Pneumatic thin film merging regulating valve-Fornitore globale

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Pneumatic thin film merging regulating valve

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ZMAQ（X）Pneumatic three-way regulating valves come in two forms: diversion type and merging type, which can replace two pneumatic diaphragm single seat regulating valves. The selection of different structural forms for pneumatic diaphragm three-way regulating valves is suitable for situations where a fluid is divided into two streams through a three-way valve or two fluids are combined into one fluid through a three-way valve. And it can control parameters such as fluid flow rate and pressure.

1ZMAQ（X）Overview of Pneumatic Thin Film Three way Regulating Valve

ZMAQ（X）Pneumatic three-way regulating valveThere are two structural forms: merging and diverging. The valve core structure adopts a cylindrical thin-walled window and is guided by the side of the valve core,Three way valves can replace two pneumatic single seat regulating valves and one three-way pipe in certain situations, and are widely used in two-phase regulation of heat exchangers, as well as for simple proportioning regulation. When the nominal diameter and pressure difference are small, the merging valve can be used in diversion situations and can be used interchangeably, but the nominal diameter is greater than80mmAnd pressure. In situations where there is a significant difference in diversion, it cannot be used interchangeably.

The pneumatic three-way regulating valve adopts a cylindrical thin-walled window shaped valve core guidance, which is different from the liner guidance of the plunger shaped valve core. Equipped with multiple spring actuators, it has the advantages of simple structure, light weight, small volume, and easy disassembly and assembly. Widely used for precise control of processes involving gases, liquids, and other media, such as maintaining pressure, flow rate, temperature, and liquid level at given values. Suitable for situations where a fluid is split into two streams through a three-way valve or two fluids are combined into one fluid through a three-way valve.

There are two types of pneumatic three-way regulating valves: three-way merging and three-way splitting. The nominal pressure isPN16、40、64; nominal diameter rangeDN25—300The applicable fluid temperature is determined by-60℃ to+450℃. The leakage standard is level IV. There are two types of flow characteristics: straight lines and parabolas. The pneumatic three-way regulating valve needs to be connected to the air source before it can work. Some construction sites without air sources can choose to use the same type of electric three-way regulating valve instead.

IIZMAQ（X）The significance of the model of pneumatic three-way regulating valve

IIIZMAQ（X）Technical parameters of pneumatic three-way regulating valve

Valve seat diametermm	confluence	25	32	40	50	65	80	100	125	150	200	250	300
	shunt	25	32	40	50	65	80	100	125	150	200	250	300
Rated flow rate coefficientkv	confluence	8.5	13	21	34	52	85	125	210	340	535	800	1260
	shunt	25	32	40	50	65	85	125	210	340	535	800	1260
nominal pressureMPa		1.6 4.0 6.4
Travel itinerarymm		16		25		40			60			100
Traffic characteristics		straight line
Medium temperature ℃		-20～200、-40～+250(Constant temperature type)-40～315(Medium temperature type)
Flange size		Cast iron flange size according toJB79-59The size of the cast steel flange is according toJB79-59
flange type		Flange sealing surface type according toJB77-59Among them, the cast steel flange is smooth and the cast steel flange is concave
body material		HT200,ZG230-450、ZG1Cr18Ni9
Valve core material		1Cr18Ni9
Upper valve cover type		Ordinary type (constant temperature type), hot plate type (medium temperature type)
rangeability		30:1
Air source connector		M16×1.5

4ZMAQ（X）Technical parameters of pneumatic diaphragm three-way valve actuator

Model number	ZHA（B）-3	ZHA（B）-4	ZHA（B）-5	ZHA（B）-6
Effective areacm2	400	630	1000	1600
Travel itinerarymm	16.25	40	60	1000
Spring rangeKPa	20～100；40～200、20～60、60～100、80～240

Accessories available: Positioner handwheel mechanism, air filter, pressure reducer, etc.

