H47H constant pressure check valve

Product description

H47H uniform check valve is a spring adjusted swing check valve, can be used in a variety of pump centralized control system of the pipeline, to avoid the medium countercurrent, the valve structure is simple, reliable use, has been widely used in petroleum, chemical plants, electric power engineering, water engineering, light industry and other units

Product overview

H47H type uniform check valve is suitable for water, refined oil, vaporized oil and other media on the pipeline. ·
1: Key Shape Specification: DN50-250 ·
2: Pound class: PN1.0-2.5 ·
3: Material of key parts: oil circuit board, cast steel parts ·
4: Applicable media: water, refined oil, liquefied petroleum gas ·
5: Operating temperature: -40~ 130ºC ·
6: Design scheme and application specification: GB, BS, ANSI, JIS, DIN, API

Commodity structure characteristics and functions

The valve is composed of swing check valve and spring, with the net weight of the valve disc itself, the interaction force of the spring and the medium pressure difference to close the gate valve, to avoid the medium counterflow. When the variable pressure anchor bolt is adjusted to make the spring in a random situation, when the medium in the valve body according to the valve flap, the valve flap can be rotated around the shaft pin for fitness movement, the medium according to the hydraulic cylinder lower cover hole into the piston rod under the seat up; When the spring is in the reduced situation, according to the piston rod the seat to the bottom and remote rod contact, limit the fitness of the valve disc.

Product instruction manual

When using this valve, it is necessary to check and clean the valve inside the dirt.

2. Check whether the zero part of the oil circuit board has fallen off or has been lost.
3. When this valve is used, check that the oil circuit board is beautiful. Gate valve can not be disassembled without authorization, if you want to disassemble, be sure to be under the guidance of professional and technical personnel.
4. When the valve is operated, the working pressure need not be too high. Generally, 0.3~0.4MPa is used.
5. Pay attention to the effect of the working pressure should not be too fast, so that the valve can not be sealed. When it is used again, the working pressure is adjusted to 0MPa, so that the spring responds and pressurizes again.
6. How to apply does not meet the regulations, adverse effects at one's own expense.
7. Check the gate valve on time.

Product connection specifications