Flanged Gate Valve

Trusted Flanged Gate Valve Manufacturer

NTVAL offers durable Flanged Gate Valves designed for top performance in tough conditions. Rigorously tested to meet high industry standards, our valves provide reliability at competitive prices with timely delivery. Choose NTVAL for solutions that last.

Reliable Flanged Gate Valve

Quality Control

The PMI test checks the flanged gate valve’s material composition to verify the right metals are used for the valve’s construction.

PMI Test

The sealing test confirms the flanged gate valve stops leaks by applying pressure and checking for a tight, leak-free seal.

Sealing Test

The low emission test checks for gas leaks in the flanged gate valve, confirming it limits harmful emissions during operation.

Low Emission Test

The impact test measures the flanged gate valve’s strength by striking it with force, confirming it holds up under tough conditions.

Impact Test

Dimension inspection involves measuring the flanged gate valve’s parts to verify they match size specifications for proper fit and function.

Dimension Inspection

The painting thickness test examines the flanged gate valve’s paint coating to confirm it effectively protects against rust and corrosion.

Painting Thickness Test

The PT test uses dye to reveal small cracks on the flanged gate valve’s surface, helping find flaws before use.

PT

Material inspection verifies the flanged gate valve is constructed with the correct, high-quality materials suitable for its intended purpose.

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 flanged gate valve resists corrosion, making it ideal for handling harsh chemicals while maintaining safe and reliable operations.

Chemical Processing

Flanged gate valves control high pressures and temperatures, making them perfect for managing the flow of oil and gas safely.

Petrol Chemical

Flanged gate valves provide strong sealing capabilities and handle radioactive fluids, making them essential for managing nuclear plant operations.

O.P.G & Nuclear

In pulp manufacturing, flanged gate valves withstand abrasive materials, allowing smooth flow control in harsh environments without frequent damage.

Pulp

The flanged gate valve’s durable design helps manage slurry and other abrasive materials, making it important for mining operations.

Mining

Flanged gate valves regulate water flow effectively, offering a reliable solution for handling large volumes in water treatment and sewage systems.

Water & Sewage

Flanged gate valves handle high-pressure steam, providing safe and reliable flow control in industrial steam systems without causing leaks.

Steam System

In boiling systems, flanged gate valves manage hot water and steam flow effectively, allowing smooth operations in high-temperature conditions.

Boiling System

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Flanged-Type Gate Valves

Flanged-type gate valves play a crucial role in managing the flow of liquids and gases in industrial systems. They are known for their durability and effectiveness, making them a reliable option for a wide range of applications. Below are the various materials and customizable features that make these valves adaptable to the specific needs of different industries, providing optimal performance and longevity.

Design and Structure

Flanged-type gate valves feature a rising stem with an outside screw and yoke (OS&Y) design, making them easy to operate and providing clear visibility of the valve’s position. The flexible wedge inside the valve creates a tight seal, even if the valve is slightly misaligned, which helps prevent leaks and maintain system integrity.

Bonnet and Seat Ring Options

The bonnet, which covers the valve body, is bolted securely to the valve, providing a strong and reliable closure. Depending on the system’s needs, the seat ring, where the valve seals shut, can be either threaded or welded, offering flexibility in installation and maintenance.

Material Choices

These valves are constructed from various materials to suit different environments and requirements. Common materials include ASTM A216 WCB for carbon steel, A352 LCC or LCB for low-temperature carbon steel, and A351 CF8, CF8M, CF3, CF3M, and CN7M for stainless steel, which are known for their resistance to corrosion and high temperatures.

Standards Compliance for Flanged-Type Gate Valves

When it comes to flanged-type gate valves, following industry standards is essential to guarantee their reliability and safety in various industrial applications. These standards cover every aspect, from design and manufacturing to testing and inspection. Below are the key standards and features that these valves adhere to, making them suitable for a wide range of uses in different industries:

Design and Manufacturing Standards

Flanged-type gate valves are built according to strict industry standards to ensure they perform well and are safe to use. These standards include ANSI B16.34, API 600, API 6D, API 603, and BS 1414. These guidelines make sure the valves are designed and manufactured to meet the high demands of industrial applications.

