Dual Plate Wafer Type Check Valve With Retainerless
Retainerless dual-plate check valves
- Design features of our Retainerless dual check valve:
- Do not have any leakage problem on Body. Wafer type design fasten valve by bolt and flanges
- Size: 2" ~ 60" (DN40 - DN1500)
- Pressure Rating For ASME: 125# ~ 2500# Suit For ASME / MSS / API Flange
- Pressure Rating For ISO: PN10 ~ PN40 Suit For ISO Flange
- Pressure Rating For JIS: 5K ~ 20K Suit For JIS Flange
- Designed in accordance with API 594
- End Connection: Wafer, Lugged (TC8-2, TC8-3), Flanged (TC8-1)
- *Technical information is only for reference. Taiwan Valves Centre Co., Ltd. reserves the right to change without previous notice.
- Retainerless dual check valve is suitable for high temperature and high pressure environment, like Petrochemical, Refinery or power plant.
- Variety of Body Designs Available - Wafer Type, Lug Type and Double Flange Type.
- TVCCL has been exporting its products to the United States, Japan, Singapore, UAE, Europe, and other advanced industrial and regions, also,we had supplied to SAMSUNG,SIEMENS, Mitsubishi Heavy Industries, Kobe Steel and other internationally renowned companies.
- The island of Taiwan's Formosa Plastics Group, Chi Mei Industrial Group, Changchun Chemical Engineering, Taiwan's China Steel, China Shipbuilding Group and other large enterprises are also included.
- TVCCL's products are widely used in petroleum and petrochemical products, steel,desalination, shipbuilding, energy, water treatment, air-conditioning, electronic and other industrial fields.
- Related Products
The dual Plate Check valve is an automatically opened valve that only allows the medium to flow in the same direction and prevents reverse flow. Automatically open and close when there has pressure generated, no need to handle or other actuation control. Under the action of the pressure flowing in the same direction, the discs are opened, so that the medium can flow in the pipeline; conversely, when the medium flows in the opposite direction, the pressure generated by the medium and the weight of the valve discs act on the seat. When the valve is closed, the check valve will cut off the flow, thereby achieving the effect of backstop and media backflow. Its main function is to prevent backflow of the medium, prevent the pump and drive motor from reversing, and release the container medium. TVCCL's check valve is quickly closed due to the valve flap, which can quickly achieve the effect of backstop, and can effectively reduce the occurrence of water hammer. TVCCL make valve by selected materials, so it is more durable than the other manufacturers. And the performance is more reliable and practical. Using check valve under normal situation all can achieve the non-return effect. However, if the pipeline installation distance is less than 6~8 times the size of the valve, the life of the check valve may be shortened or the valve body and parts may be damaged.
Flange type retainerless type check valves have the advantage of zero leakage toward outside
Lug type retainerless type check valve has no screwed body plugs
Sold lug type retainerless type check valve has no leak path to toward outside
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- A check valve, clack valve, non-return valve (NRV) or one-way valve is a valve that normally allows fluid (liquid or gas) to flow through it in only one direction. Check valves work automatically and most are not controlled by a person or any external control; accordingly, most do not have any valve handle or stem. There are various types of check valves used in a wide variety of applications. Basically, check valve is doing the function of avoiding reverse flow no matter what the type iswe will email our Installation and maintenance instruction for your reference at first transaction.WCB/CF8/CF8M/CI/DI/B148 C95800(ALBC3) we usually have stock as above; However, to some special materials, like A8904A/CF3M…etc. We need evaluate if it need MOQ or not.NBR→Usually used in WATER & WASTEWATER TREATMENT. EPDM→Usually used in OIL & GAS. VITON→Usually used in CHEMICAL & PETROCHEMICAL. METAL (Same as Body)→Usually used in HIGH TEMPERATURE ENVIRONMENT, HAVE LEAKAGE.※Rubber seat zero leakage Metal seat leakage permitted values according to standard API598, permitted value is “size*700c.c”/MinOtherwise, we have special type named “__________” Under no pressure environment, no leaking when you pouring water into valve.