NBR Soft Seat Wafer Swing Check Valve Zero Leakage​

Check Valve Features

Single Disc Wafer Swing Check Valve

Applicable Standards:
- Design and Manufacturing: ASTM B16.34

- Flange Connection: ASTI16.5

- Test and Inspection: API598

Size Range:
-1 1/2"~16"

Pressure Rating:
- ANSI 150LB,300LB

- JIS 10K,20K
Temperature Range:
- -20°C~180°C

(PN16)Single Disc Swing Check Valve Dimension

(Unit:mm)

Check Valve Overview

Check Valves are automatic shut-off valves that are commonly used for preventing backflow or drainage in a pipe system.Often applied on the discharge side of pumps,check valves prevent the system from draining if the pump stops and protects against backflow, which could harm the pump and/or other equipment.

Swing Check Valve has a flat disc that pivots or swings about a hinge pin. They are low cost, and have low head loss characteristics when fully open. But because of the long stroke and inertia of the disc, the traditional swing check valve may slam in vertical pipe installations. These valves are therefore sometimes outfitted with a lever and weight accessoryy. They can handle liquids with solids such as wastewater.

Features:

• Economical Design:Low weight and short laying length produce savings in initial cost, space requirements,and installation when compared to full-body,swing type check valves.
• Minimal Head Loss: Head loss is minimized by providing a short, straight and virtually unobstructed flow path
• Quick Closure to Reduce Water Hammer: Shut-off is achieve via the fully automatic, spring assisted disc that closes near zero flow velocity - the lightweight, sing disc design creates a positive shutoff prior to flow reversal which helps keep surges to a minimum
• Resilient Soft Seats: coupled with precision machined sealing surfaces help to ensure a bubble tight seal that meets or exceeds API 598 test requirements

Xidelong Brief Introduction

Xidelong is a professional manufacturer in valve automation, integrating with research and development, manufacturing, sales and after-sales services of valve and accessories over 12 years.

The factory of Xidelong valve is located in Longwan (Zhejiang, China), covering an area of 25,000 square meters, of which square meter is for office work whereas 24,000 square meters is for production (including the assembly area, testing area and warehouse area). Moreover, the factory is only 9 miles to Wenzhou Airport, greatly facilitating for the visitor of our international customers and partners.

Boasting of excellent technical strength, design and experience in Gate, Ball, Butterfly and Bellow valves manufacturing, the company has a quality management system as required by ISO9001-2008.

Xidelong Valve have been working to find reliable sales agents or distributors.

Xidelong Manufactory

Established in 2007, Xidelong Valve is a preferred supplier of industrial valves for major Chinese manufacturers.The factory of Xidelong valve is located in longwan (Zhejiang, China).

Xidelong Business

Valve: Ball Valve, Butterfly Valve, Gate Valve, Globe Valve,  Check Valve, Sight Glass 

Material:  ● Steinless Steel: CF8, CF8M, CF3, CF3M, Duplex Stainless Steel

Material:  ● Casting Steel: WCB, WC6, WC9, A105, LCB

Accessories: Pneumatic Actuators, Electric Actuators, Worm Gear, Manual Override, Limit Switch, Solenoid Valve

Standard: JB/GB, ANSI/API, JIS, DIN

Xidelong Production

We are equipped with CNC lathes, automatic machining centers, automatic MIG seal welding and automatic hard facing facility to reduce human error. Today equipment and technology along with a qualified training to our employees produce valves as required by international market.

Xidelong Testing

All our production is tested in accordance to the standard required.

We analyze the raw material at first. Any piece is verified in order to respect the required tolerance. Each valve must exceed the pressure test before it has been judged ready for delivery.