Zero Leakage Ductile Iron Silent Check Valve Spring-Loaded Design Noise Reduction Check Valve for Municipal Water Systems

Product Description

Product Description
Check Valve - Reliable Backflow Prevention for Industrial Systems
Our Check Valve is engineered to prevent reverse flow in pipelines, protecting equipment and ensuring efficient system operation. With a variety of types available, it is widely used in industries such as water treatment, oil and gas, chemical processing, and HVAC systems.
Key Features:
Versatile Types: Includes lift, flanged, wafer butterfly, swing, silent, cast iron, and brass models to suit different application needs. Effective Backflow Prevention: Automatically stops reverse flow to safeguard pumps, compressors, and other equipment. Durable Construction: Made from high-quality materials like cast iron, brass, and stainless steel for enhanced performance and longevity. Low Maintenance: Simple design with minimal moving parts ensures ease of operation and reduced maintenance requirements. Wide Compatibility: Suitable for use with liquids, gases, and steam in various industrial environments. The Check Valve provides dependable performance, combining efficiency with durability to meet the demands of modern industrial systems.
Product Parameters

Parameter	Details
Model	H41H Rising Stem Check Valve
Material	Cast Steel (WCB) or Stainless Steel (CF8/CF8M)
Size Range	DN50 - DN300 (2" - 12")
Pressure Rating	PN16, PN40
Connection Type	Flanged (RF, RTJ)
Design Standard	API 594, ASME B16.34, GB/T 12236
Face-to-Face Standard	ASME B16.10, GB/T 12221
Flange Standard	ASME B16.5, DIN EN1092-1, JIS B2220
Testing Standard	API 598, ISO 5208
Temperature Range	-29°C to 200°C (-20°F to 392°F)
Operation Method	Manual, Electric Actuator, Pneumatic Actuator
Medium	Water, Oil, Gas, Petrochemical, etc.
Application	Water Treatment, Oil & Gas, Petrochemical, Power Plants, etc.

DN Dimensions Table

DN (mm)	NPS (in)	L (Face-to-Face)	D (Flange Diameter)	d (Stem Diameter)	H (Height)	W (Width)	PN (Pressure Rating)
50	2"	210	180	22	320	280	PN16 / PN40
65	2-1/2"	230	200	25	340	300	PN16 / PN40
80	3"	250	220	28	360	320	PN16 / PN40
100	4"	270	250	30	380	340	PN16 / PN40
150	6"	320	285	35	420	370	PN16 / PN40
200	8"	350	340	40	480	420	PN16 / PN40
250	10"	400	405	45	530	470	PN16 / PN40
300	12"	450	460	50	600	540	PN16 / PN40

FAQ

Q: Can we visit your factory to inspect the products in person?

A: Of course, you are welcome to visit. Our products are built to withstand scrutiny, and we are very happy to have you here. We look forward to establishing a long-term trade partnership with you!

Q: Can you customize the products according to the specifications and appearance I require?

A: Yes, we can adjust our production lines to meet your required specifications and product appearance, including color.

Q: What if there is no Chinese translator when we visit the factory?

A: We will hire relevant translators based on your language needs to ensure smooth and efficient communication.

Q: What market share do your products occupy in China?

A: From 2021 to 2024, our company's annual turnover ranged from 50 million to 100 million RMB, capturing a large share of the Chinese market.

Q: What are your competitive advantages compared to other companies in the industry?

A: Brand reputation. Our company does not compete on price, but rather on quality. We invest substantial funds into production materials, advanced equipment, and skilled technicians, focusing on building a strong brand image and a positive company reputation, rather than engaging in price competition.

Company Profile Quality (Shandong) Industrial Automation Co., Ltd. is located in Zibo City, Shandong Province, China, an area rich in cultural heritage, with a strong industrial foundation and a high level of production concentration. We are a high-tech valve manufacturing enterprise integrating design and development, manufacturing and installation, sales and service, technical communication, and international trade.
Based on conventional valves, the company actively applies new technologies, materials, and processes to research and manufacture various high-end valves, as well as general high and medium-pressure gate valves, globe valves, check valves, ball valves, etc. All products are designed, manufactured, and processed according to standards such as GB, ANSI, API, JIS, DIN, and BS. Additionally, we are capable of researching, designing, and developing high-performance special valves and non-standard products based on customer needs.
Our products are widely used in industries such as petroleum, chemical engineering, metallurgy, and power generation, and are suitable for various complex working conditions such as high temperature, high pressure, sulfur resistance, corrosion resistance, and erosion resistance.

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