Trusted Pressure Seal Gate Valve Manufacturer

NTVAL provides durable Pressure Seal Gate Valves designed for high-pressure environments. Built for optimal performance and minimal maintenance, our valves offer long-lasting service and reliability. Choose NTVAL for cost-effective, dependable solutions in every project.

Your Source for Superior Valve Products

Parts and Materials Class 600, 900, 1500 & 2500

Item

Part Name

WCB

WC6

WC9

C5

C12

CF8M

1

Body

A216-WCB

A217-WC6

A217-WC9

A217-C5

A217-C12

A351-CF8M

2

Bonnet

A216-WCB

A217-WC6

A217-WC9

A217-C5

A217-C12

A351-CF8M

3

Wedge

A216-WCB+HF

A217-WC6+HF

A217-WC9+HF

A217-C5+HF

A217-C12+HF

A351-CF8M+HF

4

Stem

A479-410

A479410

A479410

A479410

A479410

A479316

5

Handwheel

A197orWCB

A197 orWCB

A197 orWCB

A197 orWCB

A197orWCB

A197orWCB

6

BodyseatRing

C/S 1020+HE

A182F11+HF

A182F22+HF

A182F5a+HF

A182F9+HF

240316+HF

7

Backseat

A216-WCB+13Cr

A217-WC6+13Cr

A217-WC9+13Cr

A217-C5+13Cr

A217-C12+13Cr

A351-CF8M

8

Gasket

Soft Steel

304SS

304SS

304SS

304SS

304SS

9

Packing

Graphite

Graphite

Graphite

Graphite

Graphite

Graphite

10

Gland Flange

A283D

A283D

A283D

A283D

A283D

A351-CF8

11

Gland Bolt

A307B

A307B

A307B

A307B

A307B

A193B8

12

Gland Nut

A307B

A307B

A307B

A307B

A307B

A1948

13

Hinge Clamp Bolt

A193B7

A193B7

A193B7

A193B7

A193B7

A193B7

14

Packing Gland

CIS1020+Cr

A479410

A479410

A479410

A479410

A479316

15

BonnetBolt

A193B7

A193B16

A193B16

A193B16

A193B16

A193B8

16

BonnetNut

A1942H

A1944

A1944

A1944

A1944

A1948

17

Yoke Cap

C/S1020

C/S 1020

C/S1020

CS 1020

C/S1020

C/S 1020+Zn

18

Yock Sleeve

A439D2

A439D2

A439D2

A439D2

A439D2

A439D2

19

Handle Nut

C/S1020

C/S 1020

C/S1020

C/S1020

C/S1020

C/S 1020+Zn

20

SetScrew

CS1020

C/S 1020

C/S1020

CS1020

C/S1020

C/S 1020

21

Grease Nipple

Steel

Steel

Steel

Steel

Steel

Steel

22

Bearing

Steel

Steel

Steel

Steel

Steel

Steel

23

Yoke

A216-WCB

A216-WCB

A216-WCB

A216-WCB

A216-WCB

A351-CF8

24

Yoke Bolt

A193B7

A193B7

A193B7

A193B7

A193B7

A193B8

25

Yoke Nut

A1942H

A1942H

A1942H

A1942H

A1942H

A1948

27

BonnetClamp

C/S1045

C/S 1045

C/S1045

CIS1045

C/S1045

A240304

28

Retainer

C/S1045+Cr

A240304

A240304

A240304

A240304

A240316

29

Adopter Ring

C/S1045+Cr

A240304

A240304

A240304

A240304

A240316

31

BonnetClamp

C/S1045

C/S 1045

C/S1045

CS 1045

C/S1045

A240304

32

Washer

A479410

A479410

A479410

A479410

A479410

A240304

33

Hinge Clamp

A216-WCB

A216-WCB

A216-WCB

A216-WCB

A216-WCB

A351-CF8

Dimension

Pressure Seal Gate Valve 7
  • Cast Steel Gate Valve, Outside Screw and Yoke
  • Pressure Sealed, Rising Stem, Flexible Wedge
  • “T” Head Stem
  • Designed to ASME B16.34, API 600
Face to FaceASME/ANSIB16.10
End FlangeASME/ANSIB16.5
ButtweldASME/ANSIB16.25
ClassASME/ANSICL600~CL2500

CLASS 600 DIMENSION

Unit:inch

 

SIZE(in.)

