SMWZ644 -DNA -C Split Disc Check Valve Double Beat 100% Airtight Eco Friendly

SMWZ644 -DNA -C Split Disc Check Valve Double Beat 100% Airtight Eco Friendly

Main Perfomance

Model WZ644-10Q double-disc valve uses a double -disc sealing and sealing surfaces are made from wear-resistant alloy or ceramic. The seal is 100% airtight and the valve achieves a long service life , particularly in applications . Consequently , overall system reliability is increased dramatically .

Operating Performance

When air is introduced into the upper cylinder port , the piston rod pushes the double-disc down and the valve is closed . When air is introduced into the lower cylinder port , the piston rod pushes the double-disc up and the valve is opened . Compression spring being placed between the discs and seal ring , forces the discs the discs against the seal ring , and also allow for discs vertical movement , which helps to compensate the thermal expansion and contraction of the parts and ensure an airtight seal under all conditions . When actuating the valve , the double-disc rotates to lap and polish the sealing surfaces . When product flows through the valve , any material entering the inner chamber is removed by vortex flow action . Hence , the valve is self-cleaning . Additional air purging can be provided to ensure clean-in-place performance . All these characteristics guarantee a long service lofe for the valve and increase the reliability of your system .

Applications

Any dust , powder , and granular products in coal-fired power plants , smelters , iron and steel plants , pharmaceutical and chemical industries .

Technical Parameters

Maximum-Operating Pressure : 1.0MPa

Maximum Test Pressure : 1.5MPa

Operating Temperature : ＜200℃

Leakage Test Pressure : 1.1MPa

Installation and Application

1. Prior to installation , make sure the pneumatic actuator is free of any defects like breakage and concave .

2. Make sure the joint flange , structural length , maximum operating pressure and nominal diameter are accorded with requirements .

3. During installation , not allowed to readjust studs and nuts that have been fastened originally . Align the center of two pipelines and valve diameter to be coaxial . Keep the flange surface flat . Uniformly apply force to tighten the bolt .

4. After installation , introduce air from the upper and lower cylinder ports to see whether the valve can be normally opened or closed .

5. Cheek the control switch ( if existing ) to see whether it is reliably fastened , whether its parameter is accorded with access power source , and whether it can correctly work under full opening and full closing conditions .

Troubleshooting Method

Main Parts and Materials

NINGBO SANMIN IMPORT & EXPORT CO.,LTD. was established in 2014.Our company is mainly engaged in instrumentation, pneumatic and hydraulic industry accessories and services, has more than 10 series of core products.Focusing on the production of automatic machinery to provide a variety of options, products have a wide range of applications.

Sanmin is an industrial and trade enterprise, has a strict quality control system from material selection, inspection workshop, product testing, production, inspection, packaging design to shipment.At present, the company's trade scale is expanding day by day, the customers spreads over more than 20 countries.

We are strictly abides by Chinese laws and regulations, and has won the trust of customers at home and abroad with good reputation. Welcome to telephone and send E-mail to communication, sincerely cooperate, and seek common development.

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NINGBO SANMIN IMPORT AND EXPORT CO.,LTD.

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