Flanged Butterfly Valve

Trusted Flanged Butterfly Valve Manufacturer

NTVAL provides durable Flanged Butterfly Valves designed for reliable performance in tough environments. Engineered for smooth operation and long-lasting service, our precision-manufactured valves meet high industry standards, making them ideal for large-scale projects.

Reliable Flanged Butterfly Valve

Controle de qualidade

The PMI test confirms the flanged butterfly valve’s material composition matches design standards, supporting consistent quality performance.

Teste PMI

The sealing test examines the valve’s closure, making certain it prevents leaks and maintains strong pressure control in different applications.

Teste de vedação

The low emission test detects any possible leaks, reducing the risk of harmful gases or fluids escaping into the environment.

Teste de baixa emissão

The impact test assesses the valve’s durability, allowing it to withstands sudden force or pressure changes without breaking.

Teste de impacto

The dimension inspection checks each component’s measurements, guaranteeing that all parts fit accurately for smooth operation.

Inspeção de dimensões

The painting thickness test verifies the coating’s thickness, protecting the valve from corrosion and prolonging its lifespan in harsh conditions.

Teste de espessura da pintura

PT, or penetrant testing, identifies tiny surface cracks or flaws, highlighting areas needing repair for improved safety.

PT

The material inspection assesses the raw materials’ quality, confirming they can handle the pressure and temperature required for safe valve operation.

Inspeção de materiais

Nossas aplicações de válvulas nos principais setores

Descubra como nossas soluções avançadas de válvulas melhoram o controle de fluxo, proporcionando maior eficiência, segurança e garantia de qualidade rigorosa.

Flanged butterfly valves handle corrosive chemicals effectively, offering precise flow control essential for safe chemical processing operations.

Processamento químico

In the petrochemical industry, these valves manage oil and gas flow under high pressure, maintaining stable operation in extreme temperature conditions.

Química da gasolina

Flanged butterfly valves perform well in nuclear and power generation settings, withstanding intense temperatures and high pressure for safe operation.

O.P.G. e Nuclear

These valves support the pulp industry by controlling thick fluids like slurry, offering reliable flow in heavy-duty processing environments.

Polpa

Mining operations rely on flanged butterfly valves to handle abrasive materials, providing durable flow control in demanding conditions.

Mineração

In water and sewage systems, flanged butterfly valves offer dependable control over large fluid volumes, supporting continuous operations.

Água e esgoto

Flanged butterfly valves regulate steam flow accurately, helping maintain consistent pressure and temperature within extensive steam distribution networks.

Sistema de vapor

In boiling systems, these valves control hot water and steam flow, contributing to safe, efficient heat management in high-temperature settings.

Sistema de ebulição

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Main Features of the Product

High Temperature and Pressure Resistance: The metal seat performs exceptionally well in extreme conditions, maintaining a tight seal even at high temperatures and pressures.
Construção durável: Designed to handle abrasive materials, this valve is perfect for situations where soft-seated valves would fail.
Pneumatic Actuation: Equipped with a pneumatic actuator, this valve allows for quick, dependable, and remote operation, making it ideal for automated systems.
Zero Leakage: The metal-to-metal seal provides a tight shutoff with minimal leakage, meeting strict industrial standards.
Baixa manutenção: Built for a long service life with minimal upkeep, this valve helps reduce downtime and operational costs.

Aplicativos

The Metal Seated Flanged Butterfly Valve with Pneumatic Actuator is commonly used in a variety of industries, including:

Power Generation: Perfect for managing high-temperature steam and high-pressure applications.
Oil and Gas: Suitable for controlling the flow of crude oil, natural gas, and other hydrocarbons.
Petrochemical: Capable of handling aggressive chemicals, high temperatures, and abrasive materials.
Mining: Its sturdy design makes it ideal for handling slurry and abrasive media.
Water Treatment: Used in situations where strong sealing is needed, especially with corrosive or abrasive water.
Pulp and Paper, Steel Mills: Effective in processes involving high-temperature and high-pressure fluids, as well as abrasive materials.
Offshore Plants: Designed to withstand harsh marine environments, making it suitable for offshore oil and gas platforms.
Ship Building: Used in various ship systems where reliable flow control and durability are required.

Especificações técnicas

Dimensões

Technical Data

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Specs of Flanged Butterfly Valve

Dimension

Flanged Butterfly Valves are available in a range of sizes to suit different pipeline requirements. These valves typically come in sizes ranging from 2 inches to 48 inches, making them versatile for various applications. Choosing the correct dimension is crucial for achieving proper fit and effective flow control within the system. At NTVAL, we offers a wide selection of dimensions, helping clients find the perfect fit for effective flow control.

