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Big size electric gate valve

Products > Gate valve > Big size electric gate valve

Big size electric gate valve

Model: Z941H
Nominal diameter: DN40 ~ 1200mm
Nominal pressure: PN1.6 ~ 16.0MPa
Working temperature: ≤-29 ℃ ~ 550 ℃
Main material: WCB, ZGlCr5MO, ZGlCrl8Ni9Ti, ZG00Crl7Nil4M02
Applicable medium: water, oil, steam, and acids, bases, ammonia, urea, sulfur-containing natural gas
operation: manual, gear transmission, electric, pneumatic
connection size: GB / T12221, JB79
inspection and testing: JB / T9092
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1, Main purpose of big size electric valve

High and medium pressure flanged gate valve for the nominal pressure PN1.6 ~ 16.0MPa, the working temperature ≤-29 ℃ ~ 550 ℃ of petroleum, chemical, hydraulic, thermal power plant in various systems of pipeline, cut off or connected to the pipeline medium . Suitable media: water, oil, steam, and acid, alkali, ammonia, urea, sulfur and other natural gas. Mode of operation are: manual, gear transmission, electric, pneumatic and so on.
 

2, Big size electric gate valve application specifications

Design and manufactureGB / T12234
Connector sizeStructure lengthGB / T12221
Flange sizeJB79
Inspection and testingJB / T9092
materialCarbon steelGB / T12229
stainless steelGB / T12230
SignGB / T12220
AvailabilityJB / T7928

 

3, Big size electric valve structure and characteristics

1, Selection of sophisticated, in line with relevant standards at home and abroad, the overall high-quality materials. 
2, in line with the requirements of advanced standards at home and abroad, reliable sealing, excellent performance, handsome in appearance. 
3, advanced and reasonable pairs of seal pair, gate and valve seat sealing surface with different hardness Stellite (Stellite) cobalt-based hardfacing welded together, reliable sealing, high hardness, wear resistance, high temperature resistance, corrosion resistance , Good scratch resistance, long life. 
4, the stem by quenching and nitriding surface treatment, good corrosion resistance, scratch resistance and wear resistance. 
5, the use of wedge-type flexible gate structure, setting large diameter thrust bearings, friction is small, and with a collision manually, opening and closing easily. 
6, Can adopt all kinds of pipe flange standard and flange sealing surface to meet various engineering needs and user requirements.

 

4, Big size electric valve parts and materials and the main purpose

BodycapValve plateSeatValve stemfillerSuitable mediaApplicable temperature (≤ ℃)
WCBWCB + D507MOD5772Crl3Flexible graphiteWater, oil, steam425
ZGlCr5MOZGlCr5M0 + Stellite121Crl8Ni9 + Stellite625Cr2M01VAFlexible graphiteWater, oil, steam550
ZGlCrl8Ni9TiCrl a Ni21Crl8Ni9 + Stellite61Crl8Ni9TiPTFENitric acids, bases200
ZG00Crl7Nil4M02316L + Stellite12316L + Stel1ite6316LPTFEUrea, Methylammonium solution, Phosphoric acid200

 

5, Big size electric gate valve main dimensions

Convex flange 
RF 
Z940H 
Z940Y 
Z940W 
Z940F 

Z941H 
Z941Y 
Z941W 
Z941F 

16C 
16P 
16R 
16I
1.6MPa
DNLDD1D2bZ-φdHDenso models
4020014511085164-φ18595DZW10
50250160125100164-φ18653DZW10
65265180145120184-φ18665DZW10
80280195160135208-φ18725DZW15
100300215180155208-φ18787DZW20
125325245210185228-φ18934DZW20
150350280240210248-φ23955DZW20
2004003352952652612-φ231105DZW30
2504504053353203012-φ251343DZW30
3005004604103753012-φ251516DZW45
3505505204704353416-φ251678DZW90
4006005805254853616-φ301849DZW120
4506506405855454020-φ301937DZW120
5007007056506084420-φ342234DZW180
6008008407707184820-φ412432DZW250
7009009108407885024-φ412489DZW250
800100010209508985224-φ412643DZW350
9001100112010509985428-φ412935DZW500
100012001255117011005628-φ483410DZW500
120013001485139013255832-φ543850DZW500
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