YGa43H High sensitivity and high flow steam pressure reducing valveDetailed product description：

YGa43H pressure reducing valve belongs to the pilot piston pressure reducing valve. It consists of two parts: the main valve and the pilot valve. The main valve is mainly composed of valve seat, main valve disc, piston, cylinder liner, spring and other parts. The pilot valve is mainly composed of valve seat, valve disc, diaphragm, spring, regulating spring and other parts. The YGa43H pressure reducing valve has made significant improvements on the basis of ordinary pressure reducing valves, increasing the piston area and changing the throttling structure. By changing the sealing form and increasing the overcurrent area, the performance has been greatly improved in terms of sensitivity, flow rate, and lifespan. YGa43H pressure reducing valve is mainly used in steam pipelines, suitable for steam pipelines with large flow rates, large changes in flow rates, and large changes in inlet pressure.

YGa43H High Sensitivity High Flow Steam Pressure Reducing Valve Main Component Materials:

Part Name	Part material
Valve body, valve cover, bottom cover	WCB
Valve seat disc	2Cr13
Cylinder liner piston	Aluminum iron bronze
Diaphragm	1Cr18Ni9
piston ring	Alloy cast iron/para polystyrene
Guide valve seat and guide valve stem	2Cr13
Main valve spring	50CrVA
Main spring of pilot valve	50CrVA
Adjusting spring	60Si2Mn

YGa43H High Sensitivity High Flow Steam Pressure Reducing Valve Main Technical Parameters and Performance Indicators:

Nominal pressure (Mpa)	one point six	two point five	four	six point four	ten	sixteen
Shell test pressure (Mpa) *	two point four	three point seven five	six	nine point six	fifteen	twenty-four
Sealing test pressure (Mpa)	one point six	two point five	four	six point four	ten	sixteen
Maximum import pressure (Mpa)	one point six	two point five	four	six point four	ten	sixteen
Export pressure range (Mpa)	0.04-1.0	0.05-1.6	0.08-2.5	0.2-3.5	0.5-3.5	0.5-4.5
Pressure characteristic deviation (Mpa) △ P2P	GB12246-1989
Flow characteristic deviation (Mpa) P2G	GB12246-1989
Minimum pressure difference (Mpa)	zero point zero seven	zero point one	zero point one five	zero point four	zero point five	zero point eight
leakage volume	GB12245-1989
Shell test does not include diaphragm and top cover

Flow coefficient (Cv)

DN

fifty

sixty-five

eighty

one hundred

one hundred and twenty-five

one hundred and fifty

two hundred

two hundred and fifty

three hundred

three hundred and fifty

four hundred

five hundred

Cv

twenty-four

thirty

fifty

eighty-five

one hundred and thirty

one hundred and ninety

three hundred

four hundred and eighty

six hundred and eighty

nine hundred and twenty-five

one thousand one hundred and fifty

one thousand and nine hundred

YGa43H High Sensitivity High Flow Steam Pressure Reducing Valve Dimensions: (PN6.4-16.0)

Nominal diameter DN	External dimensions
	L		H	Hl
	6.4MPa	10.0/16.0MPa
fifteen	one hundred and eighty	one hundred and eighty	two hundred and eighty	one hundred
twenty	one hundred and eighty	two hundred	two hundred and eighty	one hundred
twenty-five	two hundred	two hundred and twenty	three hundred	one hundred and fifteen
thirty-two	two hundred and twenty	two hundred and thirty	three hundred	one hundred and fifteen
forty	two hundred and forty	two hundred and forty	three hundred and fifteen	one hundred and thirty
fifty	two hundred and seventy	three hundred	three hundred and forty	one hundred and thirty-five
sixty-five	three hundred	three hundred and forty	three hundred and fifty-five	one hundred and fifty
eighty	three hundred and thirty	three hundred and sixty	three hundred and seventy	one hundred and seventy-five
one hundred	three hundred and eighty		four hundred and fifty	two hundred and five
one hundred and twenty-five	four hundred and fifty		five hundred and ten	two hundred and thirty-five
one hundred and fifty	five hundred		five hundred and fifty-five	two hundred and seventy-five
two hundred	five hundred and fifty		six hundred and forty	three hundred
two hundred and fifty	six hundred and fifty		seven hundred and twenty	three hundred and thirty-five
three hundred	eight hundred		eight hundred and thirty	three hundred and seventy-five
three hundred and fifty	eight hundred and fifty		eight hundred and eighty	four hundred and ten
four hundred	nine hundred		one thousand and twenty	four hundred and forty-five
five hundred	nine hundred and fifty		one thousand and eighty	five hundred and fifteen

YGa43H High Sensitivity High Flow Steam Pressure Reducing Valve Dimensions: (PN1.6-4.0)

Nominal diameter DN	External dimensions
	L		H	Hl
	1.6/2.5MPa	4.0MPa
fifteen	one hundred and sixty	one hundred and eighty	two hundred and sixty-five	eighty-five
twenty	one hundred and sixty	one hundred and eighty	two hundred and sixty-five	eighty-five
twenty-five	one hundred and eighty	two hundred	two hundred and eighty	ninety-five
thirty-two	two hundred	two hundred and twenty	two hundred and eighty	ninety-five
forty	two hundred and twenty	two hundred and forty	two hundred and ninety	one hundred and five
fifty	two hundred and fifty	two hundred and seventy	three hundred	one hundred and thirty
sixty-five	two hundred and eighty	three hundred	three hundred and fifteen	one hundred and forty-five
eighty	three hundred and ten	three hundred and thirty	three hundred and thirty	one hundred and seventy
one hundred	three hundred and fifty	three hundred and eighty	four hundred and five	two hundred
one hundred and twenty-five	four hundred	four hundred and fifty	four hundred and fifty	two hundred and twenty-five
one hundred and fifty	four hundred and fifty	five hundred	four hundred and eighty-five	two hundred and sixty-five
two hundred	five hundred	five hundred and fifty	five hundred and seventy	two hundred and ninety
two hundred and fifty	six hundred and fifty		six hundred and forty	three hundred and twenty-five
three hundred	eight hundred		seven hundred and forty	three hundred and sixty
three hundred and fifty	eight hundred and fifty		eight hundred and ten	three hundred and ninety-five
four hundred	nine hundred		nine hundred and fifty	four hundred and thirty
five hundred	nine hundred and fifty		one thousand and eighty	five hundred

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