Classificação de temperatura

This valve is engineered to operate effectively across a wide temperature spectrum, typically handling temperatures from -20°C to 200°C. This capability allows it to perform reliably in both extreme cold and high-heat conditions. I find that this versatility makes it well-suited for a variety of demanding applications, where maintaining consistent performance under fluctuating temperatures is crucial.

Disc and Seat Material

The disc of this valve is commonly made from stainless steel or ductile iron, providing strong and reliable operation. The seat is often crafted from EPDM, PTFE, or rubber, which helps achieve a tight seal and prevents leakage. These materials are selected for their durability and compatibility with various fluids, providing long-lasting performance and minimal maintenance.

Features of Flanged Butterfly Valve

Design compacto

Flanged Butterfly Valves have a compact design, ideal for tight spaces in piping systems. This feature simplifies installation and maintenance, making them perfect for applications with limited space, without needing significant system modifications.

Bi-Directional Sealing

These valves feature bi-directional sealing, allowing them to provide a tight seal in both flow directions. This design guarantees that the valve can effectively prevent leaks and maintain system integrity, regardless of the direction in which the fluid is flowing.

Adjustable Stem Packing

Flanged Butterfly Valves include adjustable stem packing, allowing easy adjustments to prevent leakage around the stem. This feature contributes to the valve's long-term reliability by maintaining a tight seal and minimizing maintenance needs.

Benefits of Flanged Butterfly Valve

Reduced Pressure Loss

These valves help in reducing pressure loss within the system due to their streamlined design, which allows fluids to pass through with minimal resistance. This benefit is crucial in maintaining system efficiency and conserving energy in various industrial processes.

Segurança aprimorada

Flanged Butterfly Valves improve safety in industrial operations. Their reliable sealing prevents leaks and maintains system integrity, reducing the risk of accidents or malfunctions in critical processes. For optimal performance and safety, choose NTVAL for your operations.

Easier Installation

These valves promote easier installation and maintenance due to their flanged connection and straightforward design. The simplicity of installing and servicing these valves minimizes downtime and labor costs, making them a practical option for various industrial applications.

Applications of Flanged Butterfly Valve

Processamento químico

Flanged Butterfly Valves are commonly used in chemical processing plants, where they manage the flow of various chemicals and fluids. You won’t believe that their corrosion-resistant materials and reliable sealing capabilities make them suitable for handling aggressive substances, providing safe and efficient operation in processes like mixing, reaction, and transport.

Geração de energia

In power generation plants, Flanged Butterfly Valves are used to regulate the flow of steam, water, and other fluids within boilers, cooling systems, and turbines. Their ability to handle high temperatures and pressures makes them a reliable choice for maintaining efficient and safe operations in power generation facilities.

Dutos de petróleo e gás

In the oil and gas industry, Flanged Butterfly Valves are used to control the flow of crude oil, natural gas, and other hydrocarbons within pipelines. Their ability to withstand high pressures and harsh conditions makes them ideal for upstream and downstream applications, providing efficient flow management across the entire pipeline system. If you are in this industry and looking for the best Flanged Butterfly Valve, consider NTVAL.

Water Distribution Systems

Flanged Butterfly Valves are essential in municipal and industrial water distribution systems, where they control the flow and pressure of wat across extensive pipelines. Their durable design and reliable sealing capabilities make them well-suited for managing large volumes of water, contributing to the efficient operation of distribution networks.

3 Considerations When Buying Flanged Butterfly Valve

01 Flanged End Connection Type

Confirm that the valve has a flanged end connection type to match your existing piping system. Wanna know why? For example, if your current setup uses flanged connections, choosing a valve with the same connection type simplifies installation and reduces the risk of leaks, making the process more efficient.

02 Low Emission Packing

Consider valves with low emission packing, especially if your application involves handling hazardous material or volatile substances. For example, if your system processes chemicals, low emission packing is crucial to minimize leakage, protecting both the environment and your personnel from potential harm.

03 1 Year Warranty Period

Choose a Flanged Butterfly Valve with at least a 1-year warranty. A warranty provides assurance that the manufacturer stands behind the product’s quality and protects against potential defects during initial use. At NTVAL, we offer an 18-month guarantee from the delivery date, ensuring confidence in your purchase and long-term reliability.

FAQS About Flanged Butterfly Valve

1. Can Flanged Butterfly Valves be used for high-pressure applications?

Yes, Flanged Butterfly Valves are suitable for high-pressure applications. Their flanged connection design provides a secure attachment for handling high-pressure environments effectively.

