PN16-DN40 butt welded triple eccentric metal hard seal butterfly valve F304 valve body handle operation

PN16-DN40 butt welded triple eccentric metal hard seal butterfly valve F304 valve body handle operation

【1】 Structure Introduction

The sealing ring of this butterfly valve butterfly plate is a three eccentric multi-level hard sealing structure, made of a sandwich layer of metal steel sheet and high-temperature asbestos board, that is, one layer of metal steel sheet, one layer of asbestos board, and another layer of metal steel sheet. The specific number of layers varies depending on the specifications, pressure, and manufacturer. Common examples include SS304+graphite, SS316+graphite, etc.

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 butt welded 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.

Our bidirectional sealed butterfly valves can achieve 1:1 zero leakage in both forward and reverse sealing.

【4】 Main component materials

Valve body: F304 (welded from stainless steel 304 steel plate)

Butterfly plate: F304 (butterfly plate is forged)

Valve stem: F304 (valve stem is rod grade)

Butterfly plate seal: SS304+graphite

Packing: Graphite

Bracket: WCB

Handle: QT450

The above is the default configuration for 304 material butt welded butterfly valves. Some component materials can be adjusted according to customer needs, and both the bracket and handle materials can be made of stainless steel 304 and 316 materials for all stainless steel butterfly valves.

【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 allPN16-DN40 butt welded triple eccentric metal hard seal butterfly valve F304 valve body handle operationFor more information, please visit the website of Tianke Valve Enterprise, a Wenzhou manufacturer specializing in the production of high-quality butterfly valves.

，