Dn250 Dn300 Dn350 Dn400 Butterfly Valve

Dn250 Dn300 Dn350 Dn400 Butterfly Valve

The sealing surface of butterfly valve produced by zhejiang zhengfeng valve adopts the sealing design of three-eccentric and flexible multi-layer metal and graphite.

Product Details

Wining the majority from the crucial certifications of its market for Flange Type Butterfly Valve, Gear Butterfly Valve, Bidirectional Triple Offset Butterfly Valve. We adhere to the principles of creating products with science, making progress with technology, and developing new businesses with the market. Technical elites have accumulated rich experience in research, development and marketing for the company and constantly push the old and bring forth the new to meet the requirements of different customers. We focus on absorbing and cultivating technical and managerial talents, and we have accumulated abundant intellectual capital. We implement the precise service and cost leading business strategy and constantly provide customers with high-quality products and services.

【Product Description】:

The sealing surface of butterfly valve produced by zhejiang zhengfeng valve adopts the sealing design of three-eccentric and flexible multi-layer metal and graphite.It ensures good sealing performance and reduces operating torque. The elastic characteristics of multi-layer composite metal sealing ring enable the valve to have zero leakage performance.Our butterfly valves are mainly made of the following materials SS304, SS304L, SS316, SS316L, A105, WCB, hasley alloy, LC2, LC3, LCB, C4, 2205, 2507, C95800, etc


【Product Information】:

* Size : DN350

* Pressure : PN25

* Connection :LUG type ends

* Operation : Gearbox operated

* Body : A216 WCB

* Disc :  A351 CF8M

* Seal :  SS316+Graphite

* Stem : AISI 316

* F/F length : 92mm

* Valve Structure : Triple offset

* Painting : Epoxy paint

* Color card No : RAL 5005

* Design standard: EN593

* End flange dimension: EN1092-1

* Suitable medium : water、oil、gas

* Origin : CHINA P.R


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【Product Performance】: 

1.Multilayer hard seal butterfly valve seal is composed of hard and soft metal sheets. It is formed by high precision machining and is mounted on the disc plate to match the valve seat. It has double advantages of metal seal and elastic seal. It has excellent sealing characteristics both at low temperature and high temperature.

2.The valve seat with three-dimensional eccentric structure has almost no friction with the disc plate, and has the sealing function of tighter and tighter closure.

3.Unique structure, flexible operation, labor-saving, convenient, not affected by high or low pressure of medium, reliable sealing performance, long service life.


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Banking on the skills of our qualified team of professionals, we are involved in offering supreme quality array of Dn250 Dn300 Dn350 Dn400 Butterfly Valve. It can be our accountability to satisfy your preferences and competently provide you. We uphold the core values of 'love, dedication, gratitude, and integrity'.

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