FOURESS KNIFE GATE VALVES

Product Overview

* Higher Sizes / Pressure available on request

Introduction

Introduction

FOURESS KNIFE GATE VALVES

THE SHARP SOLUTION TO HEAVY FLUID SHUT-OFF PROBLEMS

Sludges, Slurries, Powders, Problem Fluids challenge today’s Power, Mining & Steel, Pulp and Paper, Chemical, Textile and Sewage plants. FOURESS Knife Gate Valves are specially designed and manufactured to meets this challenge. A Precision- buffed knife plate cuts even the heaviest Sludges sharply, without erosion One piece trim provides corrosion resistant, wear resistant, high –performance shut off over a long service life. Fouress compact, light weight, Knife gate valves are available in wide range of material and trim options to suit various application.

Over the years, we have supplied more than 30,000 Knife Gate Valves to various customers in India and abroad to Water, Waste Water, Paper, Pulp, Sugar and Power Plants including FGD plants both in standard and custom engineered designs. Out of these nearly 10,000 valves have been supplied for projects outside India.

Fouress also has the distinction of having supplied very large size Knife Gate Valves to two major Waste Water Treatment Plants in Singapore and Hong Kong. In Singapore, we supplied 2 Nos. Bonneted Knife Gate Valves fabricated using SS 316 L material in 3000mm size to Public Utility Board (PUB), Singapore for their Changi Waste Water Reclamation plant in the year 2004-05.

We have also supplied 2 Nos. 3600mm and 2 Nos. 3000mm Knife Gate Valves with super Duplex Steel Liners to Harbour Area Treatment Scheme (HATS Projects – Stage 2 A) in Hong Kong. These two 3600mm Knife Gate Valves are perhaps the largest Knife Gate Valves supplied by any manufacturer in the world.

Features

Features

  1. Non corrosive body

The stainless steel inner body is welded to the cast iron gland for lined valves.  Fully Stainless steel option for the body is also available in both cast and fabricated designs.

  1. Precision buffed stainless steel Knife plate

The stainless steel knife plate is precision buffed for leak tight shutoff. Its knife like edge cuts off and shuts off even heavy high viscosity fluids.

  1. A choice of three different seat rings

In addition to the standard stainless steel seat ring , Rubber and Teflon seat rings are available as options.. The soft seal  (Rubber/ Teflon) can be replaced in-situ.  Bidirectional sealing is also available on request.

  1. Plane valve seat to resist build-up

The plane surface of the valve seat has no recesses to harbor heavy fluid deposits that could build up and swamp the valve.

  1. Bonneted option is available on request.
  1. Leak tight multilayer gland packing

The gland packing is Teflon / Teflon impregnated / Vegetable yarn layered with molded rubber. This chemical resistant packing set provides total sealing of the gland.

  1. Bosses for positive seating

Two bosses are welded to the valve seat . These bosses press the knife plate strongly against the side of the seat ring for bubble tight shut off.

  1. Smooth Hand Wheel Opening/Closing

The double threaded screw on the stem makes opening /closing smooth ad speedy.

Design Specifications - 336D

PRODUCT : KNIFE GATE VALVE -336 D

 

SIZE Details
50 mm to 600 mm ( 2″ to 24″) Designed as per AWWA C520/MSS SP-81
Face to Face Dimension up to 16 Bar as per AWWA C520/MSS SP-81
Drilling Standard: ANSI B 16.5 (# 150) ASME B 16.47 (# CL 150 ) BS EN 1092 (PN 10)
Max.Operating Pressure 6 /10/16 Bar (Higher pressure on demand)
Material: Body: Cast Iron – IS 210 Gr. FG 260, BS 1452 Gr. FG 260, ASTM A126 CL. A/B
Ductile Iron – IS 1865 Gr. 500/7, BS 278Gr. Gr. 500/7, ASTM A536 Gr. 65-45-12
Cast Carbon steel -ASTM A 216 Gr. WCB
Body Liner : Stainless Steel ASTM A 240 Type 304/316/316L Duplex Stainless Steel:UNS S32205/32750 Other Materials on request
Knife Gate : Stainless Steel ASTM A 240 Type 304/316/316L Duplex Stainless Steel:UNS S32205/32750 Other Materials on request
Stem : Stainless Steel ASTM A 479 Type 304/316/316L Duplex Stainless Steel:UNS S32205/32750 Other Materials on request
Packing: Teflon /Teflon Impregnated /Vegitable Yarn layered with moulded rubber
Rate of Leak at seat W.T.P 2.8 Bar : Rubber ( NBR/EPDM) seated 0 cc/min/in Metal seated 40 cc/min/in
Operator : Manual/Electric/Pneumatic/Hydraulic

