Flanged Metal-Seat Butterfly Valve

July 26, 2025

Model No.: D343H
Working Pressure: Medium Pressure (2.5 MPa < Pn < 6.4 MPa)
Operating Temperature: Moderate Temperature (120°C < T < 450°C)
Seal Material: Soft Sealing
Valve Body: Casting
Standards: GB, DIN, ANSI
Application: Industrial, Water Supply, Residential
Color: Blue or Custom
PN Rating: 10, 16, 150lb, 300lb
DN Range: 50-3200mm
Design: Cast or Forged
Operation Type: Manual, Electric, Pneumatic
Sealing Materials: EPDM, NBR, PTFE, Viton, Stainless Steel, Stellite
Certifications: CE, ISO 9001, ISO 14001, SGS, GOST
Paint Thickness: 250 Micron
Use Cases: Tap Water, Drinking Water, Sea Water, Oil, Gas
Trademark: BH
Packaging: Wooden Case
Material: Ductile Iron
Origin: China
HS Code: 8481804090

Purpose

This butterfly valve is designed for use in water supply and drainage systems, including municipal, industrial, and building applications. It functions as an on/off control device in various fluid handling systems.

Features

Featuring a double or triple eccentric design, this valve ensures tight sealing, long service life, and reliable performance under high-pressure conditions.

Executive Standards

  • GB/T 9113.1
  • API 609 Category A
  • BS EN 593 / BS 5155

Performance Parameters

  • Nominal Diameter: 2" - 80" / DN 50 - DN 2000
  • Working Pressure: 10 Bar, 16 Bar, 25 Bar
  • Face-to-Face Dimension: API 609 Table 1, ISO 5752 Series 20, BS 5155
  • Flange Compatibility: ANSI B16.1 Class 125/150, EN 1092-2 PN6/10/16/25
  • Top Flange: ISO 5211
  • Leakage Test: API 598, ISO 5208, EN 12226-2

Main Component Materials

  • Body: Cast Steel, Stainless Steel
  • Disk: Cast Steel, Stainless Steel
  • Stem: Stainless Steel
  • Sealing Ring: Stainless Steel, PTFE
  • Packing: Flexible Graphite, PTFE

Key Specifications Table

DN 40 – 1200 mm
PN 1.0 – 1.6 MPa
Maximum Temperature 100°C
Media Water, Gas, Oil
Operation Manual, Electric, Pneumatic

Packing: Wooden Case

Flanged Metal-Seat Butterfly Valve
Flanged Metal-Seat Butterfly Valve
Flanged Metal-Seat Butterfly Valve

We are Bohai Valve Group Co., Ltd., a professional manufacturer of various types of valves located in the Tianjin Bohai Economic Development Zone. Covering over 10,000 square meters, we have been in operation since 1980 with more than 38 years of production experience. Our team includes ten technical engineers and over 100 skilled workers.

Our products are exported to Europe, America, Australia, Egypt, and Southeast Asian countries. We are committed to delivering high-quality products at competitive prices with excellent customer service.

Bohai Valve Group Co., Ltd.

Tel: +86-022-28596661 Ext. 8015 | Fax: +86-022-8861 5222

Web: www.bhvalve.cn | Address: No. 88 Gao Ying Road, Beizhakou Town, Jinnan District, Tianjin, China

Primary Amine As Flotation Agent

Oleyl Amine,Stearyl Amine,Octadecyl Amine,Primary Amine As Flotation Agent

Sichuan Tianyu Oleochemical Co., Ltd , https://www.sclthoil.com