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Threaded Forged Steel Gate Valve

Description

Threaded forged steel gate valve is a kind of most common open/close valve. It is mainly composed of valve body, disc, bonnet, valve gland, gasket, bolt and nut. This threaded gate valve uses disc to connect or cut off medium in pipeline. Disc functions like a sluice gate to connect or cut off media, so it is called gate valve or sluice valve. The on-off component of gate valve is valve disc. The movement direction of disc is perpendicular to the flowing direction of fluid. Gate valve can only be opened or closed fully.

Applications

Forged steel threaded gate valve can be widely applied as fluid regulating and intercepting equipment in various pipelines, such as tap water, sewage, construction, petroleum, chemical, food, medicine, textile, electric power, shipbuilding, metallurgy, and energy pipeline systems.

Classification

Threaded sluice valves can be classified according to fluid’s pressure grades into 900LB, 1500LB and 2500LB.

Features

1. Sealing material can be selected according to fluid so as to increase sealing property and wear resistance of the threaded gate valve and decrease cost.
2. Threaded forged steel gate valve needs small torsion to open.
3. Valve body adopts precision casting technique.
4. Numerical control processing is utilized on valve disc.
5. Valve seat is replaceable, which makes maintenance more simple and convenient.
6. Twice shot blasting processing on outer surface makes the threaded gate valve look fine and smooth.
7. Guarantee period of our products is 18 months. Lifelong technology service is offered.

Pressure: CLASS900-1500 PN16.0~26.0

1. Bolted Bonnet/Welded Bonnet
2. Full Port
3. Solid Wedge Gate
4. Treaded Ends or SW Ends

Technical Specification of Threaded Forged Steel Sluice Valves


Technical Specification ASME/API GB/JB
Design Standard API602 GB/T7746
Pressure-Temperature Rating ASME B16.34 GB/T12224
Face-Face Factory Standard GB/T7746
Socket-Welded Ends ASME B16.11 GB/T1751
Threaded Ends ASME B1.20.1 GB/T306
Inspection & Test API598 JB/T9092

Material List for Main Parts of Threaded Forged Steel Gate Valves


No. Part Name ASTM
Carbon Steel Tailess Steel Alloy Steel
1 Body A105 LF2/LF3 A182 F304 A182 F11/F22
2 Seat A182F6a A182F6a A182 F304 A182 F11/F22
3 Wedge A182F6a A182F6a A182 F304 A182F6a
4 Stem A276-410 A276-410 A276-304 A276-410
5 Gasket Graphite+304
6 Sealing Ring Graphite
7 Yoke A216-WCB A216-WCB A351 CF8 A216-WCB
8 Bonnet A105 LF2/LF3 A182 F304 A182 F11/F22
9 Bolt A193 B7 A320L7 A193 B8 A193 B16
10 Packing Graphite
11 Stem Bushing A276-410 A276-410 A276-304 A276-410
12 Gland A216-WCB A216-WCB A351 CF8 A216-WCB
13 Eye Blot A193 B7 A320 L7 A193 B8 A193 B7
14 Stem Nut A276-410
15 Handwheel A197 or A47-32510

Main Dimensions & Weight of Forged Steel Threaded Gate Valves


Pressure Size Main Dimension of Valve Weight(kg)
mm in. D L H W
BB/WB PB BB/WB PB BB/WB PB BB/WB PB WB PB
CLASS900 PN16.0 8 1/4 7 - 102 - 166 - 120 - 3.6 -
10 3/8 10 - 102 - 166 - 120 - 3.5 -
15 1/2 13 13 102 140 169 321 120 125 3.4 11.5
20 3/4 18 18 111 140 193 321 125 125 3.8 11.0
25 1 24 24 120 140 230 321 160 160 7.8 10.2
32 1-1/4 29 29 120 178 246 380 160 160 11.9 20.5
40 1-1/2 36.5 36.5 140 178 283 414 180 180 12.2 21.7
50 2 46.5 46.5 178 216 330 502 200 240 21.9 43.5
CLASS1500 PN26.0 8 1/4 7 - 102 - 166 - 120 - 3.6 -
10 3/8 10 - 102 - 166 - 120 - 3.5 -
15 1/2 13 13 102 140 169 321 120 125 3.4 11.5
20 3/4 18 18 111 140 193 321 125 125 3.8 11.0
25 1 24 24 120 140 230 321 160 160 7.8 10.2
32 1-1/4 29 29 120 178 246 380 160 160 11.9 20.5
40 1-1/2 36.5 36.5 140 178 283 414 180 180 12.2 21.7
50 2 46.5 46.5 178 216 330 502 200 240 21.9 43.5
Note: H means the height when valve is fully opened.

Attentions When Selecting Forged Steel Threaded Gate Valves

1. Valve Form (Category, Structure and Connection Type)
2. Medium (Sluice Valve’s Material and Corrosivity)
3. Size of Diameter
4. Working Pressure (Intensity and Airtightness)
5. Working Temperature
Payment, Package and Delivery
1. Products can be paid by T/T, D/P, D/A, L/C or according to your requirement.
2. Threaded gate valves (threaded sluice valves) are packaged by standard exported wooden cases.
3. Our threaded forged steel gate valves are transported by sea, railway or air.