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Product type

Flange-connection fixed ball valves

Main parts and Materials

NO Accessory name Material
GB ASTM
1 Body WCB A2116-WCB
2 Spring 60Si2aMn AISI 9260
3 Sealing ring PTFE PTFE
4 Gasket PTFE PTFE
5 Blowoff screw  25 A105
6 "0" Ring Rubber Rubber
7 bottom cover 25 A105
8 Ccrew nial 35 A193-B7
9 Flx spindle 1Cr13 A276-410
10 Sliding bearing PTFE&stainless steel PTFE&stainless steel
11 Ball 1C18Ni9Ti SS304
12 Bonnet WCB A216-WCB
13 Seat 25 A105
14 Stem 1Cr33 A276-410
15 Stud 35CrMoA A193-B7
16 Nut 35 A194-2H
17 Cover 25 A105
18 Stuffing PTFE PTFE
19 Support WCB A216-WCB
20 Gland WCB A2116-WCB
21 Key 45 AISI C 1045

Technical Specification

Design Reference GB series API series
Design Standard GB/T12237 AP16D ANSI B16.34
Strucural length of flange-connecting GB/T12221 AP16D ANSI B16.10
Strucural Length(Welding) GB/T15188.1 AP16D ANSI B16.10
Connecting giange GB/T9113
JB/T79
Hg20592		 ANSI B16.5、B16.47
Butt-welding ends GB/T12224 ANSI B16.25
Test&inspection GB/T9092 AP16D AP1598

Test Pressure 

Pressure grade Test pressure(Mpa）
Nominal pressure Pound（Class） Shell test Sealing test
1.0 - 1.5 1.1
1.6 - 2.5 1.76
2.5 - 3.8 2.75
4.0 - 6.0 4.4
6.4 - 9.6 7.04
- 150 3.0 2.2
- 300 7.6 5.6
- 600 15.0 11.0
- 10K 2.4 1.5
- 20K 5.8 4.0

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