
Flat Plate Slab Gate Valve (Z73) Weld End
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Product Details
NSV Slab Gate Valves(Parallel type gate valves, Through Conduit Gate Valves)are widely used in oil, natural gas long-distance pipelines and gas fields as open/close control valves. Our valves used in casting body, the gate designed with diversion holes, non-diversion holes; single plate and double plate structure; Seat used bi-direction seal seat which mainly based on the metal seat sealing and assisted with soft seat sealing as a second type of seal. The series of parallel type gate valve has rational design, compact structure, sulfur resistance, corrosion resistance, wear-resistant, reliable sealing, and light torque of switches, easy-to-use.
Applicable Standard
Design Standard: API 6D, ASME B16.34
Face to Face: ASME B16.10, API6D
End Flange: ASME B16.5, ASME B16.47
Butt welding Ends: ASME B16.25
Inspection and Test: API 598
Products Range
Size: 2" ~ 36"(DN50 ~ DN900)
Rating: ANSI 150lb ~1500lb
Body Materials: Carbon Steel, Stainless Steel, Alloy Steel, Duplex Steel
Trim: Per API 600
Operation: Handwheel, Gear, Electric, Pneumatic, Hydraulic
Design Features
Full port design
Double block&bleed
Emergency Sealant injection
Single disc or double disc
Diversion hole type or non diversion hole
Flanged or butt welding ends
Fire safe design to API 6FA/ API 607
Slab gate valve the main performance specifications

STANDARD MATERIAL SPECIFICATIONS
| NO | Part Name | Material | ||||||||||||
1 | Body | A216 WCB | A325 LCB | A217 WC6 | A217 WC9 | A217 C5 | A351 CF8 | A351 CF8M | A351 CF3M | A351 CF3M | A351 CF8C | |||
2 | Seat | A105 | A350 | A182 | A182 | A182 | A182 | A182 | A182 | A351 | A182 | |||
3 | Wedge disc | A216 WCB | A325 LCB | A217 WC6 | A217 WC9 | A217 C5 | A351 CF8 | A351 CF8M | A351 CF3 | A351 CF3M | A351 CF8C | |||
4 | O-Ring | NBR | ||||||||||||
5 | Gage Block | A193 B7 A320 L7 A193 B16 A320 B8 | ||||||||||||
6 | Stem | A182 | A182 | A182 | A182 | A182 | A182 | A182 | A182 | A182 | A182 | |||
7 | Gasket | Flexible Graphite | ||||||||||||
8 | Bolt | A193 B7 A320 L7 A193 B16 A193 B8 | ||||||||||||
9 | Nut | A194 2H A194 4 A194 7 A194 8 | ||||||||||||
10 | Bonnet | A216 | A352 | A217 | A217 | A217 | A351 | A351 | A351 | A351 | A351 | |||
11 | Back sealing seat | A182 F6a | A182 F6a | A182 F304 | A182 F304 | A182 F304 | A182 F304 | A182 F316 | A182 F304L | A182 F316L | A182 F321 | |||
12 | Oil | nozzle | Copper or Carbon steel | or Stainless steel | ||||||||||
13 | Spacer Ring | ASTM 4140 1Cr13 | ||||||||||||
14 | Packing | Graphite+ ASBESTOS | ||||||||||||
15 | Yoke | A216 | A352 | A217 | A217 | A217 | A351 | A351 | A351 | A351 | A351 | |||
16 | Yoke nut | A439 D-2 2CuAl10Fe3(GB STD) | ||||||||||||
17 | Oil | Cup | Copper or Carbon steel or Stainless steel | |||||||||||
18 | Bearing gland | Carbon Steel or Alloy Steel | ||||||||||||
19 | Handwheel | Cast Iron | ||||||||||||
20 | Protector | 25 | ||||||||||||
21 | Indicator | ASTM 4140 1Cr13 | ||||||||||||
Sealing face | 13Cr/13Cr.STL/STL.13Cr/STL.316/STL.18-8/18-8.H.C/H.C. | |||||||||||||
FAQ
1.Q: What’s the brand of your company manufacture ?
A:NSV or OEM service
2. Q: What’s the valves warranty?
A: Our valves warranty period should be 18 months from the date of shipment or 12 months after installation, whichever occurs first.
3. Q:Is there have MOQ?
ANo.we can accept 1set,but there have additional cost $150.00(process of export) if the order value within $2000.00.
'The more focused, the more professional' is the basis for us to become a leader in Flat Plate Slab Gate Valve (Z73) Weld End. We take the cost management as the core and the production spot management as the foundation, grasping the market quotation to provide the first-class service, the top-rate product quality to the customer. We provide personalized services according to the characteristics of different types of customers, and proactively formulate perfect service standards for more customers.
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