ZJHM pneumatic fine small sleeve regulating valve

Category	Room temperature type	Medium temperature type
Model number	6 ZJHM-\| B K 64	40B ZJHM - G 64K
Specifications	DN~200

Technical parameters

[1] Main technical indicators of regulating mechanism

Process diameter mm				25	40		50	65	80	100	150		200
Valve seat diameter mm				25	32	40	50	65	80	100	125	150	200
Rated flow factor Kv		Straight line		11	17.6	27.5	44	69	110	176	275	440	690
		Equal percentage		10	16	25	40	63	100	160	250	400	630
Nominal pressure MPa
Stroke mm				16	25			40			60
Flow characteristics				Straight line, etc. %
Medium temperature ° C				-- 20~200 (room temperature type); -- 40~450 (medium temperature type)
Flange size and type				Cast iron flange according to GB/ T17241.6-1998, cast steel flange according to JB/ T79.2-94
Body material	PN MPa		0.6 1.6	HT200; Zg230-450; ZG1Gr18Ni9Ti; ZG0Cr18Ni12Mo2Ti
			4.0 6.4	ZG230-450; ZG1Gr18Ni9Ti; ZG0Cr18Ni12Mo2Ti
Valve plug				1Gr18Ni9; 0Cr18Ni12Mo2Ti
Upper valve cover type				Ordinary type (room temperature type); Hot plate type (medium temperature type)
Adjustable ratio				50:1

Note: Can provide users with ANSI, JPI, JIS foreign flange standards of products, the flange distance according to user needs to determine.
Main technical parameters of the actuator

Model	ZHA(B)-22	ZHA(B)-23	ZHA(B)-34	ZHA(B)-45
The effective area of the film is ²	350	350	560	900
Stroke mm	6, 10, 16	25	40	60
Spring range KPa	20 to 100; 40 to 200; 80 to 240; 20~60; 60 ~ 100

Performance indicators

Items		Index values	Items				Index values
Base error %	No locator	+ / - 5.0	Always point deviation %	Qi Pass	No positioner	Starting Point	+ / - 5.0
						End point	+ / - 2.5
	With positioner	+ / - 1.0			With positioner	Starting point	+ / - 1.0
						End point	+ / - 1.0
Return difference %	No locator	3.0		Air on	No positioner	Starting Point	+ / - 2.5
						End point	+ / - 5.0
	With positioner	1.0			With Locator	Starting point	+ / - 1.0
						End point	+ / - 1.0
Dead zone %	No locator	3.0	Allow leakage of 1/h			1 x 103 valve rated capacity
	With positioner	0.4
Rated stroke deviation %		+ / - 2.5

Allowable pressure difference

MPa

Switching mode	Actuator model	Spring range KPa	Air source pressure KPa	Accessories required	Nominal diameter mm
Switching mode	Actuator model	Spring range KPa	Air source pressure KPa	Accessories required	25	40	50	65	80	100	150	200
Air-to-close	ZHA-22	20-100. 20-100. 40-200.	140 250 400	- P P or R	3.00 6.4 6.4
	ZHA-23	20-100. 20-100. 40-200.	140 250 400	- P P or R		2.25 6.4 6.4	1.95 6.4 6.4
	ZHA-34	20-100. 20-100. 40-200.	140 250 400	- P P or R				2.36 6.4 6.4	2.04 6.4 6.4	1.67 6.4 6.4
	ZHA-45	20-100. 20-100. 40-200.	140 250 400	- P P or R							1.41 6.4 6.4	1.41 6.4 6.4
Air open	ZHB-22	20-100. 40-200. 80-240.	0	- P P or R	1.5 4.5 6.4
	ZHB-23	20-100. 40-200. 80-240.	0	- P P or R		1.13 3.38 6.4	0.98 2.93 6.4
	ZHB-34	20-100. 40-200. 80-240.	0	- P P or R				1.18 3.54 6.4	1.02 3.06 6.4	0.84 2.51 5.85
	ZHB-45	20-100. 40-200. 80-240.	0	- P P or R							0.71 2.12 4.94	0.57 1.71 4.00

Note: 1, P - valve positioner R - pressure relay.
2, the pressure difference is the maximum value of △P under the condition of valve P2=0.
3, the maximum pressure difference of more than 1.0MPa, valve plug, sleeve surface surfacing welding carbide.

Accessories available

Positioner, handwheel mechanism, air filter pressure reducer, etc.

Overall dimensions

Nominal diameter DN	D	L				H				H1
		PN MPa				Room temperature		mesotherm		PN MPa
		0.6	1.6	4.0	6.4	Qi Pass	Qi Off	Qi Off	Qi Off	0.6	1.6	4.0	6.4
25	285	184	197	197	210	410	417	560	567	50	57.5	57.5	67.5
40		222	235	235	251	453	460	623	630	65	72.5	72.5	82.5
50		254	267	267	286	456	463	626	633	70	80	80	87.5
65	360	276	292	292	311	612	619	790	797	80	90	90	100
80		298	317	317	337	624	631	802	809	92.5	97.5	97.5	105
100		352	368	368	394	633	639	810	817	102.5	107.5	115	125
150	470	480	500	500	520	847	854	1075	1082	130	140	150	170
200	470	620	635	650	650	991	998	1211	1218	157.5	167.5	187.5	202.5

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