GB/DIN/GOST/API Cast Steel/Stainless Steel Retainerless Wafer Lug Type Check Valve

• Customization: Available
• Media: Oil,Gas,Water
• Temperature: High Temperature
• Model NO.: H76H-16/25/40/64/150/300/600/900LB
• Type: Direct-acting
• Material: Carbon Steel
• Connection Form: Flange
• Pressure: High Pressure
• Actuator: Manual
• Seal Surface: Ball
• Thread Position of Valve Rod: Outside Gate Valve
• Usage: Regulation
• Standard: ANSI
• Application: Industrial Usage, Water Industrial Usage
• Transport Package: Plywood
• Specification: DN15~DN800
• Trademark: non
• Origin: China
• HS Code: 8481804090
• Production Capacity: 50000PCS/Month

Product Description

Introduction

Advantages:

Compact and lightweight, ideal for tight spaces.
Simplified design reduces parts and maintenance needs.
Lugs prevent valve rotation and improve installation stability.
Working Principle
Open Phase: Forward flow pushes the disc off the seat, allowing fluid passage.
Closed Phase: When flow stops or reverses, the disc drops/gravity-acts to seal against the seat, preventing backflow.
Retainerless Benefit: Fewer components mean lower risk of retainer failure and easier disc replacement.
Applications
Industries: Water supply, wastewater, HVAC, irrigation, and general industrial systems.
Media: Water, oil, non-abrasive liquids, and low-pressure gases.
Pressure Range: Typically suitable for low-to-medium pressure (e.g., PN10, Class 125).

Selection Considerations

Lug Compatibility: Ensure lug bolt hole pattern matches pipeline flange bolts to avoid misalignment.
Flow Direction: Verify the valve's arrow aligns with pipeline flow.
Seal Type: Choose soft-seal for tight shut-off (e.g., water systems) or metal-seal for high temps/abrasive media.
Installation Orientation: Suitable for horizontal use; vertical installation (with upward flow) may require spring assistance for reliable closure.
Abrasive Media: Not recommended for highly particulate fluids, as they may damage the disc or seat.

Specification

Design & Dimensions:

Standards Compliance (Examples)
Manufacturing: ASME B16.34, API 6D, EN 593.
Flange/Lug Dimensions: ASME B16.5, ISO 7005-1 (flanges); manufacturer-specific lug spacing standards.
Testing: API 598, ISO 5208 (pressure and leakage tests).

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

globe valve
check valve
strainer
flanges
ball valve

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.