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Pressure Seal Alloy Steel Gate Valve Bonnet PSB Hardfaced Api 6D 2500LB Z40 / Z61

Categories Cast Steel Gate Valve
Brand Name: Tengs Valve
Model Number: Z40 / Z61
Certification: ISO, CE, API
Place of Origin: China
Price: Negotiable
Supply Ability: 500 Pcs Per Month
Delivery Time: 30 Days
Packaging Details: Sea Worthy Plywoods, Air Worthy Plywoods
Body Material: Alloy Steel: A217 WC6
Trim: Trim 5, Full Stellite
Size: 2in - 12in
Pressure Rating: Class 2500LB / 2500#
Actuator: Manual Operated: Handwheel, Bevel Gear
Connection Ends: RTJ, RF, BW, Butt Welding
Special Test: RT, LP, MT
Other: OEM Available
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Pressure Seal Alloy Steel Gate Valve Bonnet PSB Hardfaced Api 6D 2500LB Z40 / Z61

Alloy Steel Gate Valve A217 WC6 Pressure Seal Bonnet PSB Hardfaced Api 6D 2500LB Z40 / Z61

Quick Details:

1. Type: PSB Gate Valves Z40 / Z61
2. Pressure Seal Bonnet (PSB), Flexible Wedge Design
3. Size Range: 2" to 12"
4. Pressure Ratings: ANSI 2500LB
5. Materials Available in: Alloy Steel A217 WC6, Other materials available
6. Various trim materials are available to suit different service conditions
7. Actuator: Manual, Handwheel, Gear Operated

8. Special Requirement: Nace Mr 0175


Oil and Gas, Petrochemical, Power, Energy Industry etc.


Design and Manufacture: Cast steel gate valve to API 600 or API 6D;

Inspection and Test: API 598, API 600 or API 6D.

End flange dimension: ASME B16.5 (for NPS≤24)

BW end dimension: ASME B16.25.

Face to face and end to end: ASME B16.10.

Pressure-temperature ratings: ASME B16.34.


1. Bonnet Gasket Style

Pressurized seal design is used for Class 2500 gate valve.

2. Packing Seal

As usual, flexible graphite is used for packing material. PTFE or combined packing material can be also used if being requosted by the customer.

3. Body and Bonnet Connection

Class 2500 gate valves usually adopt pressure seal bonnet design

4. Seat

For carbon steel gate valve, the seat is usually forged steel. The seat sealing surface is overlaying welded with hard alloy specified by the customer. For Stainless steel gate valve, the seat is integral with body, or it can be machined directly after hard alloy welded.

5. Disc Design
NPS≥2 Gate valves are flexible wedge gate.

6. Backseat Design

All gate valves have backseat design. In most cases,the carbon steel gate valve is fitted with a renewable back seat. For stainless steel gate valve, the back seat is machined directly in the bonnet or be machined after welding.

7. Stem Design

The stem is integral forged design. The minimum diameter of the stem shall be as per the standard requirement.

8 .Stem Nut

Usually, the stem nut is made of ASTM A439 D2. It is also can be made of copper alloy or other materials if being requested by the customer.

9. Operation

Hand wheel or bevel gear box is usually used for gate valve operation.


1. Pressure Seal Bonnet Cast Steel Gate Valve Parts and Material List for Class 2500LB:

Pressure Seal Cast Steel Gate Valve Drawing for 1500LB-2500LB

Parts No.Parts NameMaterials
WCB/Trim 5WC6/Trim 5
4StemASTM A182 F6aASTM A182 F6a
5Seat RingA105 + STLA182-F11 + STL
6BonnetASTM A216 WCBASTM A217 WC6
7Gasket304 + Graphite
8Adapter RingCarbon SteelAlloy Steel
9RetainerCarbon SteelAlloy Steel
10Yoke CapCarbon SteelAlloy Steel
11Bonnet StudA193 B7A193 B16
12Bonnet Stud NutA194 2HA194 7
14GlandASTM A182F6aASTM A182F6a
15Gland FlangeASTM A216 WCBASTM A217 WC6
16Eyebolt PinASTM A36ASTM A36
17EyeboltASTMA193 B7ASTM A193 B7
18Eyebolt NutASTM A194 2HASTM A194 2H
19NippleCarbon steelCarbon steel
20Stem nutASTM A439 D2ASTM A439 D2
21Yoke Sleeve NutCarbon steelCarbon steel
22Hand WheelDuctile IronDuctile Iron
23Hand Wheel NutCarbon steelCarbon steel

Pressure Sealing Cast Steel Gate Valve Dimenions Drawing For 1500LB-2500LB
2. Main Connection Dimensions:

Cheap Pressure Seal Alloy Steel Gate Valve Bonnet PSB Hardfaced Api 6D 2500LB Z40 / Z61 for sale
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