ZMAM pneumatic diaphragm cut-off valveDetailed product description：

Overview

ZMAM pneumatic diaphragm cut-off valve is the execution unit of the pneumatic unit combination instrument. It has the advantages of simple structure, high operating force, small size, light weight, low flow resistance, large valve capacity, good sealing performance, and easy maintenance. And it is widely used in automation control systems in production processes such as petroleum, chemical, metallurgical, power, and textile industries.  

Main Performance and Technical Parameters of ZMAM Pneumatic Thin Film Cut off Valve

Nominal diameter DN (mm)

fifteen

twenty

twenty-five

thirty-two

forty

fifty

sixty-five

eighty

one hundred

one hundred and twenty-five

one hundred and fifty

two hundred

Rated flow coefficient kv

sleeve

eleven

twenty

thirty

forty-eight

seventy-five

one hundred and twenty

one hundred and ninety

three hundred

four hundred and eighty

seven hundred and sixty

Single seat

five

seven

eleven

twenty

thirty

forty-eight

seventy-five

one hundred and twenty

one hundred and ninety

three hundred

four hundred and eighty

seven hundred and sixty

three-way

Rated stroke (mm)

eight

twelve

twenty

twenty-five

forty

fifty

Allowable leakage amount

Hard seal (L/H)

Sleeve 5 × 10-5 valve rated capacity, single seat, tee 1.2 × 10-7 × valve rated capacity

Soft seal (ml/min)

None

Medium temperature ℃

-200~+200, -40~+450

Effective area of membrane (cm2) (membrane type cut-off valve)

one hundred

two hundred

four hundred

six hundred

one thousand

Nominal pressure PN (MPa)

1.6 4.0 6.4

Allowable pressure difference (MPa)

Single seat

six point four

six point four

three point eight

two point five

two point nine

one point eight

two

one point three

zero point eight three

zero point eight

zero point five five

zero point five two

sleeve

six point four

Signal pressure KPa

200 (film sheet)

valve body

Ht200 ZG230-450\ZG1Cr18Ni9Ti

Valve plug sleeve

1Cr18Ni9Ti Cr18Ni12Mo2Ti

Valve core and seat

1Cr18Ni9Ti Cr18Ni12Mo2Ti

Packing material

Polytetrafluoroethylene flexible graphite

Can be equipped with accessories

Air filter pressure reducer, solenoid valve, valve position feedback device, etc

Overall dimensions
Pneumatic diaphragm cut-off valve

Nominal diameter (mm)

fifteen

twenty

twenty-five

thirty-two

forty

fifty

sixty-five

eighty

one hundred

one hundred and twenty-five

one hundred and fifty

two hundred

Rated flow coefficient

five

eight

twelve

seventeen

twenty-nine

forty-three

seventy

one hundred and ten

one hundred and sixty-five

two hundred and seventy-five

four hundred and forty

six hundred and ninety

A(mm)

one hundred and ninety-four

two hundred and thirty

three hundred and six

three hundred and ninety-four

four hundred and ninety-six

L(mm)

PN16

one hundred and fifty

one hundred and sixty

one hundred and eighty

two hundred

two hundred and thirty

two hundred and ninety

three hundred and ten

three hundred and fifty

four hundred

four hundred and eighty

six hundred

PN64

two hundred and thirty

two hundred and sixty

three hundred

three hundred and forty

three hundred and eighty

four hundred and thirty

five hundred

five hundred and fifty

six hundred and fifty

D(mm)

PN16

ninety-five

one hundred and five

one hundred and fifteen

one hundred and forty

one hundred and fifty

one hundred and sixty-five

one hundred and eighty-five

two hundred

two hundred and twenty

two hundred and fifty

two hundred and eighty-five

three hundred and forty

PN64

one hundred and five

one hundred and thirty

one hundred and forty

one hundred and fifty-five

one hundred and seventy

one hundred and eighty

two hundred and five

two hundred and fifteen

two hundred and fifty

two hundred and ninety-five

three hundred and forty-five

four hundred and fifteen

H2(mm)

three hundred and twenty-five

three hundred and forty-six

three hundred and sixty

three hundred and sixty-nine

four hundred and seventy-seven

five hundred and seventeen

five hundred and forty

seven hundred and forty-two

eight hundred and twenty-two

eight hundred and seventy-seven

Pneumatic diaphragm three-way shut-off valve

Nominal diameter (mm)

twenty

twenty-five

thirty-two

forty

fifty

sixty-five

eighty

one hundred

one hundred and twenty-five

one hundred and fifty

two hundred

Rated flow coefficient

eight

twelve

seventeen

twenty-nine

forty-three

seventy

one hundred and ten

one hundred and sixty-five

two hundred and seventy-five

four hundred and forty

six hundred and ninety

H3(mm)

three hundred and ninety-eight

three hundred and ninety-two

four hundred and four

four hundred and twenty-seven

four hundred and forty-three

five hundred and thirty-two

five hundred and fifty-eight

five hundred and seventy-seven

seven hundred and twenty-eight

nine hundred and forty

nine hundred and ninety-five

A(mm)

one hundred and ninety-four

two hundred and thirty

three hundred and six

three hundred and ninety-four

four hundred and ninety-six

L(mm)

PN16

one hundred and fifty

one hundred and sixty

one hundred and eighty

two hundred

two hundred and thirty

two hundred and ninety

three hundred and ten

three hundred and fifty

four hundred

four hundred and eighty

six hundred

PN64

two hundred and thirty

two hundred and sixty

three hundred

three hundred and forty

three hundred and eighty

four hundred and thirty

five hundred

five hundred and fifty

six hundred and fifty

D(mm)

PN16

one hundred and five

one hundred and fifteen

one hundred and forty

one hundred and fifty

one hundred and sixty-five

one hundred and eighty-five

two hundred

two hundred and twenty

two hundred and fifty

two hundred and eighty-five

three hundred and forty

PN64

one hundred and thirty

one hundred and forty

one hundred and fifty-five

one hundred and seventy

one hundred and eighty

two hundred and five

two hundred and fifteen

two hundred and fifty

two hundred and ninety-five

three hundred and forty-five

four hundred and fifteen