Wafer Butterfly Valve

Application

Ductile iron Wafer Butterfly Valve

Our TDY model resilient seated concentric butterfly valves are an integral component for industrial applications, serving the crucial role of regulating fluid flow within pipelines. The term “resilient” is indicative of its seat material, typically composed of flexible substances like rubber or elastomers, enabling adaptability to varying pressures and temperatures.

Characterized by a concentric design, the valve features a shaft that passes through the center of the disc.

Series TDY
Type Concentric Resilient Seal
Size DN50-500mm, NPS 2"-20"
Design Standard EN 593, API 609
Pressure Rating PN10/PN16/125LB/150LB/10K
Certificate ISO, CE, WRAS, ACS
Sample Available
Service OEM & ODM

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Features

Specifications

Dimension

Features

Operation Cycles	Over 100,000 times
Leakage Level	Bubbles-tight sealing with no leakage
Low Torque	Operation easy and flexible
Bidirectional Sealing	Any installation position
Lower Cost	Simple and compact structure with high cost-effectiveness
Low Flow Resistance	Improve fluid efficiency and reduce energy consumption
Sealing Materials	Rich variety over 15 types
Coating Grade	Conventional and special conditions of C1-C5 & CX
Wide Application	Water treatment, petrochemicals, Marine vessels, mining, electricity etc
Certificates	ISO9001, CE, WRAS

Specifications

Design Standard	EN 593 API 609
Top Flange Standard	ISO 5211
End Flange Standard	EN1092 PN10/16, ANSI 125LB/150LB, JIS 10K, BS 10
Face to Face Dimension	API 609, EN558-1 Series 20, BS5155, DIN3202 K1
Testing Standard	API 598, EN12266
Temperature	-20℃~120℃ (depends on the sealing material)
Body Material	Cast Iron, Ductile Iron
Disc Material	Ductile Iron, Stainless Steel, Aluminum Bronze
Shaft Material	Stainless Steel, Aluminum Bronze, Inconel
Seat Materia	EPDM, NBR, WRAS EPDM, VITON, Silicone
Operator	Lever, Gearbox, Pneumatic, Electric Actuator

Dimension

Size	D	□T	PN10		PN16		ANSI 150LB		Top Flange
Size	D	□T	Ф D 1	n - Ф d	Ф D 1	n - Ф d	Ф D 1	n - Ф d	Top Flange
DN50	43	9*9	125	4-19	125	4-19	120.6	4-19	F05
DN65	46	9*9	145	4-19	145	4-19	139.7	4-19	F05
DN80	46	9*9	160	4-19	160	4-19	152.4	4-19	F05
DN100	52	11*11	180	4-19	180	4-19	190.5	4-19	F07
DN125	56	14*14	210	4-19	210	4-19	215.9	4-22.4	F07
DN150	56	14*14	240	4-23	240	4-23	241.3	4-22.4	F07
DN200	60	17*17	295	4-23	295	4-23	298.4	4-22.4	F10
DN250	68	19*19	350	4-23	355	4-28	361.9	4-25.4	F10
DN300	78	22*22	400	4-23	410	4-28	431.8	4-25.4	F10
DN350	78	22*22	460	4-23	470	4-28	476.2	4-28.4	F10
DN400	102	27*27	515	4-28	525	4-31	539.7	4-28.4	F14
DN450	114	27*27	565	4-28	585	4-31	577.8	4-31.8	F14
DN500	127	36*36	620	4-28	650	4-34	635	4-31.8	F14

Take A Seat

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Material

Applications

Temperature

EPDM

Water, Sea Water, Alcohols, Organic Salt Solutions, Mineral Acid Solutions, Mineral Based Alkalines

-20°C +110°C

High Temperature EPDM

Super Heated Water

-20°C +130°C

NBR Buna

Mineral & Vegetable Oils, Gas, Non Aromatic Hydrocarbons, Animal Fats, Vegetable Fats, Air

-10°C +80°C

Hypalon

Mineral Acid Solutions, Organic & In-Organic Acids, Oxidising Solutions

-10°C +80°C

Viton

Acids, Fats, Hydrocarbons, Vegetable & Mineral Oils, Fuels

-5°C +180°C

Polyisoprene

Water, Alcohols, Abrasive Substances (Call To Check), Ketones

-10°C +60°C

Silicone

Low & High Temperature Resistance Applications

-30°C +150°C

High Temp Silicone

Super Heated Water

-50°C +160°C

Epichlorohydrin

Ozone Resistance, Hydrocarbons, Aromatic Oils

-25°C +145°C

RAQ

What is a wafer butterfly valve? +

Wafer butterfly valve is installed between two pipe flanges and secured by flange bolts. It features a compact, lightweight design and is widely used for isolating or regulating fluid flow.

What materials are available for wafer butterfly valves? +

They are commonly available in ductile iron, cast iron, stainless steel, carbon steel and sometimes aluminium bronze, with seat options like EPDM, NBR, or PTFE depending on the application.

What are the advantages of wafer-style butterfly valves? +

The main advantages of wafer-style butterfly valves are their compact, lightweight construction, which reduces material and installation costs, easy sandwich mounting between flanges without extra hardware, and reliable bi-directional sealing for isolation or flow regulation in tight spaces.

What applications are these valves typically used in? +

They are widely used in water systems, HVAC, general industrial processes, and low to medium pressure applications.

Is this butterfly valve suitable for use on water? +

Yes, wafer butterfly valves are highly suitable for water applications. They are commonly used in water treatment, irrigation, cooling water systems, and distribution pipelines due to their corrosion-resistant lining options (such as EPDM or NBR), reliable shut-off, and low pressure drop.

Water Treatment

Marine & Ocean

HAVC & Fire

Electricity & Energy

Oil & Chemical

Mining & Metallurgy

Ductile iron Wafer Butterfly Valve

Features

Specifications

Dimension

Take A Seat

Choose Your Seat

RAQ

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