Cast Steel Material Butterfly Valve

Posted on July 24, 2025

Model NO.: D71X

Working Pressure: Mid-Pressure (2.5MPa < Pn < 6.4MPa)

Operating Temperature: Medium Temperature (120Â°C < T < 450Â°C)

Seal Material: Soft Sealed

Valve Body: Casting

Standards: GB, DIN, ANSI

Application: Industrial, Water Supply, Domestic Use

Color: Blue or Customized

Pn: 10, 16, 150lb, 300lb

Dn: 50-3200mm

Design: Casting / Forging

Operator: Manual / Electric / Pneumatic

Sealing Materials: EPDM, NBR, PTFE, Viton, Stainless Steel, Stellite

Certifications: CE, ISO9001, ISO14001, SGS, GOST

Coating Thickness: 250 Micron

Used For: Tap Water, Drinking Water, Sea Water, Oil, Gas

Trademark: BH

Packaging: Wooden Case

Specification: Ductile Iron Material

Origin: China

HS Code: 8481804090

Purpose

This product is widely used in water supply and drainage systems for tap water, sewage, buildings, and chemical industries. It functions as a reliable opening and closing device in various industrial applications.

Features

Featuring a double or triple eccentric design, it ensures excellent sealing performance, long service life, and high durability.

Executive Standards

GB/T 9113.1, API 609 Category A, BS EN593/BS5155

Performance Parameters

Nominal Diameter: 2" - 80" / DN50 - DN2000

Working Pressure: 10 Bar / 16 Bar / 25 Bar

Face-to-Face: API 609 Table 1, ISO 5752 Series 20, BS 5155

Flange Compatibility: ANSI B16.1 Class 125/150, EN1092-2 PN6/10/16/25

Top Flange: ISO 5211

Tightness Inspection: API 598, ISO 5208, EN12226-2

Main Part Materials

Body: Cast Steel, Stainless Steel

Disc: Cast Steel, Stainless Steel

Stem: Stainless Steel

Sealing Ring: Stainless Steel / PTFE

Packing: Flexible Graphite / PTFE

Performance Parameters:

DN 40 - 1200 mm

PN 1.0 - 1.6 MPa

Suitable Temperature Max 100Â°C

Media Water, Gas, Oil

Operation Manual / Electric / Pneumatic

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Packing: Wooden Case

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Bohai Valve Group Co., Ltd. is a professional manufacturer of valves located in the Tianjin Bohai Economic Development Zone, covering over 10,000 square meters. Established in 1980, we have 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 offer high-quality products at competitive prices with excellent customer service.

Bohai Valve Group Co., Ltd.
Tel: +86-022-28596661 ext 8015Â Â Â Â Â Fax: +86-022-8861 5222
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Web: www.bhvalve.cn
Address: No. 88 Gao Ying Road, Beizhakou Town, Jinnan District, Tianjin, China
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