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|Size：:||NPS 2"~24"||Pressure Rating：:||Class 125~150|
|Material：:||CF3M,WCB, LCB, WC6, C12, C5,CF8, CF8M, CF3, Etc||Design & Manufacturing Standard：:||BS 1868, ASME B16.34, API 600|
|Face To Face：:||ASME B16.10, API 6D BSEN558||End Connection：:||ASME B16.5, ASME B16.47, ASME B1.20.1 , ASME B16.11,DIN 2453-2551, ASME B16.25|
|Test And Inspection：:||ISO 5208, API600, BS 6755||Operation Method：:||Swing Type, Lifting Type|
ductile iron swing check valve,
bolted bonnet check valve
Ball type cast check valve 2"-24" CL125-150 RF, non-return valve
Material of ball check valve: Cast iron and Cast steel
Size of eccentric ball check valve: 2inch(DN50) - 24 inch (DN600)
Pressure of eccentric ball check valve: 125LB(PN6)-150LB(PN16)
Connection type: Flange(FF,RF)
Operating temperature: -20℃ - 90℃
Working medium : water, oil, gas
Ball check valves have two type, one type is single ball type check vaLve, anther type is more balls type check valve.sliding ball type check valves disc is a ball coated with rubber and dependant on the line pressure the ball can slide up and down in the integrated chute in the body to open or close the valve without any noise and water-hammering and good sealing capability The bore is full without any block so the flow rate is much with little resisting force and little pressure loss and water-head loss is 50% of swing check valves.It can be installed vertically or horizontally and widely used in cold waters,hot waters,industrys and sewages ppipeline and it is more for sewage submersible pump.
Silent check valve have anther name is lift check valves, it is widely utilized for feedwater system and drain system. Valve disc is guided by central shaft at two ends, realizing on-off rapidly. The valve can be installed vertically or horizontally. The disc is loaded by spring which can close the valve quickly and reduce water hammer pressure effectively. Silent check valve has small volume, light weight and long service life.
The check valve consists of valve body, seat, baffle, valve disc, bushing, spring, etc. The inner channel adopts streamline design for low pressure losses and short closing stroke, which can close rapidly to avoid loud water hammer noise and keep silence. This kind of check valve is mainly installed at the exit of pump for feedwater, drain, fire protection and heating systems to avoid the damage to the pump caused by back flow of medium and water hammer.
Ball Type Check Valves (NRV) B-01 was the first of the valve at Normex with unique design and technology for the first time in India. A very simple and robust design with no mechanism involved. The heart ofб═ valve is rubber coated ball. The mechanism hinge-pin-disc used in conventional check valves is eliminated and Normex has put in this rubber coated ball to arrest flow media in return condition.
As the pump starts, the ball moves out totally from the flow path when the pumping is on giving a full bore maximum flow/discharge with minimum head losses. (Fig. A). As the pump stops, the ball rolls back and seats perfectly on the rounded valves seat ensuring totally leak proof sealing.(Fig. B)
Clean water, Raw water, Sewage, Slurry, Waste water, Viscous liquids etc.
Fire fighting, Plumbing, Water distribution, Water/Sewage treatment, Irrigation/agriculture, Sewage plants, Steel mills, Power stations,
Chemical/process industries, HVAC, Sugar/food industry, Breweries, Mining and many more.
Counter flange are available as an accessory. Piston, tilting disc or API- 6D designs are also available to meet the customers requirements. Drains and bypasses are available as specified by the customer.
We are committed to offering porducts that meet a wide range of appications and requirments. We continually improve our product line by introducing new products and enhancing exsiting designs. Providing our customers with the best quality in the market.