Size and Dimensions

The valves come in various nominal diameters, ranging from 2 inches to 60 inches, to fit different pipelines. The face-to-face or end-to-end dimensions, which refer to the length of the valve, are standardized according to ANSI B16.10 and API 6D, making installation straightforward and consistent.

Flanged Connections

The connection points where the valve attaches to the pipeline are also standardized. For sizes between 2 inches and 24 inches, the valves follow the ANSI B16.5 standard. For larger sizes, ranging from 26 inches and up, they adhere to MSS-SP-44, ANSI B16.47 A series, or ANSI B16.47 B series standards, depending on the specific needs of the project.

Testing and Inspection

To make sure the valves are reliable, they undergo rigorous testing and inspection based on API 598 and API 6D standards. These tests check for any leaks, pressure handling, and overall quality before the valves are used in the field.

Operating Mechanisms

Flanged-type gate valves can be operated in different ways depending on the system’s requirements. They can be manually controlled, or use electric, conical gear, or pneumatic systems to open and close the valve. This flexibility allows the valves to be used in a wide range of industrial settings.

Materials

Dimensions

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Specs of Flanged Gate Valve

Valve Dimensions

Flanged Gate Valves come in a range of sizes to fit different pipes, ensuring compatibility and installation. They are measured by their diameter, usually ranging from 2 to 24 inches. The size of the valve must match the pipe for proper installation and operation. For example, a 6-inch valve fits a 6-inch pipe. Selecting the correct size prevents leakage, minimizes pressure loss, and ensures efficient performance.

Material and Construction

These valves are made from sturdy materials like stainless steel, carbon steel, or ductile iron, ensuring durability and longevity. The choice of material depends on the fluid type and operating conditions. Stainless steel is often used for its corrosion resistance, making it ideal for harsh environments. In contrast, carbon steel is preferred for high-pressure applications, while ductile iron offers a cost-effective solution for lower-pressure systems.

Pressure and Temperature Ratings

Flanged Gate Valves are built to handle high pressure and a wide range of temperatures. They can typically operate at pressures up to 300 PSI and temperatures from -20°C to 400°C. This makes them suitable for various industrial applications, from oil and gas to chemical processing. Just imagine the peace of mind knowing your system operates safely under any condition with NTVAL’s Flanged Gate Valves.

Features of Flanged Gate Valve

Robust Construction

Flanged Gate Valves are built with strong materials that provide durability and longevity. They are designed to handle tough industrial conditions without getting damaged easily. The robust construction allows the valves to withstand high pressure and harsh environments.

Full Bore Design

These valves feature a full bore design, meaning the opening inside the valve is the same size as the pipe. This design minimizes flow resistance and pressure drop, allowing fluids to pass through smoothly. It also helps in maintaining the efficiency of the system.

Reliable Sealing

Flanged Gate Valves are known for their reliable sealing capabilities. They use advanced sealing technology to prevent leaks, even under high pressure. This feature guarantees that the fluid flow can be completely stopped when the valve is closed, providing excellent control over the process.

Benefits of Flanged Gate Valve

Long Service Life

One of the main benefits of NTVAL's Flanged Gate Valves is their long service life. The high-quality materials and construction techniques used in these valves make them last for many years, reducing the need for frequent replacements.

Easy Maintenance

Flanged Gate Valves are designed for easy maintenance. They can be taken apart and reassembled without much effort, making it simple to replace worn-out parts. This feature saves time and reduces downtime in industrial operations.

Enhanced Safety

Flanged Gate Valves improve safety with a tight sealing mechanism that prevents leaks and reduces risks. This feature is crucial when handling hazardous fluids. Their reliability can streamline operations and boost confidence in the workflow.

