Bellow Seal Forged Gate Valve

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Bellow Seal Forged Gate Valve

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Teji Valve manufactures forged steel bellow sealed gate valves in three kinds bonnet design—Bolted Bonnet, Welded Bonnet and Pressure Sealed Bonnet.

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Product Description

PRODUCT INTRODUCTION
Teji Valve manufactures forged steel bellow sealed gate valves in three kinds bonnet design—Bolted Bonnet, Welded Bonnet and Pressure Sealed Bonnet.With the rapid development of chemical industry, nuclear industry and other modern industries, the number of pipes with radioactive media is increasing. Valves used in these lines and installations have special requirements for leaky seals, the use of general packing sealing device has been unable to meet the requirements. Therefore, a bellows stem seal is required.The opening and closing part of this bellow seal forged gate valve is a plug shaped disc with a flat or conical sealing surface and the disc moves in a straight line along the center line of the fluid. The  bellow seal forged gate valve is often used in situations where the stem seal is required to be tight, such as in high vacuum applications and in the nuclear industry.
CONSTRUCTION FEATURES
  • Forged Steel, Outside Screw and Yoke, Rising Stem;
  • Non-Rising Handwheel, Integral Backseat;
  • Solid Wedge, Renewable Seat Rings, Spiral Wound Gasket;
  • Reduced Bore or Full Port;
  • Socket Welded, Threaded, Butt Welded, Flanged End.
STRUCTURE

Bellow Seal Forged Gate Valve desc

DIMENSIONS (MM) AND  WEIGHTS (KG)
NPSConv.3/8″1/2″3/4″1″1-1/4″1-1/2″2″
Full3/8″1/2″3/4″1″1-1/4″1-1/2″
L797992111120152172
H(OPEN)220220225244321321347
W100100100125160160180
WeightsBolted3.23.04.87.911.016.825.2
Welded3.02.84.87.09.613.520.2
DATA TABLE
NO.Part Name   CS to ASTM    AS to ASTM                     SS to ASTM
     Type A105 Type A182 F22Type A182 F304Type A182 F316(L)
1Body         A105      A182 F22    A182 F304(L)    A182 F316(L)
2Disc      A276 420      A276 304    A276 304(L)    A276 316(L)
3Gasket         Corrugated SS + graphite                       SS + PTFE
4Bonnet Bolt       A193 B7      A193 B16      A193 B8  A193 B8M
5Stem       A182 F6     A182 F304    A182 F304(L)  A182 F316(L)
6Bellow Pipe                                                        SS
7Bonnet         A105     A182 F22    A182 F604(L)  A182 F316(L)
8Stem Packing               Flexible Graphite                          PTFE
9Pin                   A276 420                     A182 F304
10Gland                   A276 420                     A182 F304
11Gland Eyebolt      A193 B7      A193 B16     A193 B8     A193 B8M
12Gland Flange                   A216 WCB                     A351 CF8
13Gland NutA194 2HA194 4       A194 8      A194 8M
14Bearing Washer                                                        SS
15Yoke Nut                                                    A276 410
16Nameplate                                                        SS
17Handwheel                                                     A197
18H.W.Nut     A194 2H      A194 4      A194 8    A194 8M
Suitable Medium    W.O.G.etc    W.O.G.etc             HNO3,CH3OOH etc
Suitable Temp.-29~425 deg C-29~550 deg C                -29~180 deg C

NOTE: Other materials are available upon request.

APPLICATION STANDARD
  • API 602, ASME B16.34, BS 5352
  • Testing according to API 598
  • Marking to MSS SP25
  • Socket Welded Ends to ASME B16.11
  • Screwed Ends to ASME B1.20.1
  • Butt Welded Ends to ASME B16.25
  • Flanged Ends to ASME B16.5

Quality Assurance

IMPROVEMENTS:

  1. Set up a trained and standardized Quality Control technician Team.
  2. With our computer managements system to analyze the data, find out the weak link of management, improve the quality and efficiency, and reduce the waste in the process.
  3. Through the computer system to make information transparent to customers, customers can master the order status and product related information in real time.
  4. Advance Machines: take advanced technology and reliable equipment to ensure machining accuracy and long-term stable production capability.
quality ass

Any Questions? Contact Us

Get In Touch With Us 24/7

Our Contacts

Office

Anfeng Industrial Zone, Oubei Town, Yongjia County, Zhejiang Province

E-mail

teji@teji-valve.com

HotLine

+86-0577-57799998

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Welcome to our website. If you have any requests or suggestions, please feel free to email us at teji@teji-valve.com or use the following enquiry form. Please allow us to provide you with the best service.
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Teji Valve Group Co., Ltd.
Teji Valve Group Co., Ltd.

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