American standard bellows stop valve is suitable for the nominal pressure of CLASS150-900LBS, the working temperature of -29 ~ 350℃ petroleum, chemical, pharmaceutical, fertilizer, power industry and other working conditions of the pipeline, cut off or connect the pipeline medium.
Product features:
1, the product structure is reasonable, reliable sealing, excellent performance, beautiful shape;
2, sealing surface surfacing Co based cemented carbide, wear resistance, corrosion resistance, good friction performance, long service life;
3, the valve stem tempering and surface nitriding treatment, has good anti-corrosion and anti-friction performance;
4, double seal, more reliable performance;
5, valve stem lifting position indication, more intuitive;
6, parts material, flange and butt welding number size can be reasonably selected according to the actual working conditions or user requirements to meet various engineering needs.
[Product performance specification] :
Nominal pressure (LB)
Shell test pressure (MPa)
Seal test pressure (MPa)
Applicable temperature (℃)
Use medium
150
3.0
2.2
350 ℃ or less
Water, steam, oil, etc
300
7.5
5.5
600
15.0
11.0
900
22.5
16.5
【 Product parts materials 】 :
Serial number
name
material
1
Valve body
ASTM A216-WCB ASTM A217-WC1, WC6, WC9, C5 ASTM A351-CF8, CF8M, CF3, CF3M
2
Valve clack
F6a ASTM A182-F22 ASTM A182-F304, F316, F321, F304L, F316L
3
Split ring
F6a ASTM A182-F22 ASTM A182-F304, F316, F321, F304L, F316L
4
Flap cover
F6a ASTM A182-F22 ASTM A182-F304, F316, F321, F304L, F316L
5
Valve stem
F6a ASTM A182-F22 ASTM A182-F304, F316, F321, F304L, F316L
6
gasket
Flexible graphite + stainless steel
7
bonnet
ASTM A216-WCB ASTM A217-WC1, WC6, WC9, C5 ASTM A351-CF8, CF8M, CF3, CF3M
8
Bellows assembly
ASTM A182-F304, F316, F321, F304L, F316L
9
filler
Flexible graphite
10
Packing gland
ASTM A216-WCB ASTM A217-WC1, WC6, WC9, C5 ASTM A351-CF8, CF8M, CF3, CF3M
11
Stem nut
Copper alloy
12
Hand wheel
ASTM A536 Gr.60-40-18, A216-WCB
13
Locating plate
45, WCB, 304, 316, 304L, 316L
14
Stud bolt
ASTM A193-B7, A320-B8, A193-B8M
15
Hexagon nut
ASTM A194-2H, A194-8, A194-8M
