ductile iron gate valve

Resilient Seated Gate Valve, Cap operated, FBE Coated, Non Rising Stem​

How do we ensure finished product quality (FQC inspection)

1. Visual Inspection

2. Material Grade Measurement

3. Dimension Inspection

4. Roughness Detection

5. Roughness Detection

6. Leakage Test

NRS Resilient seated gate valve is a soft seal wedge to provide both side sealing function. The valve is designed with new technology for light operating. When the valve is fully opened, there will no clogging and no corrosion becuase full flow area.The rubber wedge has good resilient memory & long service life. It can be used extensively in all kinds of water supply & sewage, fire-fighting and function as an isolation valve.

Features:

• Body & bonnet are made of high grade ductile Iron GJS500-7

• Disc is designed with an abrasion resistant nylon guide which can help less opening or closing torgue and smooth during operation.

1. EPDM fully vulcanized

2. WRAS approved

• Forged stem provide stronger stem operation and less moving parts.

1. SS420 / 431

2. Platform provide better strength

• Disc is covered by high-grade rubber which complies with drinking water.

• High-tech rubber curing with precise geometry dimensions, more resilient & strong adhesive to ductile casting.

• The 4 O-ring stem seals are designed to prevent stem leakage. and provide replacement of the O-ring without disassambling of valve from mainline pipes.

• Both inside & outside are coated with epoxy resin powder.

• Manufacturing standard meets BS EN 1074-1, EN1074-2, BS 5163, BS EN 1171.

• F/F (Face to Face) meets the following standard: BS EN558-1.

• Bolts are protected by silicon glue.