Ball Type Check Valves (NRV) B-01 was the first of the valve at Tooflow 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 Tooflow 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.
| Description | Standard Material | On Request |
|---|---|---|
| Body / Cover | Cast Iron (GG25) | S.G. Iron (DI) / WCB / Stainless Steel |
| Ball | Nitrile Reinforced | Neoprene / EPDM |
| Seat Ring | LT Bronze | Stainless Steel |
| Fasteners | Carbon Steel | Stainless Steel |
| Paint | Enamel / Epoxy Paint | - |
| End Connection | Flanged | - |
| Size Range | 25 mm to 350 mm | |
| Pressure Testing |
Body: 1.5 × PN Seat: 1.1 × PN |
|
| PRESSURE RATING - KPa |
25 mm to 125 mm : PN 1.6 150 mm to 300 mm : PN 1.0 350 mm : PN 0.6 |
|
| Installation | Horizontal as well as Vertical | |
| Face to Face Length | IS 5312 Part I - 1984 / DIN 3202 - F6 | |
| Temperature | Suitable up to 80°C | |
Dimensionally compatible with IS 5312 (Face to Face).
Can be installed both Horizontally and Vertically.
Operates silently.
Operates at temp 800C continuously (For 100°C applications, please contact Tooflow Engineering.)
| Dimensions (A = Valve size in mm) | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| A | 25 | 40 | 50 | 65 | 80 | 100 | 125 | 150 | 200 | 250 | 300 | 350 |
| D | 115 | 150 | 165 | 185 | 200 | 220 | 250 | 285 | 340 | 395 | 482 | 527 |
| L | 144 | 174 | 200 | 240 | 260 | 300 | 350 | 400 | 500 | 600 | 700 | 800 |
| H | 115 | 160 | 180 | 210 | 230 | 280 | 340 | 400 | 500 | 570 | 680 | 800 |
| T | 15 | 15 | 16 | 16 | 19 | 20 | 21 | 21 | 22 | 24 | 25 | 29 |