The UNIVAL valve guarantees a perfect seal and one of the lowest pressure drops, this is because the components are designed with a special fluodinamlco profile and the seal contact surfaces are subjected to special machining that allows water to flow quickly without friction. The materials used, all nontoxic, are: brass body 0T 58 UNI 5705/65, polyamide internal mechanism, l8/8 INOX steel spring, and nitrile rubber seal. 
The return spring allows the valve to be mounted in any position and ensures quietness during the passage of water. With the addition of the strainer, a foot valve is obtained.

UNIVAL - Check Valves

This valve guarantees a perfect sealing and one of the lowest load losses because its components have been designed with a special dynamic profile, which allows water to slide rapidly and with no friction, and the sealing surfaces are machined in a special way. The materials used, all non-toxic, are body in brass OT 58 UNI 5705/65, the internal mechanism in polyamide, spring stainless steel INOX 18/8 and seal in nitrile rubber. The return spring enables the valve to be mounted in any position. With the addition of a suction rose, a foot valve is obtained.

UNIVAL - Foot Valves

This valve guarantees a perfect sealing and one of the lowest load losses because its components have been designed with a special dynamic profile, which allows water to slide rapidly and with no friction, and the sealing surfaces are machined in a special way. The materials used, all non-toxic, are body in brass OT 58 UNI 5705/65, an internal mechanism in polyamide, spring stainless INOX 18/8 and seal in nitrile rubber. The return spring enables the valve to be mounted in any position. With the addition of a suction rose, a foot valve is obtained.

Water Escape Valves

The system, mounted in a surge tank with submerged pump, feeds a quantity of air (at atmospheric pressure), every time the pump starts, equal to the section area of the pipe times the distance of the water level from the point where the valve is connected, which is about 3 mt.

Strainers

The water escape valve is necessary for a surge tank with a submerged electric pump with a check valve. It allows the emptying of the water column and it guarantees, therefore, a normal air feed into the surge tank, assuring excellent working.

Strainers

Code                   Connection 
050.0020                    3/8"
050.0030                    1/2"
050.0040                    3/4"
050.0050                      1"
050.0060                   1. 1/4"
050.0070                   1 .1/2"
050.0080                       2"
050.0090                    2. 1/2"
050.0100                       3"
050.0110                       4"

Watch how the valve works