Length of structure

Inner Threaded coupling end

GB/T15188.3

Outer Threaded coupling end

GB/T15188.4

Inner Threaded coupling end

GB/T7073

Outer Threaded coupling end

JB/T1752, JB/T1754, JB/T1755

Testing and inspection

JB/T9092

Pressure rating

Nominal pressure (PN)

1.6

2.5

4.0

Test pressure 
(MPa)

Body test

2.4

3.75

6.0

Seal test

1.76

2.75

4.4

Operating temperature

-29℃-300℃

Medium

water, oil and steam

No.

Name

Materials

GB

ASTM

1

Body

WCB
CF8, CF8M, CF3, CF3M

A216-WCB, 
A351-CF8, CF8M, CF3, CF3M

2

Cap

WCB
CF8, CF8M, CF3, CF3M

A216-WCB, 
A351-CF8, CF8M, CF3, CF3M

3

Body

1Cr13, 0Cr18Ni9, 1Cr18N12Mo2Ti

A276-410, 304, 316, 304L, 316L

4

valve handle

1Cr13, 0Cr18Ni9, 1Cr18N12Mo2Ti

A276-410, 304, 316, 304L, 316L

5

seal ring

Nylon , PPL , PTFE, RTFE

PTFE, PTFE, Nylon , PPL