Spring-loaded micro-opening safety valve A41H-16C is widely used in the power industry. This type of safety valve is designed to open automatically when the set pressure is exceeded, release excess pressure to prevent equipment damage, and reclose after the pressure drops to a safe range. In order to ensure the accuracy of its opening and closing characteristics, regular inspections are required.

In terms of records and preparations, you should first consult the operating manual provided by the manufacturer to understand the specific maintenance requirements and recommendations, and record the date of the last inspection to ensure that the inspection is carried out according to the prescribed cycle. At the same time, you also need to prepare necessary tools, such as wrenches, screwdrivers, etc.

The preparations before the inspection include isolating the system, ensuring that the system where the safety valve A41H-16C is located has been isolated and completely depressurized, and then removing dust and dirt around the safety valve to ensure a good working environment.

For the inspection of the opening characteristics, a manual lifting test can be performed, that is, using a lifting rod (if the safety valve is equipped) or manually to gently lift the valve disc and observe whether it can open smoothly. In addition, the system pressure can be increased to the set opening pressure of the safety valve to observe whether the safety valve can open accurately at the predetermined pressure.

For the check of closing characteristics, after the safety valve is opened, the system pressure can be gradually reduced to the return seat pressure point to observe whether the safety valve can be closed in time. In addition, it is also necessary to check whether there is leakage after the safety valve is closed.

In addition to the above two main inspections, it is also necessary to check the spring of the safety valve A41H-16C to see if there is corrosion or deformation; check whether the valve seat and valve disc are worn or damaged; and ensure that all connections are tightened without looseness.

After completing the inspection, it is necessary to record the results of each inspection in detail, including any problems found and measures taken, and if there are any problems or abnormalities, they should be reported to professionals for repair immediately.

It is worth noting that before any inspection, please make sure that all safety regulations and standard operating procedures have been followed. If there is a serious problem with the safety valve, it should be repaired or replaced by a professional technician.

Yoyik offers various types of valves and pumps and its spare parts for power plants:
globe valve for steam line KHWJ50F-1.6P
hydraulic solenoid coil PCV-03/0560
water ring vacuum pump working principle P-1741
Sealing gasket for corrugated pipe shut-off valve KHWJ25F3.2P
gravity float valve PY-40
Manual shut-off valve WJ61F-16P
Hydraulic motor unloading valve XH27 WJHX.9340A
shutdown trip AST solenoid valve GS021600V
Bellows valves KHWJ65F1.6P
accumulator oil-feeding globe valve NXQ-A-40/31.5-L-Y
Seal & bearing kit M3227
wet solenoid directional valve 4WE10D33/CG220N9K4/V
hydraulic pump accumulator A B80/10
Power plant shut-off valves WJ80F3.2P
Butterfly Valve BDB-250/150
rotor screw pump HSNH280-46NZ
ANEMOMETER WIND SPEED WS-5300 CA
Medium pressure insert rings for dome valves DN80 P29612D-00
Bellows valves WJ61W-25H
solenoid valve types J-220VDC-DN10-DOF/20D/2N