Description

Contents hide

1 Buy Butterfly Valve PZD671X Class 150 Ductile Iron Wafer Pneumatic Diaphragm Operated

1.1 Specifications

1.2 Main Valve Components and Materials

1.3 Main Connection Dimensions (Unit: mm)

1.4 FAQ

Buy Butterfly Valve PZD671X Class 150 Ductile Iron Wafer Pneumatic Diaphragm Operated

The PZD671X Pneumatic Diaphragm Butterfly Valve by VALVEHU is an ideal choice for industrial flow control in applications requiring corrosion resistance, lightweight construction, and reliable actuation. Designed for low-pressure pipelines (rated to 1.0MPa or Class 150), this valve operates using a pneumatic diaphragm actuator that provides efficient torque transmission with minimal air consumption, making it a cost-effective and durable automation solution.

This butterfly valve features a wafer-type body made from ductile iron, combined with a CF8 stainless steel disc and EPDM seat, ensuring excellent sealing and corrosion resistance in chemical, food, pharmaceutical, water treatment, and environmental systems. Its structural design minimizes wear and pressure loss during opening and closing cycles, enhancing longevity and sealing performance under frequent actuation.

Key internal components like the PTFE/Brass sleeve, 2Cr13 stem, and EPDM sealing rings provide high resistance against chemical erosion and mechanical stress. The diaphragm actuator enhances responsiveness and provides stable control, especially suitable for systems that demand high cycle performance and accurate flow modulation.

Compliance with standards such as GB/T12238-2008, GB/T13927-2022, and GB/T20959-2009 ensures high-quality engineering and international compatibility.

Whether you’re managing process lines in a refinery or automating fluid control in a clean water system, this wafer-type diaphragm actuated butterfly valve delivers outstanding operational stability and corrosion resistance.

For expert advice on this product or any industrial valve solution, contact our experienced team at VALVEHU in China — we’re here to help you find the right valve for your process system.

Specifications

Valve Type: Butterfly Valve, Pneumatic Diaphragm Operated
Model: PZD671X
Pressure Rating: Class 150 / 1.0MPa
Body Material: Ductile Iron
Disc Material: CF8 Stainless Steel
Seat Material: EPDM
Connection Type: Wafer
Temperature Range: Up to 80°C
Stem Material: 2Cr13
Sleeve Material: PTFE/Brass

Main Valve Components and Materials

No.	Part Name	Material
1	Body	Ductile Iron
2	Seat	EPDM
3	Disc	CF8 Stainless Steel
4	Stem	2Cr13 Stainless Steel
5	Sleeve	PTFE/Brass
6	Y Ring	EPDM
7	Washer	Carbon Steel 45#
8	Jump Ring	65Mn Spring Steel
9	Jump Ring	65Mn Spring Steel

Main Connection Dimensions (Unit: mm)

DN	L1	L2	L	D (MAX)	D (MIN)	A	B	C	E	F	ØA	ØB	F*F	N-ØE
DN50	66	131.5	43	125	105	92	147	130	120	112	70	50	9	4–Ø6.7
DN65	86	140	46	140	130	107.5	168	130	120	112	70	50	9	4–Ø6.7
DN80	94	152	46	160	145	107.5	168	130	120	112	90	50	9	4–Ø6.7
DN100	110	173	52	180	165	119.5	184	130	120	112	90	50	11	4–Ø10
DN125	128	189	56	210	200	128.7	204	130	120	112	90	70	14	4–Ø10
DN150	140.5	199	56	240	230	153	268	130	120	112	90	70	14	4–Ø10
DN200	170	236	60	295	280	185	301	130	120	112	125	102	17	4–Ø12
DN250	205	177	68	355	345	185	301	130	120	112	125	102	17	4–Ø12
DN300	238.5	317	78	410	390	202	390	130	120	112	150	125	22	4–Ø14
DN350	265	360	78	470	435	227	458	130	120	112	150	125	22	4–Ø14
DN400	302	390	102	525	495	260	525	130	120	112	175	140	27	4–Ø18

FAQ

What is the pressure rating of the PZD671X butterfly valve?
It is rated for 1.0MPa or Class 150 service pressure.

Can this valve handle corrosive media?
Yes, the EPDM seat and CF8 disc make it suitable for various corrosive fluids.

What industries commonly use pneumatic diaphragm butterfly valves?
They are widely used in chemical processing, food production, pharmaceuticals, and water treatment.

What is the main advantage of the diaphragm actuator?
It provides reliable and energy-efficient control with low air consumption and smooth operation.

Is the valve suitable for high-frequency operation?
Yes, its robust design and materials support frequent cycling in automated systems.