Stainless Steel Soft Seated Valves manufacturer in India

Soft seated Gate Valve is made from ductile iron and is used in mainly water supply lines. The material is soft and can be used with ease with the pipelines. There are different types that are used in different industrial applications. The material is mostly GGG40 or GGG50 with flat body. The soft seated knife gate valve is used with waste water management systems. The knife shape is useful to cut through the high viscosity waste water during faster flows. There are also EPDM covered soft seat wedge gate valve types. These are used in drinking water applications as well. The valves come in different dimensions and sizes. The pressure numbers range as PN10 or PN16 for these valves in the water pipe lines. There are different types of body bonnet such as ductile iron, 500-15 and EN-GJS-400.

Ductile Iron Soft Seated Gate Valves

Ductile Iron Soft Seated Gate Valves

PN 10 knife gate valve

PN 10 knife gate valve

Soft Seat Wedge Gate Valve

Soft Seat Wedge Gate Valve


View A351 CF8 304 Soft Seated Gate Valve Dimensions, Cast Steel Soft Seat Wedge Gate Valve Manufacturers

The wedge can also be ductile iron, EPDM covered and other types. The handwheel of the Resilient Soft Seated Gate Valves can differ as cast iron GG25, EN-GJL-250 and so on. The stem of the valve can be stainless steel X20 X13 and the stem seat is an O-ring. The soft seated gate valve dimensions range differently based on the applications as well with the DN numbers ranging from 40 to 600 with diameters ranging from 150mm to 840mm. The weight of the valves vary from 8kg to 600kg depending on the size of the valve. The length and height of the valves also vary. The nominal pressure for these valves is 16 bars.

Soft seated Gate Valves Specification

Specifications
Ports: Single
Body Style: Non Rising
Size Range: DN.40 - 600MM
Temperature Range: < 80 °C
Pressure Ratings: PN1.0, PN1.6
Steam Rating: N/A
End Connections: Flanged
Body Materials: C.I/D.I
Seat/Gasket Materials: NBR-Rubber

PN 10 soft seated knife gate valve Materials

body-bonnet  ductile iron GGG40/50, EN-GJS-400/500-15
wedge  ductile iron GGG40/50, EN-GJS-400/500-15 EPDM covered
handwheel cast iron GG25, EN-GJL-250
stem stainless steel X20 CR13
stem seat o-ring
bonnet gasket  EPDM
painting  epoxy 250 mcr

PN 16 Soft seated Gate Valves Dimensions

DN L mm. H mm. D mm. Weight kg.
40 140 220 150 8
50 150 230 165 10
65 170 240 185 13
80 180 280 200 16
100 190 330 220 19
125 200 390 250 27
150 210 460 285 35
200 230 550 340 56
250 250 660 405 81
300 270 760 460 115
350 290 820 520 221
400 310 950 580 257
450 330 970 640 303
500 350 1120 715 363
600 390 1300 840 600

Dimensions Table of PN 10 Soft seated Gate Valves

DNLHDC
50178265165178
65190297185178
80203313200203
100229359220254
125254451250254
150267486285305
200292544340356
250330621395405
300356730445457

Nominal pressure of soft seat wedge gate valve

DN Nominal pressure Test pressure Mpa Max working pressure Mpa
mm BAR body seat 80°C
40-600 16 2,4 1,76 1,6

Ask for latest price list of Ductile Iron Soft Seated Knife Gate Valve, Ready stock to supply of PN 10 knife gate valve

Difference between metal seat valves and soft seat valves?

Metal Sheet Valves Requires grinding, hardening and other precision processing while Soft Seat valves are low processing accuracy, even free-processing

Working pressure of Metal Sheet Valves are Medium or high pressure above 3.5mpa While soft seat valves has Medium or low pressure

Soft seated ball valves working temperature

working temperature lower than 260℃

Leak testing of Soft seated Gate Valves

Valve Size, NPS All Resilient, Seated, Valves All Metal Seated Valves, (except Check Valves)
Liquid Test, (drops, min.) Gas Test, (bubbles, min.)
< 2 0 0 (1) 0 (1)
2 - 6 0 12 24
8 - 12 0 20 40
> 12 0 28 56
Valve Size, NPS All Resilient, Seated, Valves Metal Seated, Check Valves
Liquid Test, (drops, min.) Gas Test, (bubbles, min.)
< 2 0 (2) (3)
2 - 6 0 (2) (3)
8 - 12 0 (2) (3)
> 12 0 (2) (3)

Available Types of Soft seated Gate Valves

A351 CF8 304 Soft Seated Gate Valve

A351 CF8 304 Soft Seated Gate Valve

Cast Steel Soft Seat Wedge Gate Valve

Cast Steel Soft Seat Wedge Gate Valve

CF8M Stainless Steel Resilient Soft Seated Gate Valves

CF8M Stainless Steel Resilient Soft Seated Gate Valves

ASTM A351 CF8 Soft Seat Gate Valve

ASTM A351 CF8 Soft Seat Gate Valve

Stainless Steel Soft Seated Gate Valves

Stainless Steel Soft Seated Gate Valves

ASME B16.34 Soft Seated Gate Valves

ASME B16.34 Soft Seated Gate Valves

Soft Seat Material Physical Properties

Property NBR EPDM VITON Polyurethane
TENSILE Strength (kg/cm²) 50~250 500~200 225 400±0
Elongation(%) 100~500 100~500 425 600±0
Max Temp(℃) 140 140 200 120
Min Temp(℃) -25 -40 -10 -65
Abrasion Resistance Excellent Fair Good Excellent

Body Material of Soft seated Gate Valves

ITEM ASTM JIS
Body,  Bonnet Cast  Steel A216-WCA A216-WCB A216-WCC SCPH2
Cast  Iron A536 FCD450 FC200
Cast  Stainless  Steel A351-CF8 A351-CF8M A351-CF3 A351-CF3M A351-CK20 SCS 13A SCS 14A SCS 19A SCS 16A
Stem A479-304 A479-304L A479-316 A479-316L SUS 304 SUS 304L SUS 316 SUS 316L
Disc A240-304 A240-304L A240-316 A240-316L SUS 304 SUS 304L SUS 316 SUS 316L
Biggest CF8M Stainless Steel Resilient Soft Seated Gate Valves Supplier, Check ASTM A351 CF8M Soft Seat Gate Valve Pressure Rating

Features of Resilient Soft Seated Gate Valves

  • Zero Leakage even at high pressure with double sealing of soft seat and metal seat
  • Applies to all fluid lines including pure water, a mixture of sludge and water
  • Leakage protection is possible at all times as there is no foreign substances buildup on the bottom of the valve port.
  • Price is competitive as material requirements are low with narrow interfacial structure, and it is easy to install even in a narrow space. Reduced packaging and shipping costs due to its light weight.
  • Advantageous in cost reduction as it is possible to operate with a small driving force, so that a smaller specification actuator can be applied.
  • Reduced repair costs as valve seat, soft seat, can be removed and attached

Advantages of Soft seated Gate Valves

  • Metal seats can stand up to extreme flashing
  • high temperatures up to and exceeding 1,000° F
  • ideal for high erosion or corrosion applications

Disadvantages of soft seated knife gate valve

  • High production cost
  • If need replace the valve seat, normally required for overall grinding, the field maintainment is not convenient.

Application of soft seat wedge gate valve

  • natural gas industry
  • chemical storage
  • slurries
  • normal liquid and gases
Dealer of Stainless Steel Soft Seated Gate Valves, Stockholder of ASME B16.34 Soft Seated Gate Valves

Service Temperature of Soft Seal Sluice Valve

Service Temperature 150℃