ANSI /DIN/JIS/GOST/GB Standard Ductile Cast Iron Wafer Butterfly Valves with EPDM and PTFE Coatings

• Customization: Available
• Media: Oil,Gas,Water
• Temperature: Ordinary Temperature
• Type: Direct-acting
• Material: Cast Iron
• Connection Form: Wafer
• Pressure: Low Pressure
• Actuator: Manual
• Seal Surface: Rubber
• Thread Position of Valve Rod: Outside Gate Valve
• Usage: Regulation
• Standard: GB
• Application: Industrial Usage, Water Industrial Usage
• Transport Package: Plywood
• Specification: DN32~DN1200
• Trademark: non
• Origin: China
• HS Code: 8481804090
• Production Capacity: 50000PCS/Month

Product Description

Introduction

A Chinese National Standard (GB) cast iron wafer butterfly valve is a versatile industrial valve designed to meet strict Chinese GB requirements while seamlessly adapting to API, GOST, JIS,and DIN standards. This valve is engineered for reliable flow control in pipelines handling water, sewage, oil, gas, and non-corrosive media, with a focus on multi-standard compatibility, durability, and ease of installation.

Specification

Multi-Standard Compliance
Chinese National Standard (GB)
Design & Testing: Complies with GB/T 12238-2008 for flange and wafer-type elastic-seated butterfly valves, covering structural integrity, pressure/temperature ratings, and sealing performance .
Face-to-Face Dimensions: Follows GB/T 12221 for consistent end-to-end lengths.
API (American Petroleum Institute)
Design Standard: Meets API 609 for wafer-type butterfly valves, ensuring bidirectional sealing and low torque operation .
Flange Compatibility: Adopts ANSI B16.5 or ANSI B16.1 flange dimensions for Class 150–600 applications .
Testing: Validated per API 598 for leakage and structural integrity .
GOST (Russian State Standard)
General Requirements: Conforms to GOST 22222 for butterfly valves, including pressure/temperature ratings and material specifications .
Flange Dimensions: Aligns with GOST 33259-2015 (superseding GOST 12815-80) for PN6–PN160 flanges .
Safety Certification: Mandatory TR CU 032/2013 compliance for Eurasian Economic Union (EAEU) markets .
DIN (German Standard)
Design: Follows DIN 3354 for butterfly valve construction and DIN 3202 for face-to-face dimensions .
Flange Connections: Compatible with DIN 2501 (PN10/16) and ISO5752 EN 1092-2 flanges .
Testing: Complies with DIN 3230 for hydrostatic and leakage tests .

JIS (Japanese Industrial Standard)
Flange Dimensions: Compliant with JIS B2220 (cast iron flanges), supporting pressure classes 10K (1.0 MPa) and 20K (2.0 MPa).
Design Standard: Meets JIS B8210 (butterfly valves) and JIS B8201 (general valve requirements).
Testing: Validated per JIS B8241 (valve pressure tests) for leak-free performance under 1.5x nominal pressure.

Packing 

shipment

containers

Drawings & Dimensions

Detailed CAD drawings and dimensional diagrams are available for download here or upon inquiry. Our engineering team can provide tailored designs to meet specific project requirements.

After Sales Service

Standard Warranty: 12 months or 2,000 operating hours (whichever comes first).
Extended Warranty: Optional coverage up to 36 months.
Global Support: 24/7 technical assistance and spare parts supply.

Why Choose Us?

Other Products

OEM/ODM capabilities
Competitive pricing & bulk discounts
Fast shipping & customs clearance support
Turnkey project solutions

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FAQ

Q: What’s the lead time for orders?
A: Standard models ship in 15–30 days; customized units require 30–45 days.

Q: Do you provide after-sales service overseas?
A: Yes, we have partnered service centers in key regions.

Q: Can I request a customized bucket size?
A: Absolutely! We offer tailored attachments.

Q: What documents do you provide for export?
A: Full export package (Commercial Invoice, Packing List, Bill of Lading, COC, etc.).

Q: How do I place an order?
A: Contact us via email/phone for a quote, then confirm with a PO.