Forged steel thread / socket welding globe valve

Short Description:

Forged steel globe valve is not only suitable for medium and low pressure, but also for high pressure. It is widely used in petroleum, chemical, pharmaceutical, chemical fertilizer, electric power and other industries. Act on the stage or connect the regulating pipeline medium.


Product Detail

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Features of forged steel thread / socket welding globe valve

 

1. It has compact structure, beautiful appearance and reduced flow channel. Structural features: B.B. or W.B;

2. The sealing surface is made of alloy steel or cemented carbide. The matching of sealing materials is reasonable and the service life is long;

3. The valve disc is conical, and the valve stem is provided with inverted seal, with good sealing performance. The surface of the valve stem is nitrided, which has good corrosion resistance and friction resistance. The packing adopts flexible graphite, with reliable sealing, flexible operation and small opening and closing torque;

4. Various piping standards and connection forms (such as socket welding, butt welding and threaded connection) can be selected.

 

Executive standard for forged steel thread / socket welding globe valve

 

Product specification design code Structural length Connecting flange Test and inspection Pressure temperature
JB/T7746 JB/T7746 JB/T 79、GB/T9113、HG/T20592、EN1092、ASME B16.5 GB/T26480GB/T13927、API598 GB/T12224JB/T7746

Main performance specifications

Nominal pressure Test items strength test Sealing test Air seal test Applicable temperature℃ Applicable medium
1.6 2.4 1.76 0.6 ≤425 Water, oilSteam and nitric acid
2.5 3.8 2.76
4.0 6.0 4.4
6.4 9.6 7.04
10.0 15.0 11.0
16.0 24.0 17.0

 

Material of main parts of forged steel thread / socket welding globe valve

 

Part name Material of parts
Body / bonnet A105 1Cr18Ni9Ti
Disc / seat 20Cr13 1Cr18Ni9Ti
Stem 20Cr13 1Cr18Ni9Ti
seal ring 1Cr13+HF 1Cr18Ni9Ti+STL
filler NBR/FPM Flexible graphite teflon(PTFE)
shim Flexible graphite
Bolt 35/35CrMo 1Cr18Ni9Ti

 

Drawing of forged steel thread socket welding stop valve

 

锻钢螺纹承插焊截止阀图纸

 

Application specification

 

1. Design and manufacture: ASME / ANSI B16.34; API 602; JB / t7746

2. Connection end size:

(1) Socket welding end: ASME / ANSI B16.11; JB / t1751

(2) Threaded end: ASME / ANSI b1.20.1 (NPT) GB / t7306 — 87 (RC)

3. Structural features: B.B or W.B; OS & Y

4. Main materials: A105; LF2; F5; F11; F22; f304; F316; f304l; f316l

5. Valve inspection and test: API598; GB / t26480; GB / t13927

 

Main connecting dimensions of forged steel thread / socket welding globe valve

 

DN(mm) R.P 8 10 15 20 25 32 40 50 -
NPS(in) 1/4 3/8 1/2 3/4 1 1 1/4 1 1/2 2 -
DN(mm) F.P - 8 10 15 20 25 32 40 50
NPS(in) - 1/4 3/8 1/2 3/4 1 1 1/4 1 1/2 2
d R.P 7 10 10 13 19 24 29 36.5 -
F.P - 7 10 13 18 24 29 36.5 46.5
L R.P 79 79 79 92 111 120 152 172 -
F.P - 79 79 92 111 120 152 172 200
H(开启) R.P 153 153 158 163 193 250 250 291 -
F.P - 153 158 163 193 250 250 291 350
W R.P 100 100 100 100 125 160 160 180 -
F.P - 100 100 100 125 160 160 180 240
WT(kg) R.P 1.9 1.8 1.7 2.1 3.3 7.5 7.5 11.4 -
F.P - 2.1 1.9 2.3 3.6 7.8 8.2 12.0 15.0

 

 


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