2. What after-sales services does NTVAL offer for Flanged Butterfly Valves?

NTVAL provides technical assistance and troubleshooting for any issues that arise with the valves. Clients can also receive replacement parts or a new valve within the warranty period if needed.

3. What certifications do Flanged Butterfly Valves hold?

These valves are certified under various international standards, including ISO9001, ISO14001, and ISO45001. These certifications verify that the valves comply with strict quality, environmental, and safety regulations.

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Especificação	Padrão
Cara a cara	API 609 (Wafer)
Flange de extremidade	ASME B16.5
Wafer Ends	API 609/ MSS-SP-68 ISO 5752
Classe	ASME CL150~CL600

DIMENSÕES DA CLASSE 150
					DIMENSÃO DO FLANGE										BASE DE MONTAGEM
TAMANHO (pol.)	L	D	g	C	t	h	a	n1	h1	H	H1	H2	D2	L1	TYPE	C1	n	h2	W.T(kg) Unidade: mm
3	114	191	127	152.4	19.1	5/8-11	15.8	4	19.1	282	258	142	200	165	F07	70	4	9	27
4	127	229	157.2	190.5	24	5/8-11	15.8	8	19.1	294	270	162	200	165	F07	70	4	9	35
5	140	254	185.7	215.9	24	3/4-10	19.1	8	22.2	319	295	170	200	165	F07	70	4	9	41
6	140	279	215.9	241.3	25.4	3/4-10	19.1	8	22.2	340	316	179	200	165	F07	70	4	9	45
8	152	343	269.7	298.4	28.5	3/4-10	19.1	8	22.2	384	344	208	300	270	F10	102	4	11	68
10	165	406	323.9	361.9	30.3	718-9	22.2	12	25.4	434	394	241	300	270	F10	102	4	11	97
12	178	483	381	431.8	31.8	718-9	22.2	12	25.4	520	470	267	400	335	F14	140	4	18	133
14	190	533	412.8	476.3	35.1	1-8	25.4	12	28.6	544	494	316	400	335	F14	140	4	18	188
16	216	597	469.9	539.7	36.6	1-8	25.4	16	28.6	643	578	349	500	375	F16	165	4	22	238
18	222	635	533.4	577.8	39.7	1-1/8-8	28.6	16	31.8	660	595	381	500	375	F16	165	4	22	302
20	229	699	584.2	635	43	1-1/8-8	28.6	20	31.8	695	630	412	500	375	F16	165	4	22	380
24	267	813	692.2	749.3	47.8	1-1/4-8	31.8	20	35.1	813	743	473	600	485	F25	254	8	18	599
DIMENSÕES DA CLASSE 300
					DIMENSÃO DO FLANGE										BASE DE MONTAGEM
TAMANHO (pol.)	L	D	g	C	t	h	a	n1	h1	H	H1	H2	D2	L1	TYPE	C1	n	h2	W.T(kg) Unidade: mm
3	114	210	127	168.2	28.5	3/4-10	19.1	8	22.2	282	258	142	200	165	F07	70	4	9	29
4	127	254	157.2	200	31.8	3/4-10	19.1	8	22.2	294	270	162	200	165	F07	70	4	9	39
5	140	279	185.7	234.9	35	3/4-10	19.1	8	22.2	319	295	170	300	270	F10	102	4	11	52
6	140	318	215.9	269.8	36	3/4-10	19.1	12	22.2	375	336	199	300	270	F10	102	4	11	63
8	152	381	269.7	330.2	41.2	7/8-9	22.2	12	25.4	450	400	227	400	335	F14	140	4	18	101
10	165	445	323.9	387.3	47.8	1-8	25.4	16	28.6	499	449	265	400	335	F14	140	4	18	176
12	178	521	381	450.8	50.8	1-1/8-8	28.6	16	31.8	562	497	302	500	375	F16	165	4	22	210
14	190	584	412.8	514.3	53.9	1-1/8-8	28.6	20	31.8	616	551	328	500	375	F16	165	4	22	315
16	216	648	469.9	571.5	57.2	1-1/4-8	31.8	20	35.1	676	606	367	600	485	F25	254	8	18	440
18	222	711	533.4	628.6	60.5	1-1/4-8	31.8	24	35.1	711	641	402	600	485	F25	254	8	18	558
20	229	775	584.2	685.8	63.5	1-1/4-8	31.8	24	35.1	798	721	432	700	520	F30	298	8	22	670
24	267	814	692.2	812.8	69.9	1-1/2-8	38.1	24	41.2	914	837	530	700	515	F30	298	8	22	1025
DIMENSÕES DA CLASSE 300
					DIMENSÃO DO FLANGE										BASE DE MONTAGEM
TAMANHO (pol.)	L	D	g	C	t	h	a	n1	h1	H	H1	H2	D2	L1	TYPE	C1	n	h2	W.T(kg) Unidade: mm
3	180	210	127	168.2	31.8	3/4-10	19.1	8	22.2	289	265	148	200	165	F07	70	4	9	37
4	190	273	157.2	215.9	38.1	7/8-9	22.2	8	25.4	370	330	180	300	270	F10	102	4	11	55
5	200	330	185.7	266.7	44.5	1-8	25.4	12	28.6	405	355	195	400	335	F14	140	4	18	86
6	210	356	215.9	292.1	47.8	1-8	25.4	12	28.6	420	370	225	400	335	F14	140	4	18	109
8	230	419	269.7	349.2	55.7	1-1/8-8	28.6	12	31.8	490	425	255	500	375	F16	165	4	22	192
10	250	508	323.9	431.8	63.5	1-1/4-8	31.8	16	35.1	545	480	310	500	375	F16	165	4	22	296
12	270	559	381	488.9	66.6	1-1/4-8	31.5	20	35.1	630	560	330	600	485	F25	254	8	0	390

