Gas pressure reducing valve

NegotiableUpdate on 05/02

Model

Nature of the Manufacturer: Producers

Product Category

Place of Origin

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Overview

YK43F-16YK43F-25YK43F-40YK43F-64

Product Details

detailed introduction

YK43X/F type gas pressure reducing valve

YK43X/F type gas pressure reducing valveStructural characteristics and uses

This series of pressure reducing valves 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, spring and other parts.

The pilot valve is mainly composed of valve seat, valve disc, diaphragm, spring, regulating spring and other parts. By adjusting the spring pressure to set the outlet pressure and using a diaphragm to sense the outlet pressure

The force changes, and the opening and closing of the pilot valve drives the piston to adjust the size of the overcurrent area at the throttling part of the main valve, achieving the function of pressure reduction and stabilization.
This product is mainly used for gas pipelines, such as air, nitrogen, oxygen, hydrogen, liquefied gas, natural gas, and other gases.

YK43X/F typeMain technical parameters and performance indicators

Nominal pressure (Mpa)	1.6	2.5	4.0	6.4	10.0	16.0
Shell test pressure (Mpa)*	2.4	3.75	6.0	9.6	15.0	24
Sealing test pressure (Mpa)	1.6	2.5	4.0	6.4	10.0	16.0
Zui High Import Pressure (Mpa)	1.6	2.5	4.0	6.4	10.0	16.0
Export pressure range (Mpa)	0.1-1.0	0.1-1.6	0.1-2.5	0.5-3.5	0.5-3.5	0.5-4.5
Pressure characteristic deviation (Mpa) △ P2P	GB12246-1989
Flow characteristic deviation (Mpa) P2G	GB12246-1989
Zui small pressure difference (Mpa)	0.15	0.15	0.2	0.4	0.8	1.0
leakage	X/F (polytetrafluoroethylene/rubber): O Y (hard seal): GB12245-1989

*Shell test does not include diaphragm and top cover

YK43X/F typeMain component materials

Part Name	Part material
Valve body, valve cover, bottom cover	WCB/FCB*
Valve seat disc	2Cr13/304*
cylinder liner	2Cr13/25 (hard chrome plating)/304*
piston	2Cr13/Copper Alloy/Copper Alloy*
piston ring	Alloy cast iron/para polystyrene*
Guide valve seat and guide valve stem	2Cr13/304*
diaphragm	1Cr18Ni9Ti
Main valve guide valve spring	50CrVA
adjust the spring	60Si2Mn
Sealing gasket (X/F model)	Rubber/PTFE
Valve body and valve cover	25/304*

*Materials used in oxygen media

YK43X/F typeFlow coefficient (Cv)

DN	15	20	25	32	40	50	65	80	100	125	150	200	250	300	350	400	500
Cv	1	2.5	4	6.5	9	16	25	36	64	100	140	250	400	570	780	1020	1500


	YK43X/F typeDimensions (PN1.6-4.0 single)Position: mm

Nominal diameter DN	External dimensions
	L		H	Hl
	1.6/2.5MPa	4.0MPa	H	Hl
15	160	180	290	90
20	160	180	300	98
25	180	200	300	110
32	200	220	300	110
40	220	240	320	125
50	250	270	320	125
65	280	300	325	130
80	310	330	365	160
100	350	380	365	170
125	400	450	475	200
150	450	500	475	210
200	500	550	515	240
250	650		560	290
300	800		705	335
350	850		745	375
400	900		780	405
450	900		730	455
500	950		835	465


	YK43X/F typeDimensions (PN6.4-16.0) sheetPosition: mm

Nominal diameter DN	External dimensions
	L		H	Hl
	6.4MPa	10.0/16.0MPa	H	Hl
15	180	180	300	100
20	180	200	310	105
25	200	220	31	120
32	220	230	310	120
40	240	240	335	135
50	270	300	335	135
65	300	340	340	140
80	330	360	380	170
100	380		380	185
125	450		490	215
150	500		490	225
200	550		535	260
250	650		580	310
300	800		725	355
350	850		765	395
400	900		800	435
500	950		855	495

YK43X/F typeOrdering Instructions

Product model nominal pressure nominal diameter connection flange standard rated flow coefficient Cv inlet pressure regulation range working medium and medium temperature