PN25-DN400 butt welded hard sealed bi-directional sealed forged steel A105 material worm gear butterfly valve

PN25-DN400 butt welded hard sealed bi-directional sealed forged steel A105 material worm gear butterfly valve

【1】 Structure Introduction

This butterfly valve adopts a three eccentric floating valve seat and a metal hard seal bidirectional sealing structure. The butterfly plate sealing ring is a three-level hard seal structure with three eccentricities. The material is a sandwich layer of metal steel sheet and high-temperature asbestos sheet, that is, one layer of metal steel sheet, one layer of asbestos sheet, and another layer of metal steel sheet. The specific number of layers depends on the specifications, pressure, and manufacturer, and there are different standards. Common examples include SS304+graphite, SS316+graphite, etc.

The bidirectional sealing structure is designed with a floating replaceable valve seat. The valve seat can automatically adjust the sealing angle with the butterfly sealing ring according to the flow direction of the medium, achieving the goal of bidirectional sealing.

Characteristics of Three Eccentric Butterfly Valve:

1. Short structural dimensions, small volume, light weight, and operational aspects

2. Adopting a full axis mechanism, the butterfly plate has high strength and a large overcurrent area

3. The unique three eccentric design reduces sealing friction loss and greatly extends the service life

4. Metal hard seal is resistant to high temperature, low temperature, high pressure, and has a wide range of applications

【2】 Related standards for national standard bidirectional sealed butterfly valves

Design and Manufacturing: JB/T8527

Structural length: GB/T12221

Inspection and pressure testing: GB/T13927

All valves produced by our company are strictly pressurized according to the pressure testing standards. Only after passing the pressure testing can zero leakage butterfly valves be allowed to leave the factory.

According to the GB/T13927 standard, strict pressure testing can achieve zero leakage under the above pressure strength.

Accept sampling and full inspection from the customer's quality inspection and third-party quality inspection units commissioned by the end customer, but please inform us in advance

Double directional sealed butterfly valves are commonly available in flange type, clamp type, lug type, and welded type. In addition to producing ordinary national standard butterfly valves, our company can also produce export double directional sealed butterfly valves such as American standard, German standard, Japanese standard, Russian standard, etc.

【4】 Main component materials

Valve body: A105

Butterfly board: WCB

Valve stem: 2Cr13

Butterfly plate seal: SS430+XB450

Packing: Graphite

Bracket: WCB

Worm gear housing: QT450

【5】 About our company

Tianke Valve is a professional manufacturer of butterfly valve series products. The company was founded in 2006 with a registered capital of 11.18 million yuan. Since its establishment, we have been dedicated to researching and opening butterfly valve series products,All butterfly valve series products produced by our company now use our unique molds, which can meet relevant standards in terms of valve body wall thickness, flange thickness, and structural length. The casting molds used by most manufacturers in the non market.

Our production range mainly includes flange butterfly valves, clamp butterfly valves, lug butterfly valves, and welded butterfly valves. The nominal pressure ranges from PN1-100150LB-600LB, with specifications from DN40-1400 and NPS2-60. The standards involved include national standards, the Ministry of Chemical Industry, the Ministry of Machinery, as well as export standards such as American, German, Japanese, Russian, and British standards. We can produce ordinary one-way sealed butterfly valves and two-way sealed butterfly valves. Our two-way sealed butterfly valves can achieve 1:1 zero leakage in both forward and reverse directions.

Our company produces various types of special steels, including ordinary cast steel WCB, stainless steel 304, 316, 304L, 316L, duplex steel 22052507, nickel aluminum bronze C95800, titanium, and Hastelloy alloy.

That's allPN25-DN400 butt welded hard sealed bi-directional sealed forged steel A105 material worm gear butterfly valveFor more information, please visit the website of Tianke Valve Enterprise, a Wenzhou manufacturer specializing in the production of high-quality butterfly valves.

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