Applications of Flanged Gate Valve

Oil and Gas Industry

Flanged Gate Valves are widely used in the oil and gas industry. They help control the flow of crude oil and natural gas in pipelines. These valves are essential for maintaining safety and efficiency in the extraction and transportation processes.

Water Supply Systems

These valves are also crucial in water supply systems. They regulate the flow of water in large pipelines, maintaining smooth distribution. NTVAL’s Flanged Gate Valves are perfect for providing reliable water flow in municipal and industrial settings.

Chemical Processing

In chemical processing, Flanged Gate Valves are used to manage the flow of various chemicals. These valves can handle corrosive and hazardous materials, making them ideal for this industry. Their reliable sealing and sturdy construction make them a safe choice for handling chemicals. But that’s not all, their versatility and robust design also reduce maintenance costs and enhance operational reliability across various sectors.

Steam and Boiling Systems

Flanged Gate Valves are used in steam and boiling systems to control the flow of steam and hot liquids. Their sturdy construction allows them to operate under high pressure and temperature, making them perfect for boilers and steam-powered equipment. These valves help maintain consistent flow, improving system performance and safety.

3 Considerations When Buying Flanged Gate Valve

01 Simple Mechanism

A simple mechanism in Flanged Gate Valves makes them easy to operate and maintain. Look for valves with straightforward designs that reduce the risk of operational errors. For example, a valve with a simple turning handle for opening and closing is user-friendly. This simplicity allows for smooth operation and quick repairs when needed.

02 End Connections

Pay attention to the type of end connections on the valve. Flanged Gate Valves typically have flanged ends, but the flange size and type must match your existing equipment. Confirm compatibility with your system’s flanges to avoid installation issues. Proper end connections are crucial for a secure and leak-free setup.

03 ISO or API Certification

When buying a Flanged Gate Valve, check for ISO or API certification. These certifications indicate that the valve meets high industry standards for quality and safety. Valves with these certifications are tested for reliability and performance. NTVAL’s Flanged Gate Valves are ISO and API certified, guaranteeing dependable operation. Just imagine the peace of mind and operational confidence this brings to your projects.

FAQS About Flanged Gate Valve

1. How is the quality of a Flanged Gate Valve maintained?

Quality is maintained through a comprehensive control system that includes multiple stages of production, testing, and inspection to guarantee reliability, durability, and performance.

2. Are Flanged Gate Valves suitable for both bi-directional flow?

Yes, Flanged Gate Valves are designed for bi-directional flow, allowing them to control fluid in both directions without compromising performance.

3. What certifications do NTVAL's Flanged Gate Valves have?

NTVAL’s Flanged Gate Valves are certified by ISO9001, ISO14001, ISO45001, API6D, and API607, ensuring compliance with international quality, environmental, and safety standards.

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NO.	Part name	Material
19	Grease nipple	Brass
18	Grub screw	Carbon steel
17	Hand wheel nut	Carbon steel
16	Hand wheel	Malleable Iron/cast steel/ducile Iron/fabricated steel
15	Yoke nut	Carbon steel/SS
14	Eye bolt and nut	A 193 B7/A1942H~A193 B8/A1948 etc.
13	Pin	Carbon steel/stainless steel
12	Stem nut	A 439-D2/Copper-alloy
11	Gland flange	Carbon steel/equivalent to body material
10	Gland	Stainless steel:A182 F6a,F304,F316,F304L,F316L etc.
9	Back seat	Stainless steel:A182 F6a,F304,F316,F304L,F316L etc.
8	Stem	Stainless steel:A182 F6a,F304,F316,F304L,F316L etc.
7	Seat ring	CS+SS13Cr/SS304/SS316+STL6 etc.
6	Wedge	Material see body

