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Gb Flange, Wafer Butterfly Valve(Metal Seat, Soft Seat)

Short Description:

PRODUCT STANDARDS

■ Design standards: GB/T 12238
■ Face to Face: GB/T 12221
■ Flange end: GB/T 9113, JB/T 79, HG/T 20592
■ Test standards: GB/T 13927

SPECIFICATIONS

■ Nominal pressure: PN0.6,1.0,1.6,2.5,4.0MPa

■ Shell test pressure: PT0.9,1.5, 2.4, 3.8, 6.0MPa

■ Low-pressure closure test: 0.6MPa

■ Suitable medium: water, oil, gas, acetic acid, nitric acid

■ Suitable temperature: -29℃~425℃


Product Detail

Product Tags

Design standards

• Design and manufacturing specifications: API6D/BS 5351/ISO 17292/GB 12237
• Structure length: API6D/ANSIB16.10/GB 12221
• Test and Inspection: API6D/API 598/GB 26480/GB 13927/ISO 5208

Performance Specification

• Nominal pressure: (1.6-10.0)Mpa,(150-1500)LB,10K/20K
• Strength test:PT1.5PNMpa
• Seal Test: PT1.1PNMpa 
• Gas seal test: 0.6Mpa

Product Structure

singleimg (1)

ISO Law Mount Pad

singleimg (2)

ISO High Mount Pad

singleimg (3)

main parts and materials

Material Name

Carbon steel

Stainless steel

Body

WCB、A105

CF8、 CF3

CF8M、CF3M

Bonnet

WCB、A105

CF8、 CF3

CF8M、CF3M

Ball

304

304

316

Stem

304

304

316

Seat

PTFE、RPTFE

Gland Packing

PTFE/ PTFE / Flexible Graphite

Gland

WCB、A105

CF8

 


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