YD43HY High sensitivity steam pressure reducing valveDetailed product description：

The YD43H pressure reducing valve is a new type of pilot operated super large diaphragm pressure reducing valve developed with reference to advanced foreign products. The YD43H pressure reducing valve has made significant improvements on the basis of ordinary pressure reducing valves. The diaphragm adopts a new material and greatly processes the working area, so even slight changes in upstream pressure or downstream load of the valve can be timely and accurately fed back to the main valve diaphragm to adjust the opening of the main valve and ensure the stability of downstream pressure. Another prominent feature of YD43H pressure reducing valve is that multiple pilot valves can be installed and exchanged on the same valve body to achieve temperature control, upstream pressure control, remote switch control, etc. while stabilizing the pressure.

Main technical parameters and performance indicators of YD43H high-sensitivity pressure reducing valve:

Nominal pressure (Mpa)	two point five
Shell test pressure (Mpa) *	three point seven five
Sealing test pressure (Mpa)	two point five
Maximum import pressure (Mpa)	two point five
Export pressure range (Mpa)	0.02-1.6
Pressure characteristic deviation (Mpa) △ P2P	GB12244-1989
Flow characteristic deviation (Mpa) P2G	GB12244-1989
leakage volume	GB12245-1989
Shell test does not include diaphragm and valve cover.

YD43H High Sensitivity Pressure Reducing Valve Main Component Materials:

Part Name	Part material
Valve body and valve cover	WCB
valve seat	2Cr13
valve disc	2Cr13
valve stem	2Cr13
Diaphragm	1Cr18Ni9Ti
Adjusting spring	60Si2Mn

Flow coefficient (Cv)

DN	fifteen	twenty	twenty-five	thirty-two	forty	fifty
Cv	two point nine	five point three	eight point six	eleven point six	sixteen point five	twenty-nine point one

YD43H high-sensitivity pressure reducing valve connection size:

DN	L	H1	H	D
fifteen	one hundred and forty-seven	two hundred and thirty-five	one hundred and forty-five	two hundred and seven
twenty	one hundred and fifty-four	two hundred and thirty-five	one hundred and forty-five	two hundred and seven
twenty-five	one hundred and sixty	two hundred and thirty-five	one hundred and forty-five	two hundred and seven
thirty-two	one hundred and eighty	two hundred and fifty	one hundred and sixty	two hundred and twenty
forty	sixteen	two hundred and fifty	one hundred and sixty	two hundred and twenty
fifty	two hundred and thirty	two hundred and seventy	one hundred and eighty	two hundred and twenty

Connection type: ※ Flange type: RF FM RJ ※ Execution standard: JB79 GB9113 ANSI B16.5