Through Conduit Gate Valve

Trusted Through Conduit Gate Valve Manufacturer

NTVAL provides durable Through Conduit Gate Valves designed for efficient flow control with minimal pressure drop. Built for reliable performance in demanding environments, our valves meet strict industry standards, ensuring smooth operation in large-scale projects.

Reliable X

Quality Control

We verify that the materials in the pressure seal gate valve match required specifications, confirming correct metal composition for reliable performance.

PMI Test

The sealing test checks for leaks by applying high pressure, confirming the valve prevents fluid from escaping during operation.

Sealing Test

This test measures the valve’s ability to stop harmful gases from escaping, confirming compliance with strict environmental safety standards.

Low Emission Test

The impact test checks how much force the valve can handle, verifying it remains intact and functional under heavy stress.

Impact Test

This inspection confirms that the pressure seal gate valve’s parts match exact size requirements, allowing for proper fitting in systems.

Dimension Inspection

We measure the thickness of the paint layer to protect the valve from rust, confirming proper durability over time.

Painting Thickness Test

The PT test uses a liquid penetrant to detect surface cracks, identifying any small flaws before the valve is approved.

PT

We confirm that the materials used in the valve meet required standards, promoting longevity in various applications.

Material Inspection

Our Valve Applications in Key Industries

Discover how our advanced valve solutions improve flow control, delivering enhanced efficiency, safety, and strict quality assurance.

The pressure seal gate valve controls the flow of chemicals safely and efficiently, preventing leaks and helping to maintain a stable environment.

Chemical Processing

In the petrol chemical industry, this valve withstands high pressures, allowing for safe handling of flammable materials during processing and transport.

Petrol Chemical

The pressure seal gate valve plays a crucial role in O.P.G and nuclear facilities, maintaining safety by controlling fluid flow in critical systems.

O.P.G & Nuclear

In the pulp industry, this valve effectively regulates the flow of water and chemicals, supporting production while minimizing the risk of spills.

Pulp

The pressure seal gate valve is vital in mining operations, managing the flow of water and other materials efficiently, improving safety and productivity.

Mining

In the water and sewage industry, this valve helps control water flow, enhancing proper treatment and distribution while preventing leaks and contamination.

Water & Sewage

The pressure seal gate valve regulates steam flow in various applications, supporting effective heat transfer and maintaining system stability during operation.

Steam System

In boiling systems, this valve controls the flow of liquids, helping to manage temperatures and pressures for safe and efficient operation.

Boiling System

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Seats

The seat faces maintain full contact with the gate regardless of whether the valve is open or closed, keeping them outside the flow stream for extended operation. The seats are activated by line pressure, spring-loaded mechanisms, and the mechanical action of the double disc.

Primary seat seal elastomer inserts are positioned in a groove and supported by secondary metal-to-metal seating. The seats can be removed and replaced without removing the valve from the line. The parallel expanding gate design allows for a tight mechanical seal both upstream and downstream.

A. Gate and Segment Assembly

During operation, the gate and segment assembly collapses to align with all four surfaces. The face-to-face width of the gate is narrower than the distance between the seats, allowing the gate and segment to move freely without sticking or wedging.

B. Closed Position

In the closed position, the two top angles are in contact. As the gate continues to move downward, the segment is stopped by the stop mechanism. This further movement causes the solid gate segment surface to expand against the seats.

C. Open Position

In the open position, the two bottom angles are in contact. As the segment moves further upward, the gate/segment assembly expands, sealing against the seats and isolating the body cavity from the flow.

SEALANT INJECTION SYSTEM

SPRING ENERGIZED, FLOATING SEATS

TYPICAL STEM PACKING CONSTRUCTION

Different Types of Shutter

ORDINARY TYPE

ADJUSTMENT TYPE

TYPE ADIVERSION HOLE

Main Parts Material List

Class 150 Dimensions

Class 300 Dimensions

Class 400 Dimensions

Class 600/900 Dimensions

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Additional General Insights Here

Specs of Pressure Seal Gate Valve

Body Material and Construction

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.

Dimension

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.

Pressure Rating and Temperature Range

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.

Features of Pressure Seal Gate Valve

Advanced Seat Design

The Through Conduit Gate Valve features an advanced seat design that provides a tight seal both upstream and downstream. The seat is designed to be in full contact with the gate whether the valve is open or closed, which minimizes wear and extends the valve’s lifespan. This design also helps prevent leaks, making the valve reliable for critical applications where a secure seal is essential.

