Piston gas pilot valve

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Piston gas pilot valve

Model: Yk43X / F / Y
Nominal diameter: DN15 ~ 500mm
Nominal pressure: PN1.6 ~ 16.0MPa
Main material: carbon steel, stainless steel
Temperature: 0 ~ 80 ℃
Operation: manual
Flange Standard: GB / T17241. 6, GB / T9113
Test standards: GB / T13927, API598

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產品詳細

YK43X pilot piston gas pressure regulator introduced

This series of pilot-piston gas pressure reducing valve belongs to the pilot piston type pressure reducing valve. The main valve and pilot valve composed of two parts. The main valve from the valve seat, the main valve disk, piston, spring and other components. Pilot valve mainly by the valve seat, disc, diaphragm, spring, adjusting spring and other components. By adjusting the spring pressure to set the outlet pressure, the use of diaphragm sensing outlet pressure changes, through the pilot valve opening and closing drive piston to adjust the size of the main valve throttle flow area, to achieve decompression regulator function. The pilot-style large diaphragm high sensitivity pressure reducing valve is mainly used for gas lines, such as air, nitrogen, oxygen, hydrogen, liquefied gas, natural gas and other gases.

YK43X pilot piston gas valve 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
Seal test pressure (Mpa)	1.6	2.5	4.0	6.4	10.0	16.0
The maximum inlet pressure (Mpa)	1.6	2.5	4.0	6.4	10.0	16.0
Outlet 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 characteristics deviation (Mpa) P2G	GB12246-1989
Minimum pressure difference (Mpa)	0.15	0.15	0.2	0.4	0.8	1.0
Leakage	X / F (polytetrafluoroethylene / rubber): OY (hard seal): GB12245-1989

*: Shell test does not include diaphragm, top cover

YK43X -type pilot-piston gas pressure relief valve main dimensions

DN		Dimensions
		L			H	Hl
		1.6 / 2.5MPa		4.0MPa
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
DN	Dimensions
	L				H	Hl
	6.4MPa	10.0 / 16.0 MPa
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