JLH41H/Y fireproof throttling check multifunctional globe valve

Reference standard:

Design according to the provisions of GB12235
Flanges shall comply with the provisions of JB79
The structural length shall be in accordance with the regulations of the enterprise
Pressure test shall be conducted in accordance with the provisions of ZBJ16006

Design in accordance with ANSI B16.34
Flanges according to ANSI B16.5
The structural length shall be in accordance with the provisions of the enterprise standard
The pressure test shall be conducted in accordance with the provisions of API598

Structural characteristics of JLH41H/Y fireproof throttling check multifunctional globe valve:

1. The functions of the three types of valves, namely cut-off, throttling, and check, can replace the three valves of pump outlet cut-off, throttling, and check, achieving one valve for multiple purposes.
2. It can be used as an automatic balance distribution valve for pipelines. As long as the flow rate is not adjusted for the first time, there is no need to adjust it again in the future when the pump is stopped or started, and the flow rate adjusted for the first time is always maintained.
3. After stopping the pump, the valve disc automatically and quickly checks back, and the water hammer closes smoothly without water.
4. If the pump is stopped or repaired for a long time, to ensure safe sealing, the valve stem can be screwed to the bottom and pressed against the valve disc to achieve the shut-off valve function.

The JLH multifunctional valve for shut-off, throttling, and check has completely replaced the traditional pipeline equipment that requires the installation of three valves: shut-off valve, regulating valve, and check valve. This greatly reduces investment, space, and installation costs

Characteristics Description of JLH41H/Y Fire resistant Throttle Check Multi functional Stop Valve

JLH cut-off, throttling and check multi-function valves combine the essence of the functions of traditional cut-off valves, regulating valves and check valves. 1. Cut off function: When the inlet pipeline stops supplying pressure or undergoes major repairs, to ensure that there is no leakage of pressure behind the valve, the cut off function can be implemented by instantly rotating the valve stem to push the valve disc towards the valve seat to close. 2. Throttle function: In order to ensure that the pressure and flow behind the valve meet the design requirements, a flow regulation function can be implemented. Instantaneous rotation of the valve stem reduces the flow and pressure, and counterclockwise rotation of the valve stem increases the flow and pressure. At the same time, fine adjustments can be made according to the scale on the valve stem and the pressure gauge before and after the valve (for transportation safety, pressure gauges are generally not included. If the user wants, please specify in the contract). 3. Check function: During temporary parking or pressure stoppage, it prevents the backflow of pressure fluid in the pipeline from damaging equipment in the pipeline or ensures the pressure behind the valve. At this time, the fluid behind the valve has not yet formed a backflow impact force, and the valve spring has already pushed the valve disc to close, effectively controlling the water hammer impact during check. 4. Swap function between straight through and angular installation: If the straight through installation is changed to angular installation, simply remove the connecting bolts between the inlet and outlet valve bodies, and rotate the inlet valve body 180 degrees to achieve angular installation (if the user needs the valve body to have interchangeable function or with pressure gauge 11AB screw holes, please specify it in the contract). 5. The JLH multifunctional valve for shut-off, throttling, and stop completely replaces the traditional pipeline equipment that requires the installation of three valves at the same time: shut-off valve, regulating valve, and stop valve. It has an average price reduction of 50%, a volume reduction of 65%, and a weight reduction of about 65%. It is an energy-saving, capital saving, and space saving updated product.

JLH41H/Y fireproof throttling check multifunctional globe valve