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SUNROOM
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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Key words:
Fire System Brass Spring Check Valve ,
Product Description
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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No. 55 Baoshun Road, Successful Development Zone,Quanzhou City，Fujian Province
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