High Performance Double Half Shaft Wafer Butterfly Valves

Double Half Shaft Wafer Butterfly Valve Introduction

High performance Double Half Shaft Wafer Butterfly Valves are precision-engineered flow control devices designed for compact pipeline installations in industrial, chemical, HVAC, and water treatment systems. Featuring a double shaft structure and wafer-style body, these valves provide excellent sealing performance, low operating torque, and superior corrosion resistance under harsh operating conditions.

Whether you're looking for gear-operated wafer butterfly valves, lever-handle double shaft valves, or EN 593 / API 609 certified flow control solutions, our products ensure reliable performance and long service life.

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Product Description

Double Half Shaft Wafer Butterfly Valves for Water Treatment Systems

Double Half Shaft Wafer Butterfly Valves for water treatment systems are specifically designed to provide reliable and efficient flow control in both clean and wastewater applications. With a compact wafer-style body and a robust double shaft structure, these butterfly valves ensure tight shutoff, low torque operation, and minimal pressure drop, making them ideal for municipal water facilities, filtration plants, and industrial effluent treatment lines.

Available with EPDM or NBR seats, stainless steel discs, they support both manual and automated actuation. These valves are corrosion-resistant, easy to install, and maintain high performance under variable pressure and flow conditions, offering long service life for critical water treatment pipelines.

Cast iron Double Half Shaft Wafer Butterfly Valves

Our company specializes in manufacturing butterfly valves using high-grade ductile cast iron, chosen for its excellent strength-to-weight ratio, corrosion resistance with proper coating, and outstanding pressure-bearing capability. Compared to stainless steel or bronze alternatives, cast iron offers superior value for large-scale installations while maintaining mechanical durability and thermal stability. Trusted by OEMs and engineers worldwide, we combine material expertise with strict quality control to meet demanding international standards.

Global Standard Double Shaft Wafer Butterfly Valves

Our double shaft wafer butterfly valves are fully compliant with EN 593, ensuring standardized face-to-face dimensions, tight shut-off performance, and compatibility with ISO 5211 mounting systems. All our valves undergo strict quality control and pressure testing in accordance with international guidelines, giving users confidence in both performance and safety.

Technical Parameter

Part & Materials

No	Part	Material
1	Body	Ductile Iron GGG50
2	Disc	DI/CF8/CF8M
3	Shaft	SS410
4	Seat	EPDM /NBR
5	Sleeve	Polymer
6	Handle/Gear Box	Steel/Aluminum/CI

Dimensions(mm)

DN	L	H1	H2	H3	Flange Type.	K	F	d	N-d1	I
DN40	33	128	65	29	F05	65	50	35.5	4-8	9*9
DN50	43	129	75	29	F05	65	50	35.5	4-8	9*9
DN65	46	136	82	29	F05	65	50	35.5	4-8	9*9
DN80	46	153	99	29	F05	65	50	35.5	4-8	9*9
DN100	52	171	110	29	F07	90	70	55.5	4-10	11*11
DN125	56	193	125	29	F07	90	70	55.5	4-10	14*14
DN150	56	209	145	29	F07	90	70	55.5	4-10	14*14
DN200	60	251	170	35	F10	125	102	70.5	4-12	17*17
DN250	68	281	210	35	F10	125	102	70.5	4-12	19*19
DN300	78	316	238	35	F10	125	102	70.5	4-12	22*22
DN350	78	348	260	45	F10	125	102	70.5	4-12	22*22
DN400	102	386	295	51.2	F14	175	140	100.5	4-18	27*27

Technical Data

No	Description	Specification
1	Nominal Dia	DN40-DN1200
2	Nominal Pressure	PN10/16&10K&Class 125/150
3	Valve Design Standard	EN593
4	Face to Face Standard	EN558&ISO5752 Series-20
5	Expoxy Coating	Epoxy powder coating RAL5005 with minimum thickness of 250 microns inside and outside.
6	Working Temperature(Max)	120/80℃

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