2-1/2

3

4

6

8

10

12

14

16

18

20

24

 

A

8.5

10

1200

18

23

28

32

35

39

43

47

55

 

B

24

24

28

35

46

51

58

64

73

80

90

98

 

E

10

10

14

14

20

24

30

30

34

34

34

38

 

W.T(Ibs)

71

75

145

295

535

905

1450

2120

2730

3200

4480

5432

 

CLASS 900 DIMENSION

Unit:inch

 

SIZE(in.)

2

2-1/2

3

4

6

8

0
U

12

16

18

20

24

 

A

8.5

10

12

14

20

26

31

36

43

48

52

55

 

B

23

24

24

29

38

52

56

63

78

85

94

105

 

E

10

10

10

18

18

20

24

30

30IHW

30IHW

30IHW

38IHW

 

W.T(Ibs)

75

95

105

175

522

880

1270

1890

3250

3985

5880

7925

 

CLASS 1500 DIMENSION

Unit:inch

SIZE(in.)

2

2-1/2

3

4

6

8

10

12

14

16

18

20

24

A

8.5

10

1200

16

22

28

34

39

42

47

53

58

58

B

23

24

24

29

39

53.5

58

65.5

73

80

87

95

105.5

E

10

10

10

18

18

20

30

30IHV

30IHW

30IHW

30IHWV

30IHWV

38IHW

W.T(Ibs)

75

95

115

185

585

880

1905

3115

41

4850

6450

8820

11885

CLASS 2500 DIMENSION

Unit:inch

 

SIZE(in.)

2-1/2

3

4

6

8

10

12

14

16

18

20

24

 

A

13

14.5

18

24

30

36

41

44

49

55

62

66

 

B

26

26

31

39

53

60

66

75

85

95

105

115

 

E

18

18

20

20

30

30IHV

30IHW

30IHW

38IHW

38IHW

38IHWV

38IHW

 

W.T(Ibs)

150

150

260

750

1250

2380

3650

4980

7275

8800

10585

13500

 

H.W:IMPACTORHANDWHEEL

High-Pressure Seal Gate Valves

High-Pressure Seal Gate Valves are designed and manufactured according to ANSI B16.34 standards. These valves are known for their sophisticated design, compact structure, and reliable sealing. They are suitable for various pipes operating within Class 900lb to Class 4500lb pressure ranges.

Advantages of High-Pressure Self-Sealing Valves

Cost-Efficiency and Reliability

Self-sealing high-pressure valves feature a tightly sealed valve body and cover junction. This design helps to reduce construction costs, enhance performance, and improve safety and reliability.

Enhanced Sealing Performance

The valve’s pressure-sealing mechanism uses a modular structure to achieve a consistent seal. It incorporates austenitic stainless steel, which provides anti-cavitation properties and extended lifespan. 

Long-Term Durability

For valves rated at 2500 pounds and above, the body cavity sealing is lined with stainless steel. This lining protects the valve sealing area from erosion caused by high-pressure differentials, supporting long-term safety and operational reliability.

Specifications

  • Pressure Ratings: Class 900lb to 2500lb
  • Size Range: NPS 2″ to 30″
  • Basic Design: ANSI B16.34, API 600
  • Face-to-Face Standards: ANSI B16.10, API 6D
  • Ends Connection: ANSI B16.5(RF,RTJ), B.W. Ends to ANSI B16.25
  • Materials Used: ASTM A216 WCB, ASTM A352 LCB, ASTM A217 WC6, WC9, C12, C5, CF8, CF3, CF3M, CF8M etc.
 

Standards Compliance

  • Design and Manufacture: ANSI B16.34, API600 API6D, BS1414
  • Face-to-Face (End-to-End): ANSI B16.10, API6D
  • Flanged connection: ANSI B16.5
  • Butt welded end: ANSI B16.25
  • Test and inspection: API 598, API 6D
Pressure Seal Gate Valve 8

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Specifications of Pressure Seal Gate Valve

Pressure Seal Gate Valve is crafted from high-quality materials such as carbon steel, stainless steel, and alloy steel. These materials provide the valve with exceptional durability and longevity. No wonder the sturdy construction allows the valve to withstand high-pressure environments, making it ideal for industrial applications.
The dimensions of a pressure seal gate valve, including diameter, height, and face-to-face length, are critical for proper installation and operation. These valves are available in various sizes, typically ranging from 2 inches to 24 inches in diameter, allowing compatibility with different pipeline systems. NTVAL offers a broad selection, allowing customers to choose valves that fit their system requirements perfectly.
This valve boasts an impressive pressure rating, typically ranging from 600 to 2500 psi, depending on the specific model. It operates efficiently across a wide temperature range, from -29°C to 593°C. This versatility makes it suitable for various demanding environments, including oil and gas, power plants, and chemical processing.
Pressure Seal Gate Valve 9

Features of Pressure Seal Gate Valve

Hard-Faced Seating Surfaces

Hard-Faced seating surfaces are designed to extend the life of the valve by providing superior wear resistance. These surfaces are typically coated with materials like Stellite, which is known for its hardness and durability. This feature helps maintain a tight seal and reduces the frequency of maintenance.

