1、 Product Description:

Nominal diameter (mm): DN50, DN65

Nominal working pressure (MPA): 1.6

Strength test pressure (MPA): 2.4

Suitable medium, clear water, foam mixture.

Model and specification: unit remarks

Sn65 inner wire only copper

2、 Working principle

The indoor fire hydrant is opened and closed by rotating the hand wheel to make the valve rod move back and forth in a straight line. When the sealing gasket on the valve disc presses the valve seat, the indoor fire hydrant is closed. When in use, just rotate the hand wheel according to the opening direction on the hand wheel and open the indoor fire hydrant to take water and extinguish the fire.

1. Pressure reducing and stabilizing indoor fire hydrant: on the basis of ordinary indoor fire hydrant, a pressure reducing and stabilizing device is added, which is composed of pressure reducing flap, compression spring, cover and other parts. No matter how the pressure before the bolt changes, the pressure and flow at the water outlet can be kept stable through the pressure reducing and stabilizing device, so as to achieve the purpose of pressure reducing and stabilizing.

2. Rotary indoor fire hydrant: on the basis of ordinary indoor fire hydrant, it has the function that the hydrant body can rotate 360 ° horizontally around the center of the base.

3. Rotary pressure reducing and stabilizing indoor fire hydrant: on the basis of ordinary indoor fire hydrant, rotary and pressure reducing and stabilizing devices are added, which can have the dual functions of rotary and pressure reducing and stabilizing at the same time.

3、 Installation and use

Precautions during installation:

Before and after installation, the dirt in the bolt body and pipeline shall be thoroughly cleaned, otherwise the sealing gasket will be damaged and the sealing can not be guaranteed.

1. The indoor fire hydrant shall be arranged in the fire hydrant box according to the specified position (the center of the hydrant mouth should be 1.1m from the ground, and the hydrant mouth should face outward) to connect it with the fire water supply pipeline in the building. During installation, the pipeline and the hydrant body shall be kept clean. After installation, the sealing performance test shall be carried out under the water pressure of 1.6Mpa for 2 minutes, and there shall be no leakage at all connecting parts.

2. In case of fire, connect the hose interface with the indoor fire hydrant interface, start the fire pump, rotate the hand wheel according to the opening direction on the hand wheel, and open the indoor fire hydrant to extinguish the fire.

5、 Maintenance and service

1. Regularly check the indoor fire hydrant for corrosion and water leakage, and check whether the sealing gasket is intact. If it is damaged, it shall be replaced in time.

2. After use, apply lubricating oil on the valve rod of indoor fire hydrant