Pilot piston steam pressure reducing valve

NegotiableUpdate on 05/02

Model

Nature of the Manufacturer: Producers

Product Category

Place of Origin

Online Consult

Overview

Y43Y-40Y43Y-64Y43Y-100Y43Y-160

Product Details

Y43Y-40

Y43Y-64

Y43Y-100

Y43Y-160

detailed introduction

Y43HY43YY43FPilot piston steam pressure reducing valve

Structural 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, using a diaphragm to sense changes in outlet pressure, and driving the piston to adjust the size of the overcurrent area at the throttle position of the main valve through the opening and closing of the pilot valve, the pressure reduction and stabilization function is achieved.
The main product is mainly used in steam pipelines to reduce pressure and stabilize pressure.

Main 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	GB12245-1989

*Shell test does not include diaphragm and top cover

Main component materials：

Part Name	Part material
Valve body, valve cover, bottom cover	WCB
Valve seat disc	2Cr13
cylinder liner	2Cr13/25 (hard chrome plating)
piston	2Cr13/copper alloy
piston ring	alloy cast iron
Guide valve seat and guide valve stem	2Cr13
diaphragm	1Cr18Ni9Ti
Main valve spring	50CrVA
Main spring of pilot valve	50CrVA
adjust the spring	60Si2Mn

flow coefficient（Cv）：Unit: mm

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

Overall dimensions（PN1.6-4.0）：Unit: mm

Nominal Diameter DN	External dimensions
	L		H	Hl
	1.6/2.5MPa	4.0MPa	H	Hl
15	160	180	295	90
20	160	180	330	98
25	180	200	330	110
32	200	220	330	110
40	220	240	345	125
50	250	270	345	125
65	280	300	350	130
80	310	330	385	160
100	350	380	385	170
125	400	450	400	200
150	450	500	415	210
200	500	550	475	240
250	650		525	290
300	800		580	335
350	850		620	375
400	900		660	405
450	900		730	455
500	950		750	465

Overall dimensions（PN6.4-16.0）：Unit: mm

Nominal Diameter DN	External dimensions
	L		H	Hl
	6.4MPa	10.0/16.0MPa	H	Hl
15	180	180	305	105
20	180	200	340	105
25	200	220	340	120
32	220	230	340	120
40	240	240	355	135
50	270	300	355	135
65	300	340	360	140
80	330	360	395	17
100	380		400	185
125	450		415	215
150	500		430	225
200	550		495	260
250	650		545	310
300	800		600	355
350	850		640	395
400	900		690	435
500	950		780	495

Ordering Notice:

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

Wuxi pilot piston steam pressure reducing valve