Original
By certification 
Product Description：
Features:
Material: A105N, LF2 QT,F11 CL.2,F22 CL.3, F304, F316
Size Range: 1"~20"
Pressure Rating: ASME CL150, 300, 600, 900, 1500, 2500
Temperature Range: -29°C~425°C
Design Description: Butt Welded Ends
Applicable Standards:
Butt welding ends: ASME B36.10M, ANSI B16.25
Face to face: ANSI B16.10
Marking: MSS SP25
Inspection and test: API 598
Trim Material TO API600
Seating Code |
Body Seat Surface Part NO.2 |
Wedge Seat Surface Part No.3 |
Stem Part No.4 |
Backseat Surface Stuffing Box Part No.5 |
1 |
F6 |
F6 |
F6 |
F6 |
2 |
F304 |
F304 |
F304 |
F304 |
5 |
Stellie |
Stellie |
F6 |
F6 |
8 |
Stellie |
F6 |
F6 |
F6 |
9 |
Monel |
Monel |
Monel |
Monel |
10 |
F316 |
F316 |
F316 |
F316 |
13 |
Alloy 20 |
Alloy 20 |
Alloy 20 |
Alloy 20 |
Standard Material Specifications
No |
Part Name |
Carbon Steel |
Alloy Steel |
Stainless Steel |
|||||
WCB |
WC6 |
WC9 |
C5 |
CF8 |
CF8M |
CF3 |
CF3M |
||
1 |
Body |
A216 WCB |
A217 WC6 |
A217 WC9 |
A217 C5 |
A351 CF8 |
A351 CF8M |
A351 CF3 |
A351 CF3M |
2 |
Seat Ring |
A105 |
A182 F11 |
A182 F22 |
A182 F5 |
A182 F304 |
A182 F316 |
A182 F304L |
A182 F316L |
3 |
Disc |
A105 |
A182 F11 |
A182 F22 |
A182 F5 |
A182 F304 |
A182 F316 |
A182 F304L |
A182 F316L |
4 |
Stem |
A182 F6 |
A182 F304 |
A182 F304 |
A182 F316 |
A182 F304L |
A182 F316L |
||
5 |
Disc Nut |
A182 F6 |
A182 F304 |
A182 F304 |
A182 F316 |
A182 F304L |
A182 F316L |
||
6 |
Cap |
SS Spiral Wound/graphite or SS Spiral Wound/PTFE |
|||||||
7 |
Body Seal |
Flexible Graphite+316 |
|||||||
8 |
Adjustment Gasket |
F6 |
F6 |
F316 |
|||||
9 |
Stem Packing |
||||||||
10 |
Gland Nut |
A194 2H |
A194 8 |
||||||
11 |
Gland Eyebolt |
A194 B7 |
A193 B8 |
||||||
12 |
Pin |
Carbon steel or Stainless steel |
|||||||
13 |
Cap Nut |
Carbon steel or Stainless steel |
|||||||
14 |
Gland |
A182 F6 |
A182 F304 |
A182 F316 |
A182 F304L |
A182 F316L |
|||
15 |
Gland Flange |
A216 WCB |
A351 CF8 |
||||||
16 |
Yoke |
A216 WCB |
A351 CF8 |
||||||
17 |
Stem Nut |
A439 D2 or B148-952A |
|||||||
18 |
Screw |
Carbon steel |
|||||||
19 |
Handwheel |
Ductile Iron or carbon steel |
|||||||
20 |
Name plate |
Stainless steel or Aluminum |
|||||||
21 |
Washer |
Carbon steel |
|||||||
22 |
Nut |
Carbon steel or Stainless steel |
|||||||
Test Pressure to API 598
Class |
Shell Test |
Back Seat |
Seat Test |
Gas Test |
150 |
3.0 Mpa |
- |
2.2 Mpa |
0.6 Mpa |
300 |
7.8 Mpa |
- |
5.8 Mpa |
0.6 Mpa |
600 |
15.4 Mpa |
- |
11.4 Mpa |
0.6 Mpa |
900 |
24.0 Mpa |
- |
17.6 Mpa |
0.6 Mpa |
1500 |
37.5 Mpa |
- |
27.5 Mpa |
0.6 Mpa |
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