Sealant Injection System

This system allows for emergency sealing if the primary seal is compromised. By injecting a sealant, operators can quickly restore the valve’s sealing capability, allowing a continuous operation even in challenging conditions. This feature adds a layer of safety and reliability, particularly in high-stakes environments.

Block and Bleed Capability

This feature allows the valve to completely isolate the downstream side of the valve, even under full pressure. It also enables the bleeding of the valve cavity to check for leaks or to safely depressurize the valve. This capability is crucial for maintaining safety and operational efficiency in complex systems.

Benefits of Pressure Seal Gate Valve

Enhanced Safety

The advanced features of the Through Conduit Gate Valve, such as the block and bleed capability, significantly enhance safety. By allowing the isolation of valve sections and the ability to safely release pressure, the valve reduces the risk of accidents. This is particularly beneficial in environments where safety is a top priority.

Reliable Performance

NTVAL’s Through Conduit Gate Valves provide reliable performance under various conditions. The advanced seat design and sealant injection system ensure valve integrity, even with wear, damage, or harsh environments, reducing downtime and maintenance for smooth, efficient operations.

Long-Term Durability

The materials and design features of the Through Conduit Gate Valve contribute to its long-term durability. A sturdy seat design and an effective sealant injection system allow these valves to be built to last. This durability means fewer replacements and repairs, providing a cost-effective solution over the lifespan of the valve.

Applications of Through Conduit Gate Valve

Oil and Gas Industry

Through Conduit Gate Valves are widely used in the oil and gas industry, particularly in pipeline systems. These valves are essential for controlling the flow of crude oil, natural gas, and other fluids, offering safe and efficient transportation. Here’s the interesting part: their design minimizes pressure drop, making them ideal for long-distance pipelines where maintaining flow efficiency is critical.

Power Plant Generation

Power plants rely on Through Conduit Gate Valves for controlling the flow of steam, water, and other fluids in high-pressure systems. These valves are essential for the safe and efficient operation of boilers and turbines. For example, in a thermal power plant, these valves help regulate steam flow to the turbines, allowing consistent power generation.

Petrochemical Industry

In the petrochemical industry, Through Conduit Gate Valves are crucial for handling various chemicals and refining processes. These valves help manage the flow of raw materials and finished products, providing precise control over processing stages. NTVAL’s valves, with their reliable sealing, are especially valued in this industry for preventing leaks in hazardous environments.

Water & Sewage Systems

Through Conduit Gate Valves play a vital role in managing large volumes of water and wastewater in water and sewage systems. They offer efficient flow control with minimal obstruction, reducing the risk of blockages and ensuring smooth water distribution. Their durable design makes them suitable for both clean water supply and sewage treatment plants.

3 Considerations When Buying Pressure Seal Gate Valve

01 Expanding Gate Mechanism

The first important consideration when purchasing a Through Conduit Gate Valve is the expanding gate mechanism. This provides a tight seal by expanding the gate against the valve seats, which is especially critical in high-pressure applications. For instance, in an oil pipeline, the expanding gate mechanism helps prevent leaks, providing extra safety and reliability.

02 Coated with Film Lubricant

When buying a valve, it’s essential to consider whether it’s coated with a film lubricant. This coating reduces friction between moving parts, extending the valve’s lifespan and offering smoother operation. NTVAL offers valves with this protective coating, which is particularly beneficial in environments where frequent valve operation is required, such as in chemical plants.

03 Design to API 6D

The design standard of the valve is another crucial factor, and valves designed to API 6D are highly recommended. This standard guarantees that the valve meets the industry requirements for safety and performance. The point is that when working on large-scale projects selecting a valve designed to API 6D certifies compliance with industry regulations and reliable operation.

FAQS About Pressure Seal Gate Valve

1. Can Through Conduit Gate Valve handle high-temperature applications?

Yes, Through Conduit Gate Valves are engineered to operate in high-temperature environments, with material options that maintain integrity under extreme heat.

2. How does NTVAL provide the quality of its Through Conduit Gate Valve?

We certify quality through strict adherence to international standards such as API 6D, comprehensive testing, and precision manufacturing processes that guarantee consistent valve performance.

3. How does Through Conduit Gate Valve minimize maintenance requirements?

NTVAL’s Through Conduit Gate Valves has a design that reduces the risk of debris accumulation, self-cleaning sealing surfaces, and durable materials that minimize wear, leading to lower maintenance needs.