5ZMAQ（X）Performance indicators of pneumatic three-way regulating valve

project			Without locator	Equipped with locator
Basic error%			±6	±1.5
Return difference%			5	1.5
Dead zone%			4	0.6
Constant point deviation%	air to close	Starting point	±2.5	±1.5
		End	±6.0
	air to open	Starting point	±6.0
		End	±2.5
Rated travel deviation%			±2.5
Allowable leakage amountL/h			10-3Rated capacity of valve

Note: Generally, a locator should be included

VIZMAQ（X）Parts and materials of pneumatic three-way regulating valve

Part name	material	temperature range
Valve body Upper and lower valve covers	HT200	-20～200℃
	ZG230-450	-40～450℃
	ZG1Cr18Ni9Ti	-250～550℃
Valve core, valve seat, valve stem	1Cr18Ni9	-250～550℃
seal pad	Rubber asbestos board
seal pad	Stainless steel winding pad
filler	PTFE
Upper and lower membrane covers	A3steel plate
diaphragm	35CrMoA
diaphragm	35、A3
Bracket, top plate	HT200
compression spring	60Si2Mn
Wave spun film	5806Adhesive clip480Dnylon66Mesh fabric

7ZMAQ（X）Dimensions of Pneumatic Thin Film Three way Regulating Valve

ZMAQ Pneumatic Thin Film Three way Regulating Valve (Confluence)ZMAXPneumatic diaphragm three-way regulating valve (diversion)

Nominal diameter（mm）		25	32	40	50	65	80	100	125	150	200	250	300
L（mm）	PN1.6MPa	185	200	220	250	275	300	350	410	450	550	635	720
	PN4.0MPa	190	210	230	255	285	310	355	425	460	560	660	740
	PN6.4MPa	200	210	235	265	295	320	370	440	475	570	670	770
H1（mm）	PN1.6MPa	140	150	160	180	200	220	220	256	278	322	540	612
	PN4.0MPa	150	160	170	190	220	232	256	295	313	372	540	612
	PN6.4MPa	160	170	180	200	220	242	266	300	318	382	540	612
H（mm）	Common	435	441	465	480	584	585	575	762	772	792	1203	1234
H（mm）	Heat sink type	565	571	595	610	631	748	738	961	971	989	1525	1554
D（mm）		285				360			470
Weight（KG）		72	75	81	88	135	158	190	262	322	450	550	600

Note: The nominal diameter is less than80The diversion valve is replaced by a merging valve of the same diameter

8ZMAQ（X）Ordering Notice for Pneumatic Thin Film Three way Regulating Valve

If the model has not been selected before placing the order, please provide us with the following parameters as much as possible

1. Pneumatic three-way regulating valve nominal diameter and rated flow coefficientKV，2.Pneumatic three-way regulating valve fluid properties (including nominal pressure, temperature, viscosity, or acidity/alkalinity),3.Flow characteristics of pneumatic three-way regulating valve,4.The switch type of pneumatic three-way regulating valve,5.Pneumatic three-way regulating valve body and valve core materials.

Nominal diameter（mm）		25	32	40	50	65	80	100	125	150	200	250	300
L（mm）	PN1.6MPa	185	200	220	250	275	300	350	410	450	550	635	720
	PN4.0MPa	190	210	230	255	285	310	355	425	460	560	660	740
	PN6.4MPa	200	210	235	265	295	320	370	440	475	570	670	770
H1（mm）	PN1.6MPa	140	150	160	180	200	220	220	256	278	322	540	612
	PN4.0MPa	150	160	170	190	220	232	256	295	313	372	540	612
	PN6.4MPa	160	170	180	200	220	242	266	300	318	382	540	612
H（mm）	Common	435	441	465	480	584	585	575	762	772	792	1203	1234
H（mm）	Heat sink type	565	571	595	610	631	748	738	961	971	989	1525	1554
D（mm）		285				360			470
Weight（KG）		72	75	81	88	135	158	190	262	322	450	550	600

Note: The nominal diameter is less than80The diversion valve is replaced by a merging valve of the same diameter

8ZMAQ（X）Ordering Notice for Pneumatic Thin Film Three way Regulating Valve

If the model has not been selected before placing the order, please provide us with the following parameters as much as possible

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