Water Hammer Prevention Check Valve/Low Noise Silent Check Valve

• Customization: Available
• Temperature: Ordinary Temperature
• Certification: GS, RoHS, CE, ISO9001
• Model NO.: H41X-10/16Q
• Media: Gas, Oil, Water, Acid
• Standard: Standard
• Connection Mode: Flange
• Power: Manual
• Material: Cast Ductile Iron
• Type: Double Seater
• OEM/ODM: Available
• Logo Casted: Available
• Drawings Supply: Available
• Factory Visit: Available
• Transport Package: Plywood
• Specification: DN15~DN600
• Trademark: non
• Origin: China
• HS Code: 8481804090
• Production Capacity: 50000PCS/Month

Product Description

General Description

Muffler Check Valve (also known as Silent Check Valve) is a specialized valve designed to control fluid flow direction while minimizing noise and water hammer effects

Specification

Applications

HVAC Systems: Prevents reverse flow in heating/cooling loops.
Water Supply Networks: Maintains unidirectional flow in pumps and pipelines.
Industrial Pipelines: Protects equipment (e.g., pumps, compressors) from backflow.
Building Services: Quiet operation in domestic water systems.

Advantages
Quiet performance.
Extended equipment lifespan.
Reduced maintenance costs.
Energy efficiency.

Working Principle
When fluid flows forward, the valve opens fully.
When flow stops or reverses, a spring-loaded disc or piston closes gradually to avoid sudden impacts.

Specification Parameters

Silent Operation:
Reduces noise caused by rapid valve closure, making it ideal for quiet environments (e.g., buildings, hospitals, hotels).
Water Hammer Prevention:
Prevents pressure surges (water hammer) by closing gradually, protecting pipelines and equipment.
Rapid Closing Mechanism:
Closes before reverse flow occurs, preventing backflow and system damage.
Compact Design:
Space-saving compared to traditional swing check valves.
Low Pressure Drop:
Minimizes energy loss during normal flow.

Packing

Loaded

Transportation

Technical Specifications

(Custom configurations available upon request.)

Category	ASME/ANSI (USA)	GB (China)	DIN (Germany)	GOST (Russia)
Design & Manufacturing	ASME B16.34 API 6D	GB/T 12235 GB/T 12236	DIN 3352 DIN EN 12516	GOST 594-80 GOST R 52720-2007
Structural Length	ASME B16.10	GB/T 12221	DIN 3202	GOST 33259-2015
Flange Connection	ASME B16.5 ASME B16.47	GB/T 9113 HG/T 20592	DIN 2501 DIN EN 1092-1	GOST 12815-80
Face-to-Face/Dimensions	ASME B16.10	GB/T 12221	DIN 3202	GOST 33259-2015
Pressure Testing	API 598 ASME BPVC Section VIII	GB/T 13927 JB/T 9092	DIN EN 12266-1	GOST 9.032-74
Materials	ASTM A216, A351, A182	GB/T 12228 GB/T 1220	DIN EN 10222	GOST 977-88
Sealing Face	RF, FF, RTJ (ASME B16.5)	RF, MFM, FF (GB/T 9113)	RF, FF, MFM (DIN EN 1092-1)	RF, MFM (GOST 12815-80)

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 - month shelf - life after receipt
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

Gate valve
Globe valve
Ball Valve
Check valve
Butterfly 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.