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DN80 PN25 Cast Iron Flanged Gate Valve DIN Resilient Bolted Steam

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DN80 PN25 Cast Iron Flanged Gate Valve DIN Resilient Bolted Steam
Latest company news about DN80 PN25 Cast Iron Flanged Gate Valve DIN Resilient Bolted Steam

DN80 PN25 Cast Iron Flanged Gate Valve DIN Resilient Bolted Steam

 

Quick Details

 

Technical Requirement:

1. Design and Manufacture: DIN 3352;

2. Face to Face: DIN 3202 F4/F5;

3. Flange End: DIN 2532 PN10/16;

 

Main parts and materials

 

Parts Name Materials
Body,Bonnet Cast Iron
Disc GGG50+NBR/EPDM
Stem 2CR13
Seat Ring GGG50

 

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.

 

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

 

PN DN Size(mm)
L D D1 D2 B N-φ H
1.6MPa 25 160 115 85 65 14 4-14 275
32 180 135 100 78 16 4-18 280
40 200 145 110 85 16 4-18 330
50 230 160 125 100 16 4-18 350
65 290 180 145 120 18 4-18 370
80 310 195 160 135 20 8-18 400
100 350 215 180 155 20 8-18 415
125 400 245 210 185 22 8-18 460
150 480 280 240 210 24 8-23 510
200 550 335 295 265 26 12-23 710
250 650 405 355 320 30 12-25 786
300 750 460 410 375 30 12-25 925

 

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

Features:

 

● Flat-bottomed seat traditional gate valves are usually deposited in the bottom groove of the valve due to external objects

such as stone, wood, cement, paper, debris, etc., after flushing the pipe with water. Cause cannot close tightly and form slack

phenomenon, soft-sealing gate valve using the same as the pipe at the bottom of the flat design, not easy to cause debris deposition,

the fluid flow unimpeded, the whole package glue valve plate is made of high quality rubber, within the whole outsourcing, domestic

first-class rubber vulcanization technology make the valve plate after vulcanization can ensure accurate geometry size, and rubber

and nodular cast iron gate connecting firm, not easy to fall off and elastic memory preferred.

● The corrosion resistant valve body is painted with powder and epoxy resin to prevent corrosion and rust of the valve body, and can

be used in sewage system.

● Not easily broken into traditional cast iron.

 

DN80 PN25 Cast Iron Flanged Gate Valve DIN Resilient Bolted Steam 0

 

 

 
Pub Time : 2022-01-08 17:08:02 >> News list
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