Through Conduit Gate Valve

Through conduit gate valves are designed for oil as pipeline service. Featured with double block and bleed function,it is suitable for bi-directional flow isolation. We have 2 main series: Slab gate and expanding gate with maximum working temperature up to 500.
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CLASS 150~1500 THROUGH CONDUIT GATE VALVE
 
Rising stem rotating and unrisen handwheel outside screw and yokemate-dusty design with position indicator parallel and solid wedge two structures with or without conduit. Welco also can product metallic sealing flat gate valve for critically pipeline application.
 
Standards compliance 
Design and manufacture: API 6D
Inspection and test: API 6D or API 598
Face to face dimension: ANSI B 16.10
Connection dimensions: ANSI B16.5 for flanged ends, ANSI B16.25 for butt welded ends.
Pressure and temperature rating: ANSI B16.34
Material specifications
NO.
Part Name
Material
WCB
LCB
WC6
WC9
C5
CF8
CF8M
CF3
CF3M
1
Body
A216 WCB
A352 LCB
A217 WC6
A217 WC9
A217 C5
A351 CF8
A351 CF8M
A351 CF3
A351 CF3M
2
Seat
A105
A350 LF2
A182 F304
A182 F304
A182 F304
A182 F304
A182 F316
A182 F304L
A182 F316L
3
Sluice Plate
A216 WCB
A325 LCB
A217 WC6
A217 WC9
A217 C5
A351 CF8
A351 CF8M
A351 CF3
A351 CF3M
4
O-Ring
NBR/FEP
5
Gage Block
A193 B7
A320 L7
A193 B16
A320 B8
6
Stem
A182 F6a
A182 F304
A182 F304
A182 F304
A182 F304
A182 F304
A182 F316
A182 F304L
A182 F316L
7
Gasket
Flexible Graphite
8
Bolt
A193 B7
A320 L7
A193 B16
A193 B8
A194 B8M
9
Nut
A194 2H
A194 L7
A194 4
A194 8
A194 8M
10
Bonnet
A216 WCB
A325 LCB
A217 WC6
A217 WC9
A217 C5
A351 CF8
A351 CF8M
A351 CF3
A351 CF3M
11
Backseat Bushing
A182 F6a
A182 F6
A182 F304
A182 F304
A182 F304
A182 F304
A182 F316
A182 F304L
A182 F316L
12
Clib Talker
Copper or Carbon steel or Stainless Steel
13
Separate Link
ASTM A182 F410
14
Packing
Graphite+ASBESTOS
15
Yoke
A216 WCB
A325 LCB
A217 WC6
A217 WC9
A217 C5
A351 CF8
A351 CF8M
A351 CF3
A351 CF3M
16
Stem nut
A439 D2~~Cu-Alloy
17
Oil Cup
Copper or Carbon steel or Stainless Steel
18
Retaining Nut
Carbon Steel or Alloy Steel
19
Handwheel
A216 WCB
20
Protector
A105N
21
Indicator
ASTM A182 F410
The sealing face can be overlay welded 410SS, 316SS or stellited material.
The major parts of the valvescan be designed and selected according to actual work condition or as per customer specific requirements.
The materials are according to ASTM standard
 

Products List

Ball Valve
◆ Cast Steel Floating Ball Valve
◆ Forged Steel Floating Ball Valve
◆ Cast Steel Trunnion Ball Valve
◆ Forged Steel Trunnion Ball Valve
◆ Welded Structure Ball Valve
◆ Top Entry Ball Valve

Butterfly Valve
◆ Concentric Type Butterfly Valve
◆ Double Eccentric Butterfly Valve
◆ Triple Offset Butterfly Valve
◆ High Performance Butterfly Valve
◆ AWWA C504 Butterfly Valve
◆ Electric Butterfly Valve 
◆ Pneumatic Butterfly Valve
◆ High Pressure Butterfly Valve  

Gate Valve
◆ Cast Steel Gate Valve
◆ Pressure Seal Gate Valve
◆ Through Conduit Gate Valve
◆ Forged Steel Gate Valve

Globe Valve
◆ Cast Steel Globe Valve
◆ Pressure Seal Globe Valve
◆ Forged Steel Globe Valve

Check Valve
◆ Cast Steel Swing Check Valve
◆ Pressure Seal Check Valve
◆ Dual Plate Wafer Check Valve
◆ Forged Steel Check Valve

Plug Valve
◆ Sleeve Soft Sealing Plug Valve
◆ Inverted Pressure Balance Lubricated Plug Valve

◆ Steel Strainer

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China Butterfly Valve Manufacturer - www.chinavalve.info
Address: Sanqiao Industrial Zone, Oubei Town, Yongjia County, Zhejiang Province, China. Zip Code: 325102
Tel: +86-577-67279881 Fax: +86-577-67279880 Email: welcovalve@gmail.com
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