What types of industrial valves does Tianjin Top Valve manufacture?

We manufacture resilient-seated butterfly valves (wafer, lug, double-flanged and grooved-end), check valves (dual plate, wafer lift, silent and ball type), resilient seat gate valves (rising stem, non-rising stem, buried and DIN pattern), globe valves for water, ammonia, vacuum and power-station service, as well as ball valves and eccentric plug valves.

Are your butterfly valves approved for drinking water?

Selected models, including 4020G, 4020L, 4325G and 4325L, are WRAS approved for potable water applications. Request our catalog to receive the approval reference and material declaration for each model.

Do you produce your own rubber seats and castings?

Yes. Our group operates Tianjin Dongfang Rubber Factory (since 1987) and Tianjin Donglian Valve Factory (since 1996), with an independent foundry, rubber compounding and moulding, a CNC machining center, assembly lines and a physical and chemical laboratory. This lets us control elastomer quality and casting integrity in-house.

Which quality and management certifications do you hold?

Our management system meets ISO 9001 quality management, ISO 14001 environmental management and ISO 45001 occupational health and safety standards, together with EU (CE) conformity for applicable products.

Can you supply valves to international flange and dimension standards?

Depending on the model, valves can be supplied with flange drilling to EN 1092 PN10/PN16, ASME/ANSI Class 125/150, BS and JIS, and our German-standard gate valves follow DIN face-to-face dimensions. Always confirm the exact standard on the model datasheet before ordering.

How can I get datasheets, drawings and a product catalog?

Request a catalog online or email victor@dytopvalve.com with your size, pressure rating, media and connection type. Our engineering team replies within 24 hours with datasheets, dimensional drawings and material specifications.

Where is your factory located and how are orders shipped?

Our factory is in the Wuxia Industrial Park, Dongli District, Tianjin, China, with fast road access to Tianjin Port. We export to customers in more than 50 countries using protective packaging and sea, air or rail freight.

High-Quality EPDM Lining Butterfly Valve - Durable & Corrosion Resistant Suppliers, Manufacturers

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High-Quality EPDM Lining Butterfly Valve - Durable & Corrosion Resistant Suppliers, Manufacturers

Thin disc, resilient seat, split body (two piece) design allows for easy field replacement of seat & disc/stem. One-piece thin profile disc/stem (316SS) results in maximum flow rates, lowest pressure drops (high CV) and best control capabilities. Suitable for installation between ANSI Class 125/150 flanges. Wafer style cast iron bodies (stainless and lug style also available). Replaceable EPDM seats standard (Buna & PTFE lined available)

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Product Description

Advantages

Cost-effectiveness

These valves are often more affordable due to their simple design and fewer components. Their manufacturing cost is relatively low, and they also require less maintenance over time, making them an attractive option for large-scale installations where multiple valves are needed.

Compact and Lightweight

Turbine operated butterfly valves have a compact structure and are lightweight. This feature makes them ideal for installations with limited space or where weight restrictions are a concern. Their compactness also simplifies transportation and storage.

Quick Operation

They can be operated rapidly. With a quarter-turn of the turbine, the valve can change from fully open to fully closed or vice versa, enabling efficient and precise flow control. This is especially beneficial in applications that demand frequent adjustments or an immediate response to changing flow conditions.

Low-Pressure Drop

The streamlined design of the butterfly valve disc allows the flowing medium to pass with minimal pressure drop. This characteristic reduces energy consumption, as less energy is required to push the fluid through the valve. It also helps maintain system performance and can minimize the need for additional pumping power.

Good Sealing Performance

Many turbine operated butterfly valves are designed with high-quality sealing materials, such as rubber or PTFE. This ensures a tight shut-off when the valve is closed, preventing leakage and ensuring the integrity of the system.

Specifications

Nominal Diameter

Turbine operated butterfly valves are available in a wide range of nominal diameters, typically from DN50 to DN2000. This wide size range makes them suitable for use in small-scale and large-scale pipelines.

Nominal Pressure

They can withstand different nominal pressures, commonly ranging from 0.6MPa to 1.6MPa. However, valves with higher pressure ratings are also available for specific applications.

Temperature Range

The applicable temperature range varies depending on the materials used in the valve construction. Generally, they can operate in temperatures from -20°C to +150°C. Special materials may extend this range for high-temperature or low-temperature applications.

Body Materials

The valve body can be made from various materials, including cast iron, ball-ductile iron, cast steel, and stainless steel. Each material has its own properties, such as corrosion resistance and strength, making them suitable for different media and operating conditions.

Drive Modes

In addition to turbine operation, they can also be equipped with manual, electric, or pneumatic actuators, providing flexibility in operation according to the requirements of the system.