* Higher Sizes / Pressure available on request

Design Specifications - 336L

Design Specifications KNIFE GATE VALVE -336 L

 

SIZE Details
50 mm to 600 mm ( 2″ to 24″) Designed as per AWWA C520/MSS SP-81
Face to Face Dimension up to 16 Bar as per AWWA C520/MSS SP-81
Face to Face Dimension up to 10 Bar as per AWWA C520/MSS SP-81
Drilling Standard: ANSI B 16.5 (# 150) ASME B 16.47 (# CL 150 ) BS EN 1092 (PN 10)
Material: Body : Stainless Steel – ASTM A 351 GR. CF 8/ CF8M/CF3M
Knife Gate : Stainless Steel ASTM A 240 Type 304/316/316L Duplex Stainless Steel:UNS S32205/32750 Other Materials on request
Stem : Stainless Steel ASTM A 479 Type 304/316/316L Duplex Stainless Steel:UNS S32205/32750 Other Materials on request
Packing: Teflon /Teflon Impregnated /Vegitable Yarn layered with moulded rubber
Seals: Nitrile Rubber/EPDM /Viton/ Teflon
Max.Operating Pressure 10 Bar
Max.Operating Temperature : Up to 300 Deg. C . ( Applications for higher temperature on request)
Rate of Leak at seat W.T.P 2.8 Bar : Rubber ( NBR/EPDM) seated 0 cc/min/in Teflon seated 4 cc/min/in Metal seated 40 cc/min/in
Operator : Manual/Electric/Pneumatic/Hydraulic

* Higher Sizes / Pressure available on request

Design Specifications -CUSTOM

RUBBER LINED SLURRY KNIFE GATE VALVES FOR FGD APPLICATION

SIZE Details
700 mm to 1500 mm ( 28″ to 60″) (Higher sizes on request) Design standard: As per Manufacturer standard
Face to Face Dimension: As per Manufacturer stanadard
Drilling Standard: AWWA C 207 CL. D
Material:Body: Ductile Iron – IS 1865 Gr. 500/7,
Carbon steel -ASTM A 216 Gr. WCB; IS 2062 E250 Gr. Br.
Knife Gate : Duplex Stainless Steel:UNS S32205/32750 Other Materials on request
Rubber lining: EPDM
Stem : Stainlesss Steel : ASTM A479 Type 304 /316/410 Other Materials on request
Packing: Teflon Impregnated Synthec Fibre +Rubber
Max.Operating Pressure : 5 Bar
Max.Operating Temperature : Up to 120 Deg. C.
Rate of Leak at seat : Tight shut off
Operator : Manual/Electric/Pneumatic/Hydraulic

* Higher Sizes / Pressure available on request

LARGE SIZE KNIFE GATE VALVES IN CAST /FABRICATED CONSTRUCTION

 

SIZE Details
700 mm to 1500 mm ( 28″ to 60″) (Higher sizes on request) Designed as per AWWA C520 / MSS SP-81
Face to Face Dimension as per AWWA C520 / MSS SP-81 up to 900 mm . For above 900 mm size , the Face to Face dimensions are as per Fouress Standard.
Drilling Standard: ANSI B 16.5 (# 150) ASME B 16.47 (# CL 150 ) BS EN 1092 (PN 2.5/6/10/16)
Material: Body : Cast Iron – IS 210 Gr. FG 260, BS 1452 Gr. FG 260, ASTM A126 CL. A/B
Ductile Iron – IS 1865 Gr. 500/7, BS 278Gr. Gr. 500/7, ASTM A536 Gr. 65-45-12
Carbon steel -ASTM A 216 Gr. WCB : ASTM A 36 Other materials on request
Body Liner : Stainless Steel ASTM A 240 Type 304/316/316L Duplex Stainless Steel:UNS S32205/32750 Other Materials on request
Knife Gate : Stainless Steel ASTM A 240 Type 304/316/316L Duplex Stainless Steel:UNS S32205/32750 Other Materials on request
Stem : Stainless Steel ASTM A 479 Type 304/316/316L /410 Duplex Stainless Steel:UNS S32205/32750 Other Materials on request
Packing: Teflon /Teflon Impregnated /Vegitable Yarn layered with moulded rubber
Seals: Nitrile Rubber/EPDM /Teflon
Max.Operating Pressure : 6 /10/16 Bar (Higher pressure on request)
Rate of Leak at seat W.T.P 2.8 Bar : Rubber seated (NBR/EPDM) : 0 cc/min/in Metal to Metal seated 40 cc/min/in
Operator : Manual/Electric/Pneumatic/Hydraulic

* Higher Sizes / Pressure available on request

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KNIFE GATE VALVES

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