Hiro nisha is one of the foremost indian manufacturer of pump valves,
There are a variety of valve types which can be offered for different liquid characteristics ,for example:
Ball valve- this type is suitable for high viscosity liquids, slurry or where the speed of the pump is very slow.
Plate valve- this is appropriate for high flow, high speed & clean liquids. They provides quiet and smooth operation.
Wing valve- this type is best for high-pressure and low viscosity liquid.