A. Technical data: - Material: Brass. - Maximum load: 16 kg/cm². - Maximum applicable notebook size: 0.05 - 0.8 MPa (7.25 - 116 psi). - Interface size: DN20 - Inlet pressure: 1.6 MPa (maximum)/232 psi. - Weight: 425 grams. B. Packaging contents: - 1 pressure gauge. - 1 water pressure reducing valve made of brass. C. Precautions: - The water - flow direction for valve body installation should be consistent with the direction marked on the valve. If the direction is incorrect, the water pressure gauge may show no reading. After installation, the valve needs to be adjusted to an appropriate pressure range to prevent potential damage to the pressure gauge due to excessive pressure or the inability of the pressure gauge to work properly due to low pressure. - Installing one water pressure reducing valve can help solve the problem. - When the water pressure is high, the electric water heater may make abnormal noises, and the safety valve may make a ticking sound and leak water. - A water pressure of 0.3 MPa for the water purifier can be considered high. - The water pipes may burst and water may overflow. D. Six major advantages: - Filtration design/anti - clogging: The water inlet is equipped with a stainless - steel filter, which can filter particles in the water, protect the valve body from damage, and extend its service life. - Thickened interface/clear threads: The main body is made by a one - time forging process, with a thickened threaded interface design, which is easy to install and may have no water leakage. - Adjustable design/pressure: It can adjust different pressure values and has a wide range of applications. - Valve body marking/installation direction: The pressure reducing valve can be installed horizontally or vertically, and the water - flow direction should be the same as the direction marked on the valve. - Manual pressure adjustment method: Use a hexagonal pressure adjustment wrench to adjust the pressure according to the actual water pressure. You can remove the protective cover on the upper part of the pressure reducing valve by rotating it counter - clockwise by hand, insert the hexagonal wrench into the hole on the upper part to adjust the water pressure: 0.05 - 0.8 MPa (7.25 - 116 psi), suction pressure: 1.6 MPa (maximum)/232 psi. Rotate counter - clockwise to reduce the water pressure and clockwise to increase the water pressure. - Pressure gauge installation method: The pressure reducing valve has a reserved pressure gauge interface. After installing the pressure gauge, it can visually display the real - time pressure. The pressure gauge can be installed and connected to the outlet of the pressure reducing valve. First, use an adjustable wrench to remove the cap on the pressure gauge interface, and then install it. When installing, a gasket is already provided at the interface, and there is no need to directly screw on Teflon tape for installation.