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AS2129 Table D 10" Ductile Iron Gate Valve , Resilient Seated Gate Valve

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AS2129 Table D 10" Ductile Iron Gate Valve , Resilient Seated Gate Valve
Latest company news about AS2129 Table D 10" Ductile Iron Gate Valve , Resilient Seated Gate Valve

AS2129 Table D Ductile Iron Gate Valve , Resilient Seated Gate Valve


What is Gate Valve?


A gate valve can be defined as a type of valve that used a gate or wedge type disk and the disk moves perpendicular to flow to start or stop the fluid flow in piping.

A gate valve is the most common type of valve used in any process plant. It is a linear motion valve used to start or stop fluid flow. In service, these valves are either in a fully open or fully closed position.

When the gate valve is fully open, the disk of a gate valve is completely removed from the flow. Therefore virtually no resistance to flow. Due to this very little pressure drops when fluid passes through a gate valve.

To achieve proper sealing, when the valve is fully closed, 360° surface contact is required between disk and seats.

Gate valves should not be used for regulation or throttling of flow because accurate control is not possible.

The high velocity of the flow in the partially open valve may cause erosion of the disc and seating surfaces

and also creates vibration and noise.


Resilient Seated Gate valve, Handwheel operated, ductile iron body (FBE coated internally/externally),

flanged ends to AS4087 B5 (AS2129 Table D) class 16- approved to AS2638.2


Sizes 2″ → 16″ (DN50→ DN400)


* Options: Key adaptor, Gearbox, ISO mounting flange for actuation


Valve Type CS / SS GATE VALVE - FL / BW
Design Std BS EN ISO 10434 [BS 1414] / API 600 / API 602 / API 603/ASME B16.34
Size Range 40 DN to 400 DN [1 1/2” to 16”]
Body [CS - ASTM A 216 Gr. WCB] [SS - ASTM A 351 Gr.CF8 / CF8M]
Trim AISI 410 / 304 / 316
Seat / Wedge 13% Cr. Steel / AISI 410 / 304 / 316
Design Features Bolted Bonnet, OS & YT, HW & Gear operated
Prorating ASME - Class 150 / 300 / 600
Face to Face ASME B 16.10 / EN 558 -1 / API 6D
End Connection Flanged ASME B16.5, CLASS 150 / 300 / 600
Butt weld ASME B16.25
Testing Std. BS EN 12266 - 1 [BS 6755-1] / API 598
Optional Lantern Ring / indicator & Locking Device/ Renewable Seat / Stellite Hard facing / Jacketed Provision / RTJ Flanges / By Pass Arrangement / Higher Sizes / Special MOC: Austenitic and Duplex Stainless Steels


Types of Gate Valves


There are three ways to classify the gate valve.

  1. Types of Disk

    1. Solid taper wedge

    2. Flexible wedge

    3. Split wedge or Parallel disks Valve

  2. Types of Body Bonnet Joint

    1. Screwed Bonnet

    2. Bolted-Bonnet

    3. Welded-Bonnet

    4. Pressure-Seal Bonnet

  3. Types of Stem movement

    1. Rising Stem or OS & Y Type (Outside Stem and Screw Type)

    2. Non-rising Stem type

Gate Valve Applications

  • Gate valves are used in almost all fluid services such as air, fuel gas, feedwater, steam, lube oil, hydrocarbon, and all most any services.

  • Some special gate valve is used in slurry and powder product also such as knife gate valve

Advantages of Gate Valve

  • Gate valve provides good

  • Pressure drop during operation is very less.

  • Most of the gate valve can be used as bi-directional

  • They are suitable for high pressure and temperature application and required less maintenance


For water, sewage and neutral liquid applications Valve designed for use up to 70°C Where applicable;

AS 4020 compliance, max temp = 40°C Note: Always observe pipe material recommended operating temperatures



Gland flange, Ductile iron, 500-7 to AS 1831 body and bonnet


Coating Fusion bonded epoxy resin - Internally and externally to AS 4158


Stem Stainless steel 431


Stem sealing NBR wiper ring, 2 NBR O-rings


Wedge Ductile iron, 500-7 to AS 1831, core fully vulcanised with EPDM rubber, with integral wedge nut of

dezincification resistant brass, CZ 132 to AS 2345


Bushing Polyamide


Thrust collar and Dezincification resistant brass, stem seal box CZ 132 to AS 2345


Bonnet bolts DN50 - DN250 Stainless steel 304, sealed with hot melt DN300 - DN400 Grade 12.9, sealed with hot melt


Gland flange Stainless steel 316 bolts


Bonnet gasket EPDM rubber


Handwheel Ductile iron to AS 1831



Hydraulic test to AS 2638.2: Seat: 16 bar Body: 24 bar Operating torque test


Optional extras:

Stem cap Flange gasket kits ISO flanging for actuation Gearbox User specified flange drilling


AS2129 Table D 10


Pub Time : 2021-12-14 16:57:12 >> News list
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