ZCLT Pneumatic diaphragm regulating valveDetailed product description：

ZCLT Pneumatic Diaphragm Control Valve

Product Features
Excellent combination of Chinese and Western performance, simple operation of pneumatic thin film
Diaphragm Structure Anti toxic and Anti corrosion Imported Diaphragm with Long Lifespan

Product Overview
The pneumatic diaphragm regulating valve consists of a pneumatic diaphragm actuator and a diaphragm valve. The diaphragm valve body flows smoothly, the throttling element is an elastic diaphragm valve, and there is no packing box on the valve cover. Therefore, the flow capacity of the valve is greater than that of a general regulating valve, with no leakage and flow regulation characteristics. It can be used as a shut-off valve within the allowable pressure difference range. The opening and closing of the air are achieved by positive and negative actuators. This valve is suitable for regulating high viscosity fluids, suspended particles, fiber media, toxic media, and corrosive media.

Main technical parameters

Nominal diameter (mm)	Equipped with actuator number	Main technical parameters
		Effective area of thin film (cm2)	Travel distance (mm)	Rated flow coefficient Kv value
fifteen	ZMA(B)-2	two hundred and eighty	ten	eight
twenty				twelve
twenty-five				sixteen
thirty-two	ZMA(B)-3	four hundred	sixteen	twenty-eight
forty				sixty
fifty			twenty-five	sixty-eight
sixty-five	ZMA(B)-4	six hundred and thirty		ninety
eighty			forty	one hundred and sixty
one hundred				three hundred

Main technical performance indicators

project	technical indicators
	Without locator	Equipped with locator
Basic error%	±10	±1.5
Return difference%	eight	one point five
Dead zone%	six	zero point six
Allowable leakage amount	The lining material is polytetrafluoroethylene diaphragm material For: chloroprene rubber, fluororubber	10-4 times the rated capacity of the valve
	The unlined material is, and the diaphragm material is chlorine Nitrile rubber, fluororubber	5 × 10-6 × rated capacity of valve
Deviation of rated flow coefficient Kv%	±20

Allowable pressure difference

Nominal diameter DN (mm)

fifteen

twenty

twenty-five

thirty-two

forty

fifty

sixty-five

eighty

one hundred

Rated flow coefficient Kv

eight

twelve

sixteen

twenty-eight

sixty

sixty-seven

ninety

one hundred and sixty

three hundred

Nominal pressure (MPa)

one

Equipped with actuator model

ZMA(B)-2

ZMA(B)-3

ZMA(B)-4

when closed Allow the most high pressure MPa

signal pressure MPa

P2=0

one hundred and twenty

zero point nine

zero point nine

zero point four zero

zero point four zero

zero point three zero

zero point two

zero point two

zero point one

zero point zero five

one hundred and forty

one

one

zero point eight zero

zero point eight zero

zero point six zero

zero point four

zero point four

zero point two

zero point one zero

P1=P2

one hundred and twenty

zero point four five

zero point four five

zero point two zero

zero point two zero

zero point one five

zero point one

zero point one

zero point zero five

zero point zero two

one hundred and forty

zero point nine

zero point nine

zero point four zero

zero point four zero

zero point three zero

zero point two

zero point two

zero point one

zero point zero five

Can be equipped with accessories
Electrical locators or electric/pneumatic converters, air filter pressure reducers, solenoid valves, handwheel mechanisms, etc.

Overall dimensions

Nominal Diameter DN(mm)	Exterior installation dimensions
	A	H		H1	L
		ZMAT type	ZMBT type
fifteen	two hundred and eighty	four hundred and seventy-nine	five hundred and thirty-two	forty-seven point five	one hundred and forty
twenty		four hundred and seventy-nine	five hundred and thirty-two	fifty-two point five	one hundred and forty-five
twenty-five		four hundred and seventy-nine	five hundred and thirty-two	fifty-seven point five	one hundred and fifty-five
thirty-two	three hundred and twenty-five	five hundred and thirty-eight	six hundred and seventeen	sixty-seven point five	one hundred and sixty-five
forty		five hundred and fifty-three	six hundred and thirty-two	seventy-two point five	one hundred and ninety
fifty		five hundred and sixty-two	six hundred and forty-one	eighty	two hundred and ten
sixty-five	four hundred and ten	seven hundred and fifty-four	eight hundred and fifty-five	ninety	two hundred and forty
eighty		100%	eight hundred and seventy-six	ninety-seven point five	two hundred and seventy
one hundred		eight hundred and fifty-seven	nine hundred and fifty-eight	one hundred and seven point five	three hundred and thirty-five

Note: The flange is selected according to JB78-59 "Cast Iron Flanges" standard
Ordering Instructions
1. Product model and name 2. nominal diameter DN (mm) 3. nominal pressure
4. Flow characteristics 5. Valve body material and sealing requirements 6. Rated flow coefficient
7. Type of medium and temperature range 8. Pressure difference before and after the valve
9. Gas source pressure and control method 10. Other special requirements