Turbine Operated Butterfly Valve Specification Image

Market Applications

Water and Wastewater Treatment

Turbine operated butterfly valves are widely used in water supply systems to control the flow of clean water. In wastewater treatment plants, they are used to manage the flow of sewage and sludge. Their ability to handle large volumes of fluid with low-pressure drop makes them suitable for these applications.

HVAC Systems

In heating, ventilation, and air-conditioning systems, these valves are used to regulate the flow of air and water. Their quick operation and precise flow control capabilities help maintain comfortable indoor environments.

Chemical and Petrochemical Industries

Due to their corrosion-resistant body materials and good sealing performance, they are used in the chemical and petrochemical industries to control the flow of various chemicals, gases, and oils.

Power Generation

In power plants, whether thermal, hydro, or nuclear, turbine operated butterfly valves are used in water-steam cycles, cooling water systems, and fuel handling systems. They play a crucial role in ensuring the efficient operation of power generation equipment.

Food and Beverage Industry

In this industry, where hygiene and cleanliness are of utmost importance, the smooth-surfaced and easy-to-clean design of these valves makes them suitable for controlling the flow of food-grade fluids.

In conclusion, turbine operated butterfly valves, with their numerous advantages, diverse specifications, and wide-ranging market applications, are an essential part of modern industrial infrastructure.

Technical Dimensions & Drawings

DIMENSIONS in (mm) - DN50 to DN300

Size	A	B	C2	D	E	F	KxK	Top Plate
Size	A	B	C2	D	E	F	KxK	PCD	HOLE N-Dia
DN50	140	70	105	41	90	30	11x11	70	4-θ9
DN65	152	76	117	44	90	30	11x11	70	4-θ9
DN80	159	91	130	44	90	30	11x11	70	4-θ9
DN100	178	102	162	51	90	30	14x14	70	4-θ9
DN125	191	119	187	54	90	30	14x14	70	4-θ9
DN150	203	133	216	54	90	30	17x17	70	4-θ11
DN200	241	170	271	64	125	30	17x17	102	4-θ11
DN250	273	210	330	64	125	30	22x22	102	4-θ11
DN300	308	243	376	76	125	30	22x22	102	4-θ11

DIMENSIONS in (mm) - DN350 to DN600

Size	A	B	C2	D	E	F	K	SxS/d	Top Plate Data
Size	A	B	C2	D	E	F	K	SxS/d	PCD
DN350	413	267	45	150	80	525	470	22x22	125
DN400	451	309	45	175	90	585	525	27x27	140
DN450	467	318	45	175	109	650	585	27x27	140
DN500	525	350	45	175	127	720	650	36x36	140
DN600	607	410	45	210	154	850	770	36x36	165

PN10 Dimensions

Size	A	B	C	L	фD	фK	Nxфd	4xM	фE	фF	a°	G	H	O	P	фR	Weight(Kg)
DN700	784	581	163	169	895	840	24xф31	/	741	695	15	355	146	146	228	400	361
DN800	832	655	188	195	1015	950	24xф34	/	847	794.7	15	355	146	146	228	400	444
DN900	974	745	203	211	1115	1050	24xф34	4xM30	943	864.7	12.857	377	170	170	243	450	660
DN1000	1054	803	216	224	1230	1160	24xф37	4xM33	1049	965.7	12.857	377	170	170	243	450	830

PN16 Dimensions

Size	A	B	C	L	фD	фK	Nxфd	4xM	фE	фF	a°	G	H	O	P	фR	Weight(Kg)
DN700	784	581	163	169	910	840	20xф37	4xM33	741	695	15	355	146	146	228	400	396
DN800	926	655	188	195	1025	950	20xф40	4xM36	847	794.7	15	377	170	170	243	450	573
DN900	974	745	203	211	1125	1050	24xф40	4xM36	943	864.7	12.857	377	170	170	243	450	690
DN1000	1110	803	216	224	1255	1170	24xф43	4xM39	1049	965.7	12.857	476	180	250	302	450	1025

Turbine Operated Butterfly Valve Product

Frequently Asked Questions

What is a turbine operated butterfly valve?

It is a quarter-turn flow control valve equipped with a geared turbine (gearbox) operator that allows smooth and precise opening or closing with minimal operational torque.

What size ranges are standard for these valves?

Standard sizes typically range from DN50 up to DN2000, making them adaptable for diverse pipeline requirements from small municipal networks to massive industrial systems.

What materials are typically used for construction?

The valve bodies are commonly constructed using cast iron, ductile iron, cast steel, or stainless steel, with seat options such as rubber or PTFE for reliable sealing.

Can these valves be automated?

Yes. While designed for turbine manual operation, they can easily be adapted with electric, pneumatic, or hydraulic actuators according to automation demands.

What is the pressure rating for turbine operated butterfly valves?

Common working pressure ratings range from 0.6 MPa to 1.6 MPa (PN10/PN16), with higher ratings available depending on specific process parameters.