Bonnet Seal Mechanism

The bonnet seal mechanism in a pressure seal gate valve is one of its standout features. It uses pressure from the system to create a tighter seal as the pressure increases. This design minimizes the risk of leaks, which is especially important in high-pressure applications.

Compact Design

The compact design of pressure seal gate valves is another standout feature. In a tight pipeline network within a power plant, where space is at a premium, these valves offer an ideal solution. Despite handling high pressures, they have a smaller footprint compared to other valves, making them easier to install in systems where space is limited.

Benefits of Pressure Seal Gate Valve

Excellent Sealing Performance

One of the key benefits of the Pressure Seal Gate Valve is its excellent sealing performance. The pressure seal bonnet creates a tight and reliable seal, minimizing the risk of leaks. Think about it, this benefit is essential for maintaining the integrity of high-pressure systems and safety.

Reduce Downtime

The design of a Pressure Seal Gate Valve makes it easy to maintain, which helps reduce downtime. For example, in a chemical processing plant, quick inspections and servicing are crucial to keeping the operation running smoothly. Its simple structure allows for these swift maintenance tasks, minimizing both time and costs.

Long-Lasting Performance

NTVAL's Pressure Seal Gate Valve is built with durable materials such as carbon steel, stainless steel, and alloy steel. This construction provides the valve with long-lasting performance, even in harsh environments. Its resilience makes it a reliable choice for industries like oil and gas, power plants, and chemical processing.

Applications of Pressure Seal Gate Valve

Power Plants

NTVAL Pressure Seal Gate Valves are widely used in power plants, especially in high-pressure steam systems. These valves control the flow of steam efficiently, which is essential for maintaining the safety and efficiency of the power generation process. Their durability and ability to handle extreme pressures make them ideal for this demanding environment.

Petroleum Extraction and Refining

In the petroleum industry, Pressure Seal Gate Valves are essential for managing the flow of crude oil and natural gas. These valves are used in upstream and downstream processes, from extraction to refining. Turns out, their ability to provide a tight seal and withstand high pressures makes them indispensable in this sector.

Chemical Manufacturing

Chemical plants use Pressure Seal Gate Valves to manage the flow of chemicals in production processes. These valves handle aggressive and corrosive substances, thanks to their sturdy construction. The reliable sealing capability supports safe and efficient operation in chemical processing applications.

Steam and Boiling Systems

Pressure Seal Gate Valves are commonly used in steam and boiling systems to control the flow of steam under high pressure. These valves are designed to operate in extreme heat, making them suitable for boilers and other steam-powered equipment that require precise flow management to run efficiently.
Pressure Seal Gate Valve 10
Pressure Seal Gate Valve 11

3 Considerations When Buying Pressure Seal Gate Valve

01

Environmental Conditions

Environmental conditions are crucial when selecting a Pressure Seal Gate Valve. The valve must withstand specific factors like temperature, humidity, and exposure to corrosive elements. Think about that for a minute—choosing the right valve for the environment helps prevent failures and provide long-term operational success.

02

API6D Compliance

API6D compliance is a crucial consideration when purchasing a Pressure Seal Gate Valve. Valves that comply with API6D have been rigorously tested for performance, safety, and durability. At NTVAL we guarantee that our valves meet this standard, which sets the requirements for the design, manufacturing, and testing of pipeline valves.

03

Leakage Class

Leakage class is a crucial consideration when selecting a Pressure Seal Gate Valve. This specification defines the allowable leakage rate through the valve when it is closed, which varies by class and application needs. Valves range from Class 1, allowing the most leakage, to Class 6, allowing almost none. Choosing the appropriate leakage class for the application reduces fluid loss and supports efficient system operation.

FAQs of Pressure Seal Gate Valve

Yes, NTVAL’s Pressure Seal Gate Valves are suitable for both environments, including harsh offshore conditions.
Yes, they are designed for easy maintenance, with accessible parts that can be serviced without removing the valve from the pipeline.
Yes, they are designed for easy installation with standard flange connections, providing a secure and straightforward fit into your pipeline.

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