CS215668B1 - Water main valve with non-return flap - Google Patents

Description

The invention relates to water valves in which the automatic stopping of the water by unscrewing the upper part of the valve in order to carry out the desired repair thereof is provided.

The known water valves for the repair of the upper part of the valve have flow-through brass valves installed in the footrests for each housing unit, one for cold and the other for hot water, with which the water flow to the repaired valves stops before repair.

The above-mentioned deficiencies are eliminated by a water valve with a non-return valve, which is located in the inlet chamber of the valve body and designed to remove the water flow safely when unscrewing the upper part of the valve from the valve body. .

In the accompanying drawing, three examples of actuating the flap according to the invention (shown in thick contours) are shown.

In FIG. 1 shows the position of the flap valve when the valve is completely closed and hence the water flow. In FIG. 2 shows the position of the flap valve when the valve is opened when the water is flowing; and FIG. 3 shows how the top of the valve is unscrewed from the valve body and how the back flap closes the water flow. Fig. 4 is a plan view and FIG. 5 is a side elevational view illustrating the guide flap of the rear flap over its sealing rubber. Fig. 6 is a plan view and FIG. 7 is a side elevational view of the non-return flap closing cap inserted into the inlet chamber of the valve body and guiding and centering the non-return flap.

215 668

When the valve is completely closed (Fig. 1), the flap 12 with the teenage rubber 11 in the inlet chamber of the valve body J is extended to the maximum from the valve seat 8 and the water is closed by a valve 8 of the valve 4. for a removable flow valve seat 6.

When the water flow (Fig. 2) is opened by means of the handle on the spindle 8 and the gasket 8, it separates from the exchangeable flow seat 8, thereby allowing the water to flow through the valve, with the flap 12 and the sealing rubber 11 returned from the displacement maximum (Fig. 1). partially sleep * (Fig. 2) and approach the flow seat 5, but do not close the water, which regulates the passage of the stub 12 of the bad valve 12, supported on the upper part of the valve and its valve disk 6, exactly the work required. When water is poorly closed, the damper 12 is pushed back to its maximum (Fig. 1).

To repair the correct part of the valve 4 or to replace the flow through valve seat, it unscrews and the upper part of the valve 4 out of the body and valve 4 (Fig. 3) and by keeping the passage δΡΡ 10 j free and not resting on the valve plate. 7, the valve flap 12, the back flap 12 and the sealing rubber 11 engage with the spring 14 and the water pressure onto the flow seat 8 and securely shut off the water flow through the valve. This makes two flow-through valves made of moaadze installed in the footrests for each housing unit.

The non-return flap 12 (Fig. 5) has guide wings 16 moving in the inlet chamber of the valve 1 and together they form 4 annular cut-outs through which the water flows and its area aa must equal the flat water flow through the interchangeable valve seat. approx. 20% extra.

The closure cap 15 (Figs. 6 and 7) has 4 flow holes 17 which must also give together a flow area size of the interchangeable flow valve seat J + of about 20% more.

Claims (3)

BACKGROUND OF THE INVENTION A water valve provided with a back flap for stopping the flow of water after unscrewing the valve body from the valve body for repair, characterized in that the back flap (12) is connected to the passage pin (10) and displaceably mounted in the inlet chamber of the valve body (1) wherein the back flap (12) is supported on the psiiral and spring (14) to press it against the flow seat (5). 1 drawing