info@welcovalve.com
TEL: 86-577-67279881
FAX: 86-577-67279880
+86-15067717767
Skype: welcovalve
20CrMoV electric gate valve
Product Description
Rising stem, Flexible Wedge
Pressure Seal Bonnet, Threaded or welded seat ring
Also body materials available ASTM A216 WCB, A217 WC6, A351 CF8, A351 CF8M,
A351 CF3, A351 CF3M, A351 CN7M
Standards compliance
Design and Manufacture: ANSIB16.34, API600, API6D, API603, BS1414
Face to face (end to end): ANSIB16.10, API6D
Flanged connection: 2"~24"to ANSIB16.5, 22", 26"~36"to MSS-SP-44 to API605 on Request
Test and inspection: API598, API6D
Butt welded end: ANSIB16.5
A. Anti-friction ball thrust bearing: Reduces friction between mating parts to ensure smooth operation
B. Grub screw: Secures yoke nut in the bonnet
C. Grease nipple: Supplies lubricant to the mating parts
|
NO. |
Part name |
WCB |
LCB |
WC6 |
WC9 |
C5 |
C12 |
CF8 |
CF8M |
|
1 |
Body |
A216 Gr WCB |
A352 Gr LCB |
A271 Gr WC6 |
A271 Gr WC9 |
A217 Gr C5 |
A217 Gr C12 |
A351 Gr CF8 |
A351 Gr CF8M |
|
2 |
Bonnet |
A216 Gr WCB |
A352 Gr LCB |
A271 Gr WC6 |
A271 Gr WC9 |
A217 Gr C5 |
A217 Gr C12 |
A351 Gr CF8 |
A351 Gr CF8M |
|
3 |
Gasket |
Spiral wound/Soft lron |
Spiral wound/Soft lron |
Spiral wound/SS304 |
Spiral wound/SS304 |
Spiral wound/Soft lron |
Spiral wound/Soft lron |
Spiral wound/SS304 |
Spiral wound/SS316 |
|
4 |
Gland Packing |
Graphite |
Graphite |
Graphite |
Graphite |
Graphite |
Graphite |
Graphite |
Graphite |
|
5 |
Bolt and nut |
A193 Gr B7/A194 Gr 2H |
A320 Gr L7/A194 Gr 4 |
A193 Gr B16/A194 Gr 4/7 |
A193 Gr B16/A194 Gr 4/7 |
A193 Gr B16/A194 Gr 4/7 |
A193 Gr B16/A194 Gr 4/7 |
A193 B8/A194 8 |
A193 B8M/A194 B8 |
|
NO. |
Part name |
Material |
|
6 |
Wedge |
Material see body |
|
7 |
Seat ring |
CS+SS/SS/SS+STL |
|
8 |
Stem |
Stain less steel |
|
9 |
Back seat |
Stain less steel |
|
10 |
Gland |
Stain less steel |
|
11 |
Gland flange |
Carbon steel/equivalent to body material |
|
12 |
Stem nut |
A 439-D2/cu-alloy |
|
13 |
Pin |
Carbon steel/stainless steel |
|
14 |
Eye bolt and nut |
A 193 B7/A194 2H~A193 B8/A194 8 |
|
15 |
Yoke nut |
Carbon steel/SS |
|
16 |
Hand wheel |
Malleable lron/cast steel/ ductile lron/fabricated steel |
|
17 |
Hand wheel nut |
Carbon steel |
|
18 |
Grub screw |
Carbon steel |
|
19 |
Grease nipple |
Brass |