Ball Type NRV
was the first of the valve at DASKM with unique design and technology for the first time in India. A very simple and robust design with no mechanism involved. The heart of valve is rubber coated ball. The mechanism hinge-pin-disc used in conventional check valves is eliminated and DASKM 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. As the pump stops, the ball rolls back and seats perfectly on the rounded valves seat ensuring totally leak proof sealing.
1. Lowest possible pressure drop across the valves.
2. 100% leak proof sealing years over years.
3. Non-clogging and self cleaning as ball rotates during operation.
4. Virtually no wear and tear, no maintenance and longer service life.
5. Higher solid handling capacity due to full bore and straight internal path.
6. Lower head loss-high discharge, reduced pumping time-All leading to Energy Saving.
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.
|DESCRIPTION||STANDARD MATERIAL||ON REQUEST|
|BODY/COVER||CAST IRON (GG25)||S.G.IRON(DI)/WCB/ST.STEEL|
|SEAT RING||L T BRONZE||ST.STEEL|
|FASTENERS||CARBON STEEL||ST. STEEL|
|SIZE RANGE||25mm TO 350mm|
|PRESSURE TESTING||BODY: 1.5 X PN|
|SEAT : 1.1 X PN|
|PRESSURE RATING - KPa|
|25mm TO 125mm||PN 1.6|
|150mm TO 300mm||PN 1.0|
|INSTALLATION||HORIZONTAL AS WELL AS VERTICAL|
|FACE TO FACE LENGTH||IS 5312 PART I -1984/ DIN 3202-F6|
|TEMPERATURE||SUITABLE UPTO 800C|
Cast Steel Lift Check Valve
DASKM Lift Type Check Valves are designed to reduce the flow resistance and pressure drop to the minimum possible extend. Lift check valves are suitable to mount in horizontal position only. Accurately machined, lapped and screwed in seat ring ensures tight shut off and long life. The valve disc is perfectly designed, accurately machined and guided for efficient automatic shut off at zero pressure. As an option seat can b weld deposited or integrated with body in case of stainless steel and other high alloy metals.
DASKM Lift Check Valves are available from size range 1” t 12” in Flanged End / Butt Weld End Connection, generally in all material of construction and up to 600# pressure rating.
Swing Type Check Valve Flanged
Design & Testing International Standard of Swing Check Valve
|Design Standard||BS 1868 / ASME B 16.34 / API 6D Standard|
|Inspection & Testing Standard||BS EN ISO 12266 - I (BS 6755 - I) / API 598 / ISO 5208|
|Flange To Flange Distance||As Per ANSI B 16.10 / API 6D|
|End Connection||Flanged End to ANSI B 16.5, Class 150 / 300 / 600|
|BS 10 Table D / E / F / H|
|PN 6 / PN 10 / PN 16 / PN 25 / PN 40 / PN 64|
|DIN Standard / JIS Standard / IS Standard|
|Butt Weld End to ANSI B 16.25|
|Manufacturing Size Range||1/2" (DN15) to 24"(DN 600)|
|Pressure Rating of Valve||150# / 300# / 600#|
|PN 10 / PN 16 / PN 25 / PN 40 / PN 64 / PN 100|
Wafer Type Check Valve
1) Size Range : 40 mm to 600 mm
2) Design & Face to Face Dimensions : API 6D and ANSI B 16.10
3) Pressure testing : API 598
4) Flange Mounting Conformity : ANSI B 16.5 Class 150, DIN PN 10 & 16, BS 10 Table 'D' and 'E'
5) Pressure Rating : PN 16 (Max)
MATERIAL OF CONSTRUCTION :
Body : SGI /WCB/ CF8/ CF8M/CS-IS 2062
Disc : SGI /WCB/CF8/CF8M
Seat : EPDM / Viton/ Nitrile/ Neoprene / Hypalon / PTFE or GFT