NO.	Part name	WCB	LCB	WC6	WC9
5	Bolt and nut	A193 Gr B7/A194 Gr 2H	A320 Gr L7/A194 Gr 4	A193 Gr B16/A194 Gr 4/7	A193 Gr B16/A194 Gr 4/7
4	Gland Packing	Graphite	Graphite	Graphite	Graphite
3	Gasket	Spiral wound/Soft Iron	Spiral wound/Soft Iron	Spiral wound/SS304	Spiral wound/SS304
2	Bonnet	A216 Gr WCB	A352 Gr LCB	A271 Gr WC6	A271 Gr WC9
1	Body	A216 Gr WCB	A352 Gr LCB	A271 Gr WC6	A271 Gr WC9

Class	Dimensions
150LB	Size		inch	2	2-1/2	3	4	6	8	10	12	14	16	18	20	24	26	28	30	32	34	36
	L-RF		mm	178	191	203	229	267	292	330	356	381	406	432	457	508	559	610	610	710	762	711
	L1-BW		mm	216	241	283	305	403	419	457	502	572	610	660	711	813	864	914	914	965	1016	1016
	L2-RTJ		mm	191	203	216	241	279	305	343	368	394	419	445	470	521	559	610	610	710	762	711
	H		mm	400	490	510	585	795	1015	1230	1465	1755	2030	2210	2510	2880	2930	3150	3200	3450	3600	3735
	K		mm	200	200	250	300	350	350	400	450	500	500	600	750	750	915	915	915	1000	1000	1000
	Wt	RF	kg	18	28	30	50	85	128	220	310	450	550	700	810	1130	1680	2230	2780	2860	3050	3700
		BW	kg	15	22	26	40	77	118	200	290	435	510	650	880	1100	1800	2200	2650	2950	3250	3520
		RTJ	kg	20	29	37	56	84	138	210	310	450	565	740	927	1125	1700	2235	2800	2900	3070	3750
300LB	Size		inch	2	2-1/2	3	4	6	8	10	12	14	16	18	20	24	26	28	30	32	34	36
	L-RE		mm	216	241	283	305	403	419	457	502	762	838	914	991	1143	1245	1346	1397	1524	1626	1727
	L1-BW		mm	216	241	283	305	403	419	457	502	762	838	914	991	1143	1245	1346	1397	1524	1626	1727
	L2-RTJ		mm	232	257	298	321	419	435	473	518	778	854	930	1010	1165	1270	1372	1422	1553	1654	1756
	H		mm	470	525	533	610	845	1050	1295	1600	1830	2035	2195	2470	2900	3100	3360	3650	3700	3750	3800
	K		mm	200	200	250	300	350	350	400	450	500	500	600	750	750	915	915	915	1000	1000	1000
	Wt	RF	kg	24	44	48	73	145	226	350	580	715	1050	1235	1655	2320	2860	3275	4230	4572	4850	5240
		BW	kg	24	44	48	73	145	226	350	580	715	1050	1235	1655	2320	2860	3275	4230	4572	4850	5240
		RTJ	kg	20	35	37	54	110	174	285	495	615	940	1090	1500	2100	2580	3300	4000	4350	4510	4895
600LB	Size		inch	2	2-1/2	3	4	6	8	10	12	14	16	18	20	24	26	28	30	32	34	36
	L-RF		mm	292	330	356	432	559	660	787	838	889	991	1092	1194	1397	1448	1549	1651	1778	1930	2083
	L1-BW		mm	292	330	356	432	559	660	787	838	889	991	1092	1194	1397	1448	1549	1651	1778	1930	2083
	L2-RTJ		mm	295	333	359	435	562	664	791	841	892	994	1095	1200	1407	1461	1562	1664	1794	1946	2099
	H		mm	495	550	615	735	1005	1245	1480	1730	1915	2050	2260	2620	2900	3075	3238	3600	3940	4250	4400
	K		mm	200	250	300	350	450	500	600	750	850	850	960	960	1000	1000	1250	1250	1500	1650	1800
	Wt	RF	kg	35	55	72	126	365	444	700	940	1310	1610	2070	2405	3810	4380	4910	5240	6835	7430	8800
		BW	kg	35	55	72	126	365	444	700	940	1310	1610	2070	2405	3810	4380	4910	5240	6835	7430	8800
		BTJ	kg	32	47	64	103	218	374	570	830	1012	1217	1760	2000	3200	3970	4280	4875	5615	6630	7610
900LB	Size		inch	2	2-1/2	3	4	6	8	10	12	14	16	18	20	24	26	28	30	32	34	36
	L-RF		mm	368	419	381	457	610	737	838	965	1029	1130	1219	1321	1549
	L1-BW		mm	368	419	381	457	610	737	838	965	1029	1130	1219	1321	1549
	L2-RTJ		mm	371	422	384	460	613	740	841	968	1038	1140	1232	1334	1568
	H		mm	590	700	740	870	1120	1390	1592	1765	2025	2175	2510	2750	3240
	K		mm	250	300	350	450	500	600	750	850	850	960	960	1000	1000
	Wt	RF	kg	59	79	115	198	407	725	1091	2161	2161	3197	4409	6063	7937
		BW		59	79	115	198	407	725	1091	2161	2161	3197	4409	6063	7937
		RTJ	kg	53	71	103	178	366	652	981	1945	1945	2877	3968	5456	7145
1500LB	Size		inch	2	2-1/2	3	4	6	8	10	12	14	16	18	20	24	26	28	30	32	34
	L-BE		mm	368	419	470	546	705	832	991	1130	1257	1384	1537	1664	1943
	L1-BW		mm	368	419	470	546	705	832	991	1130	1257	1384	1537	1664	1943
	L2-RTJ		mm	371	422	473	549	711	841	1000	1146	1276	1407	1559	1686	1972
	H		mm	615	705	750	927	1190	1525	1855	2185	2215	2380	2580	2195	3400
	K		mm	250	350	350	450	600	750	850	850	960	960	1000	1000	1250
	Wt	RF	kg	116	166	209	296	720	1275	2092	2951	4382	6355	8965	13100	15862
		BW	kg	116	166	209	296	720	1275	2092	2951	4382	6355	8965	13100	15862
		RTJ	kg	105	150	188	265	650	1145	1880	2655	3945	4752	8070	1790	14275