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NO	PART NAME	MATERIAL	NO	PART NAME	MATERIAI
1	Body	A216 WCB	11	Gland flange	A180 F304+O-ring
2	Bonnet	A216 WCB	12	Plug	A105
3	Yoke	A216WCB	13	Body/Bonnet S.W.Gasket	AISI316+GRAPHITE
4	Gate	A182 F6A+ENP	14	Bolt	A193 B7
5	Seat ring	A182 F6A	15	Nut	A194 Gr.2H
6	Spring	INCONELX750	16	Gate Plate Guide	CARBON STEEL
7	Insert	PTFE	17	Screw	Steel 12.9
8	O-ring	VITON	18	Lantern Ring	AISI304
9	Stem	A182 F6A	19	Seal Injection Fittings	INOX STAIINLESs STEEL
10	Stem Bushong	A182 F304	20	Stem Packing	PTFE

Face to Face	ASME/ANSI B16.10
End Flange	ASME/ANSI B16.5
Butt Weld	ASME/ANSI B16.25
Class	ASME/ANSI CL150

CLASS 150 DIMENSIONS
SIZE (in.)	FLG	B.W							G.O
	L	L1	H	H2	D0	B	B1	B0	SIZE	H1
										Unit:mm
1	127	127	360	250	180	–	–	–	–	85
1-1/4	140	140	375	260	180	–	–	–	–	103
1-1/2	165	165	410	290	250	–	–	–	–	115
2	178	216	450	315	250	–	–	–	–	122
2-1/2	190	241	550	420	300	–	–	–	–	154
3	203	283	610	428	300	–	–	–	–	169
4	229	305	700	494	300	770	650	310	BA-0	193
6	267	403	895	625	350	965	800	310	BA-0	283
8	292	419	1130	784	350	1200	960	310	BA-0	352
10	330	457	1290	937	400	1360	1080	310	BA-0	440
12	356	502	1480	1080	450	1560	1200	310	BA-0	514
14	381	572	1660	1283	500	1740	1350	460	BA-1	602
16	406	610	1850	1417	500	1930	1500	460	BA-1	678
18	432	660	2080	1489	600	2160	1680	460	BA-1	785
20	457	711	2300	1672	700	2420	1850	460	BA-1	855
24	508	813	2680	2012	800	2800	2120	460	BA-2	1045
28	610	914	3080	2250	800	3200	2450	460	BA-2	1190
32	660	965	3491	2550	1000	3640	2800	460	BA-2	1350
36	711	1016	3897	2850	1000	4050	3080	600	BA-3	1510
40	811	–	4317	3250	1200	4467	3400	600	BA-3	1715

Face to Face	ASME/ANSI B16.10
End Flange	ASME/ANSI B16.5
Butt Weld	ASME/ANSI B16.25
Class	ASME/ANSI CL300

CLASS 300 DIMENSIONS
SIZE (in.)	FLG	B.W							G.O
	L	L1	H	H2	D0	B	B1	B0	SIZE	H1
										Unit:mm
1	165	165	370	260	180	–	–	–	–	90
1-1/4	178	178	385	270	180	–	–	–	–	115
1-1/2	190	190	420	300	250	–	–	–	–	130
2	216	216	458	325	250	–	–	–	–	137
2-1/2	241	241	555	420	300	–	–	–	–	169
3	283	283	615	430	300	–	–	–	–	184
4	305	305	710	500	300	770	650	310	BA-0	218
6	403	403	900	625	350	965	800	310	BA-0	311
8	419	419	1135	790	350	1200	960	310	BA-0	382
10	457	457	1401	1040	400	1360	1090	310	BA-0	476
12	502	502	1580	1150	450	1560	1200	310	BA-1	545
14	572	762	–	–	–	1740	1350	460	BA-1	645
16	610	838	–	–	–	1930	1540	460	BA-1	728
18	660	914	–	–	–	2160	1700	460	BA-1	800
20	711	991	–	–	–	2420	1850	460	BA-2	930
24	787	1143	–	–	–	2800	2120	460	BA-2	1100
28	914	1346	–	–	–	3200	2460	460	BA-2	1260
32	965	1524	–	–	–	3640	2800	460	BA-2	1420
36	1016	1727	–	–	–	4050	3080	600	BA-3	1510