Water Ring Type Vacuum Pumps

These combine in them the two-fold features of suction and pressure and hence the same unit can be employed for either function. When used as vacuum pump, they can create vacuum up to 710 mm (28" Hg) provided the temperature of the sealant water is below 30 °C & barometric pressure at site is 30 Inches of Hg.
Generally, the main casing & almost all the components are fabricated from C.I. except the main shaft, which is of MS / EN-8. However, it is also offered in various combinations of resistant materials for specific applications. Details are supplied on demand.

One of the main characteristics of Promivac water-ring pumps is that even under harsh conditions or under lack of proper supervision, these pumps continue to give satisfactory performance because none of its internal parts demand greasing or lubrication. These are least affected if a small quantity of vapour, dust, gas, or other such impurities enter its body through the suction nozzle.

These are best suited for pharmaceutical, Food, Confectionery, Petro-chemicals, Textiles and plastic industries, Paper and Sugar mills, Cement, Metallurgical Laboratories and Furnaces, Refrigeration Plants, Distilleries, Pneumatic Conveying, Cigarette, Tiles and Ceramics industries etc. These pumps are approved for government, semi government and private industrial projects all over India.

Model No.	Motor hp Reqd.	Pump Speed in rpm	Free Air Diplacement in m3/hr	Sealing Water Reqd. in lpm
PVW-10	1	2800	8	3
PVW-20	2	2800	30	4
PVW-30	3	2800	50	7
PVW-50	5	2800	80	10
PVW-75	7.5	2800	120	14
PVW-100	7.5	1400	160	16
PVW-150	10	1400	220	20
PVW-200	15	1400	330	30
PVW-250	20	1400	440	40
PVW-300	30	980	720	60
PVW-400	40	980	1080	100
PVW-650	75	725	1500	150
PVW-900	100	725	2025	200