water pipeline and fire protection system applications.

Key Features

Spring check valve designed for one-way water flow control
Helps prevent backflow in vertical pipeline installations
Brass body construction suitable for water system applications
Silicone rubber disc supports stable sealing performance
Threaded connection options for different project requirements
Available with BSPP (G), BSPT, or NPT threads
PN16 pressure rating for standard pipeline use
0.4 bar start pressure for valve opening operation
Wide size range from DN15 to DN100

Product Configurations

Item	Details
Valve Structure	Spring-loaded check valve
Valve Function	One-way flow control and backflow prevention
Application	Water pipeline and fire protection system use
Installation Direction	Vertical installation only
Size Range	1/2″ / DN15 to 4″ / DN100
Thread Options	BSPP (G), BSPT, or NPT
Pressure Class	PN16 / 1.6 MPa
Disc Material	Silicone rubber disc

FAQSilicone rubber disc
Q1: Who are we?
A: We are a fire fighting equipment manufacturer based in Fujian, China. Since 2004, we have supplied a wide range of fire safety products for domestic and international markets, including fire sprinklers, hydrants, valves, hoses and extinguishers.
Q2: How do we ensure product quality?
A: We follow strict quality control procedures from raw material inspection to production and final shipment. Pre-production samples and final inspections can be arranged according to order requirements.
Q3: What products do we supply?
A: We supply fire sprinklers, fire extinguishers, fire hydrants, fire valves, fire hoses, hose reels, fire cabinets, foam equipment and other fire fighting accessories.
Q4: Why choose Sunroom?
A: Sunroom has over 21 years of experience in fire fighting equipment manufacturing. We offer a wide product range, support customized production, and provide certificates or technical documents according to product and project requirements.

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