JIS Standard Cast Steel /Stainless Steel Swing Check Valve

• Customization: Available
• Media: Oil,Gas,Water
• Temperature: Ordinary Temperature
• Model NO.: H44H-10/16/20K
• Type: Direct-acting
• Material: Carbon Steel
• Connection Form: Flange
• Pressure: Low Pressure
• Actuator: Manual
• Seal Surface: H
• Thread Position of Valve Rod: Outside Gate Valve
• Usage: Regulation
• Standard: ANSI
• Application: Industrial Usage, Water Industrial Usage
• OEM/ODM: Available
• Logo Customization: Available
• Predefined Product Colors: Available
• Short-Term Warehouse Storage: Available
• Transport Package: Plywood
• Specification: DN32~DN1200
• Trademark: non
• Origin: China
• HS Code: 8481804090
• Production Capacity: 50000PCS/Month

Product Description

Introduction

Working Principle
Under the action of the fluid pressure flowing in one direction, the valve disc opens; when the fluid flows in the opposite direction, the fluid pressure and the self - weight of the valve disc act on the valve seat, thereby cutting off the flow.
Installation Precautions
The check valve should not bear weight in the pipeline. Large - scale check valves should be independently supported to avoid being affected by the pressure generated by the pipe system.
During installation, pay attention that the direction of medium flow should be consistent with the arrow direction on the valve body.
Swing check valves can be installed on horizontal, vertical, or inclined pipelines, and the installation position is not limited.

Specification

Key Standards at a Glance

1. Manufacturing Standards
JIS B2062: Swing Check Valves
Specifies requirements for materials, dimensions, and design of swing check valves (including cast steel types).
Covers mechanical properties, machining tolerances, and surface finish of components (body, disc, seat).
Reference: JIS G5111 for cast steel materials (e.g., SCW410, SCW450).
JIS G5111: Carbon Steel Castings for General Engineering
Defines grades for cast steel (e.g., SCW410: tensile strength ≥410 MPa; SCW450: ≥450 MPa).
Requires non-destructive testing (NDT) for casting defects (ultrasonic/radiographic inspection).
JIS B8210: Testing of Valves
Specifies hydrostatic/pneumatic tests for shell strength and seat leakage.
2. Face-to-Face Dimensions (Structural Length)
Standard: JIS B2002Defines face-to-face (F2F) dimensions for flanged valves.
3. Flange Connection Standards
JIS B2201: Pipe Flanges
Specifies flange types, dimensions, and pressure classes (10K, 20K, 30K).
Flange Face Types:Raised Face (RF): For high-pressure applications.
Flat Face (FF): For low-pressure systems.
Key dimensions: Bolt hole pattern, flange thickness, sealing surface diameter.
JIS B2210: Gaskets for Pipe Flanges
Covers flat gaskets and ring joints for flange connections.
4. Testing Standards
Shell Test (Body Pressure Test):
JIS B8210: Apply 1.5× nominal pressure (e.g., water/gas).
Seat Test (Leakage Test):
JIS B8210: Apply 1.1× nominal pressure to inlet side.
Requirement:Metal seats: ≤0.1% rated flow leakage.
Reverse Flow Test: Verify disc closure under backflow conditions.

Packing 

Loaded

Transportation

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: 18 months after receipt of goods
Global Support: 24/7 technical assistance and spare parts supply.

Why Choose Us?

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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.