PRESSURE/TEMPERATURE RATING (REF.ASME B16.34)						MAXIMUM WORKING PRESSURE,kgf/cxA
TEMPERATURE	CLASS 150			CLASS 300			CLASS 600
(i æ)	WCB	CF8M	WC9	WCB	CF8M	WC9	WCB	CF8M	WC9
-29to38	20	19.3	20.4	52	50.6	52.7	104.1	101.2	105.5
93	18.3	16.9	18.3	47.5	43.6	50.3	94.9	87.2	100.5
149	16.2	15.1	16.2	46.1	39.4	47.5	92.5	78.8	95.3
204	14.1	13.7	14.1	44.7	36.2	45.7	89.3	72.4	91.1
260	12	12	12	42.2	33.8	45	84.4	67.1	90
316	9.8	9.8	9.8	38.7	31.6	42.5	77	63.6	85.1
343	8.8	8.8	8.8	37.6	31.3	41.5	75.6	62.6	82.6
371	7.7	7.7	7.7	37.6	30.3	40.1	74.9	60.8	79.8
399	6.7	6.7	6.7	35.5	29.9	37.3	71	59.4	74.9
427	5.6	5.6	5.6	28.8	29.2	35.9	58	58.4	71.4
454	4.6	4.6	4.6	19	28.5	34.1	37.6	57	68.6
482	3.5	3.5	3.5	12	27.8	31.6	24.3	55.5	53.1
510	2.5	2.5	2.5	7.4	27.1	26.7	14.4	54.5	37.6
538	1.4	1.4	1.4	3.5	25.7	19	7.4	51	28.1
566		1.4(1)	1.4(1)		25.3	14.1		50.6	15.8
593		1.4(1)	1.4(1)		22.9	8.1		45.4	14.4
624		1.4(1)	1.4(1)		19.3	7.4		38.7	11
649		1.4(1)	1.4(1)		14.4	3.9		28.8

FLOW COEFFICIENT VALUE(Cv)
CLASSE	3″	4″	5″	6″	8″	10″	12″	14″	16″	18″	20″	24″ Unidade: mm
150#	195	345	500	827	1523	2698	4032	5674	7880	10594	13292	19604
300#	195	345	500	786	1447	2563	3830	5390	7486	10064	12627	18624
600#	195	345	475	746	1374	2435	3640

TORQUE DATA
MAX,△P (kdf/cm²)	3″	4″	5″	6″	8″	10″	12″	14″	16″	18″	20″	24″ Unidade: mm
10.5(150PSIG)	2.8	4.9	6.8	11	19.3	29.8	51.2	61.7	86.5	143	181.8	272.5
20.0(285PSIG)	5.4	9.3	13	20.8	36.5	56.4	96.8	116.5	163.1	271	342.1	510.7
28.1(400PSIG)	7.6	13	18.2	29.1	52.3	81.5	134.2	169.3	236.8	386	495.1	735.1
42.2(600PSIG)	11.3	19.6	27.3	43.7	78.4	122.1	201	253.6	354.5	578	741	1098.9
52.0(740PSIG)	14	24.1	33.6	53.9	96.7	150.5	247.8	312.6	436.8	712.3	913.1	1353.5
104.1(1480PSIG)36.4		66.2	90.1	144.9	284.6	449.4	642.5
The torque shown in the above chart is actuator sizing torque at the maximum differential pressure.