Flanged Forged Steel 1500LB Pressure Sealed Gate Valve

Forged Steel Flanged Ends Gate Valve 150LB~2500LB

Flange Forged Steel Gate Valve, generally has bolted bonnet type for normal pressure and pressure sealed type for higher pressure for better sealing. For pressure sealing type Gate Valve, is used for high pressure, like 1500LB, 2500LB, which better for sealing between bod and bonnet. 

Flanged ends forged steel gate valve, manufacture according to API602 standard, pressure range from 150LB to 2500LB, and for different pressure, it has different flange type. 

Generally speaking, forged type gate valve has bolted bonnet type and pressure sealed type, bolted bonnet type for normal pressure, high pressure use pressure sealed type for better sealing of valves.

Forged steel flange gate valve size from 1/2'' to 2'', for much bigger size, suggest to use casting body. Materials could choose as per different medium and temperature using. 

Specifications:

Construction:

1. BODY. The body is forged steel and designed to the basic dimensional requirements of the applicable specifications such as API 602 and ASME B16.34. The body is available in both the full or conventional port design.

2. BONNET. The bonnet is forged steel, has an integral backseat and incorporates the stuffing box, which has dimensions per the applicable specifications such as API 602.

3. BODY-BONNET JOINT. Two different bonnet joint designs are available. These are either the bolted bonnet or the threaded and seal welded type.

4. GASKET. The bolted bonnet joint design valve uses a contained, controlled compression, spiral wound type gasket.

5. BONNET BOLTING. The bonnet bolting is manufactured of alloy steel in accordance with the requirements of the applicable specifications such as API 602 and ASME B16.34.

6. SEAT RINGS. The seat rings are steel and makeup part of the valve trim. They are pressed into the valve body and wedged into place, forming a seal with the body. The seating surfaces are ground and lapped.

7. WEDGE. The wedge, which is solid design, is forged or investment cast steel and is part of the valve trim. The seating surfaces are ground and lapped.

8. STEM. The stem is forged steel and part of the valve trim. It contains an integral back seat shoulder, which mates with the integral backseat of the bonnet. The stem is designed to the basic dimensional requirements of the applicable specifications such as API 602.

9. GLAND AND FLANGE. The gland, gland flange assembly utilizes a separate, two piece design. This self aligning design allows the flange to be unevenly tightened while the gland maintains it’s parallel alignment with the stem and stuffing box.

10. GLAND BOLTS AND NUTS. The steel/stainless steel gland bolt and nut assembly is a stud, double nut arrangement. This design allows complete removal from the valve when service is required. The use of industry standard thread full length studs and nuts also allows easy replacement should these items be lost or in need of replacement.

11. YOKE SLEEVE. The yoke sleeve is of forged stainless steel material having a high melting point and is resistant to wear and corrosion.

12. HANDWHEEL. The handwheel is forged carbon steel of an open spoke design. This robust construction along with appropriate sizing allows for ease of operation.

Design construction:

1. API 602 - ASME B16.34 - BS 5352

2. Testing according to API 598

3. Marking MSS SP25

4. Outside Screw and Yoke (OS&Y)

5. Self aligning two piece packing gland

6. Spiral-wound gasket

7. Integral backseat

8. Socket Weld Ends to ASME B16.11

9. Screwed Ends (NPT) to ASME B1.20.1

10. Butt Welding Ends to ASME B16.25

11. Ratings:

                  - carbon steel class 800 1975 psig @ 100°F (138 bar + 38°C)

                  - carbon steel class 1500 3705 psig @ 100°F (255 bar + 38°C)

Competitive Advantages:

1. OEM/ODM is applicable

2. Offer free sample for testing

3. 100% test before delivery

4. 18 months warranty

Material List: