• Dec , 07 2023

1. Inspection and cleaning: Remove all foreign impurities and debris from the gasket compression surface, various fasteners (bolts, double headed bolts), nuts, and gaskets; Check for burrs, cracks, and other defects on fasteners, nuts, and washers; Check the flange surface for any warping or deformation, radial scratches, deep tool impact marks, or other defects that affect the correct seating of ...

• Dec , 07 2023

The installation of safety valves should meet the following requirements (1) Boilers with a rated evaporation capacity greater than 0.5t/h shall be equipped with at least two safety valves; Boilers with a rated evaporation capacity of less than or equal to 0.5t/h shall be equipped with at least one safety valve. Safety valves must be installed at the outlet of the separable economizer and the outl...

• Dec , 12 2023

Adjustment of safety valve opening pressure (set pressure): Within the specified working pressure range, the opening pressure can be adjusted by rotating the adjusting screw and changing the pre tightening compression amount of the spring. After removing the valve cover and loosening the locking nut, the adjustment screw can be adjusted. Firstly, increase the inlet pressure to make the valve jump ...

• Dec , 14 2023

Ball valves have evolved from plug valves. It has the same 90 degree rotation lifting action, but the difference is that the plug body is a sphere with a circular through-hole or channel passing through its axis. The ratio between the sphere and the channel should be such that when the sphere rotates 90 degrees, it should all appear spherical at the inlet and outlet, thereby cutting off the flow. ...

• Dec , 26 2023

The process of shell and sealing tests for turbine fixed ball valves in some artificial environments is as follows. The dual blocking and discharging function of the turbine fixed ball valve: a spring pre tightened floating valve seat is used to fix the turbine ball valve. When the valve is in two different states, fully open and fully closed, the fluid is blocked by the upstream and downstream va...

• Jan , 09 2024

A valve is a device used in a fluid system to control the direction, pressure, and flow of fluids. It is a device that enables the flow of medium (liquid, gas, powder) in the distribution and preparation, or stops and controls its flow rate. Valves are important control components in fluid transportation systems. Preparation before installation Before presenting it as a broad door, one should care...

• Jan , 11 2024

The safety valve plays a safety protection role in the system. When the system pressure exceeds the specified value, the safety valve opens and releases a portion of the gas in the system into the atmosphere, ensuring that the system pressure does not exceed the allowable value, thereby ensuring that accidents do not occur due to excessive pressure. Safety valve, also known as relief valve. The di...

• Jan , 23 2024

Working principle of pressure reducing valve 1) From the perspective of fluid mechanics, a pressure reducing valve is a throttling element that can change local resistance, that is, by changing the throttling area, the flow rate and fluid kinetic energy change, causing different pressure losses, and thus achieving the purpose of pressure reduction. It relies on the adjustment of the control and ad...

• Jan , 25 2024

Check valves may be the most easily misunderstood valve in history. If you mention check valves to most factory personnel, the typical reaction is "they don't work.". In fact, these personnel are likely to have removed internal components or refurbished the system to avoid using check valves. In other words, these valves may be the least popular valves currently in use. This article will explore t...