300X Flanged Slowly Closed Check Valve with Strainless Steel Accessory

• Customization: Available
• Media: Water
• Certification: CCC, ISO, CE
• Model NO.: 300X
• Connection: Flange
• Valve Seat: Double-Seat
• Structure: Spring Diaphragm
• Material: Cast Iron
• Color: Blue or Customized
• Pn: 10 16 150lb 300lb
• Dn: 50-3200mm
• Design: Cast / Forged
• Operator: Manual / Electric Acuated / Pneumatic
• Sealing: EPDM / NBR / PTFE / Viton / Stainless / Stelliete
• Spray: 250 Micron
• Transport Package: Wooden Case
• Specification: Ductile iron material
• Trademark: BH
• Origin: China
• HS Code: 8481804090
• Production Capacity: 5000PCS/Year

Product Description

300X Slowly closed check valve

Purpose
Used for the pump outlet in high building or other water supply systems to prevent the medium from backflow and reduce water hammer so as to leave a safe and peaceful effect.
Features
Able to prevent both water hammer and water shock from being produced so as to get the slow-closing and silencing effect.It is a check valve able to adjust and control the open-close speed and,at the time for the pump to start or stop working,can adjust the open-close speed to its best on the site.
Principle
When the pump stops,the medium flows back,the pressure in the upper cavity of the valve is larger than that in the lower one,the disc falls off to close.Control of the speed for the back water to enter the upper cavity of the diaphragm can adjust the speed for the valve to close so as to get the slow closing effect.
Executive standard
Size of flange:GB/T 17241.6
Test and inspection:GB/T 13927