Mini Type Pneumatic Adjusting Valve

Mini Type Pneumatic Adjusting Valve:

1. Valve Material:

Body, Bonnet : HT200、ZG230—450、ZG1Cr18Ni9Ti
Disc, Seat: 1Cr18Ni9Ti、Stellite Overlaid
Soft sealing disc: RPTFE
Packing: PTFE, Flexible Graphite, SS Bellow
Gasket: Rubber asbestos plate, asbestos spiral wound
Film cover: A3
Bellow film: NBR spiral wound reforced terylene textile.
Spring: 60Si2Mn
Stem, Thrust shaft: 2Cr13、1Cr18Ni9Ti
Sleeve: 2Cr13

2. Valve Specification:

Model: ZJHP, ZJHM

Nominal Diameter DN mm		20				25	32	40	50	65	80	100	125	150	200	250	300
		(10)	(12)	(15)	(20)
Rating Flux coefficient KV	Line	1.8	2.8	4.4	6.9	11	17.6	27.5	44	69	110	176	275	440	690	1100	1760
	Equal percentage	1.6	2.5	4.0	6.3	10	16	25	40	63	100	160	250	400	630	1000	1600
Rating Travel mm		10				16		25		40			60			100
Valid area of the film Ae cm2		280						400		600			1000			1600
Signal range Pr KPa		20～100、40～200
Air supply pressure Ps KPa		0.14～0.4
Intrinsic flux characters		line, percentage
R intrinsic adjustable ratio		50：1
The allowed leakage		Metal to metal sealing seat: class IV, soft sealing seat: class VI
Nominal pressure PN MPa		1.6、4.0、6.4
Working temperature ℃	Normal temperature model	-20～200、-40～250、-60～250
	Cooling model	-40～450、-60～450
	High temp. model	450～560
	Low temp. model	-60～-100、-100～-200、-200～-250