Trusted Flanged Gate Valve Manufacturer

Reliable Flanged Gate Valve

Quality Control

PMI Test

Sealing Test​

Low Emission Test​

Impact Test​

Dimension Inspection​

Painting Thickness Test​

PT

Material Inspection​

Our Valve Applications in Key Industries

Chemical Processing

Petrol Chemical

O.P.G & Nuclear

Pulp

Mining

Water & Sewage

Steam System

Boiling System

Get More Versatile Valve

Flanged-Type Gate Valves

Design and Structure

Bonnet and Seat Ring Options

Material Choices

Standards Compliance for Flanged-Type Gate Valves

Design and Manufacturing Standards

Size and Dimensions

Flanged Connections

Testing and Inspection

Operating Mechanisms

Materials

Dimensions

Want to Partner with an Expert Butterfly Gate Globe Check Ball Control Safety Valve Supplier?

Additional General Insights Here

Specs of Flanged Gate Valve

Valve Dimensions

Material and Construction

Pressure and Temperature Ratings

Features of Flanged Gate Valve

Robust Construction

Full Bore Design

Reliable Sealing

Benefits of Flanged Gate Valve

Long Service Life

Easy Maintenance

Enhanced Safety

Applications of Flanged Gate Valve

Oil and Gas Industry

Water Supply Systems

Chemical Processing

Steam and Boiling Systems

3 Considerations When Buying Flanged Gate Valve

01

Simple Mechanism

02

End Connections

03

ISO or API Certification

FAQS About Flanged Gate Valve

Dive Deeper Into Our Resources

Wait! Get a catalog.

Sealing Test

Low Emission Test

Impact Test

Dimension Inspection

Painting Thickness Test

Material Inspection