Professional 3 Inch Hydraulic Check Valves Preventing Backflow With FPM Gasket

Professional 3 Inch Hydraulic Check Valves Preventing Backflow With FPM Gasket

Option of Hydraulic check valves

1. Connection: Weld, Thread

2. SEAL: NBR, FPM,PTEF all according to FDA177.2600

3. Standard: DIN,SMS, RJT, IDF, ISO, 3A

Specification

Applications:

1. Check valve is a valve that prevents the fluid from flowing back and ensures to flow in only one direction.

2. It can be used to prevent the flow less from returning avoid pipe-hammering

3. It is used in the food processing,beverages, wine, oil,cosmetics, pharmaceutical and chemical industries.

Drawing

Operating Principle

The valve opens when the pressure of the fluid exceeds the pressure to spring, When the two pressures are equalised, the valve closes, A stronger counter – pressure also makes the valve close.

Sanitary valves are two-port valves that feature two separate openings on their body. Fluid enters one opening and exits from the other. These valves help with applications that require liquids to flow in only one direction.

Sanitary valves come in two forms: horizontal and vertical.

Horizontal valves are suited to horizontal lines that need self-draining valves

Vertical valves can be used in either vertical or horizontal installations; in horizontal applications, vertical valves help when self-draining valves can’t maintain pump prime and temperature continuity

In the case of horizontal spring-check valves, product flow pushes a disc in the valve away from the seat. When forward flow pressure is removed, the electropolished spring will return the disc to its original position and hold it against the seat to keep it closed. Backflow pressure will also force the disc into the closed position.

Check valves help in scenarios that require the evacuation of process pipelines. This can occur for a host of reasons, especially those involving product recovery or drainage. Some applications may also require air agitation on the products in the pipelines or in the tanks they lead to. Check valves can accomplish this.

Things to Keep in Mind When Installing a Sanitary Check Valve

Certificate

Donjoy manufacture products certified by 3A,CE,FDA and so on, according to GMP, EHEDG standard. Production strictly enforce ISO9001-2008 management system.

Donjoy was founded in 1993, with registered capital RMB105.58 million(about 15million USD) We focus on developing high-precision PID valve positioner, Valve Control unit, Valve Position feedback device, intelligent automatic control valve, proportional valve, process control valve, high purity pump, homogeneous mixing pump, cleaning technology, pressure vessel, pipeline safety control technology, high clean pipe fitting&pipeline accessories and integrating r&d, production and sales as an integrated national high-tech enterprises. Donjoy’s products are widely used in bio-pharmaceutical, food and beverage, wine, fine chemicals and other industrial fields. Donjoy’s leading technology and innovation solutions meets growing demand in the industry of bio-pharmaceutical, food and beverage from the whole world, special emerging market.

Raw material, processing technology, welding technology, surface treatment and other technology from Donjoy have achieved advanced level in international market. It also complies with a series of international standards and specifications such as ASME BPE, EHEDG, FDA and 3A , It has passed the EU Pressure Equipment Directive (PED-97/23/EC) and (MD-06/42/EC) issued by the German TÜV organization; the 3-A health standard certification issued by the 3A organization; China Safety Valve Special Manufacturing Equipment (TS) License , China Quality Certification Center (CQC) and Quality Management System Certification (ISO9001:2015) and many other international authoritative certifications.

With advanced technology, excellent quality and perfect after-sales service system, Donjoy was awarded as National High-tech Enterprise, Provincial Famous Trademark, Science and Technology Enterprise, Innovative Enterprise, Patent Demonstration Enterprise, R & D Center Enterprise, AAA Credit Enterprise and many other honorary

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