ZMABP,ZMABN Pneumatic thin film straight through dual seat regulating valveDetailed product description：

ZMABP and ZMABN pneumatic thin film straight through double seat regulating valves adopt a dual number guiding structure and are equipped with a multi spring actuator. It has the advantages of compact structure, light weight, sensitive action, large valve capacity, precise flow characteristics, and easy disassembly and assembly. Widely used for precise control of process parameters such as pressure, flow rate, temperature, and liquid level in media such as gases, liquids, and steam to maintain them at given values. Especially suitable for media with large pressure differences, large allowable leaks, and not very clean environments.

There are various types of ZMABP (N) pneumatic thin film straight through double seat regulating valves, including standard type, corrugated pipe sealing type, jacket insulation type, etc. The nominal pressure rating of the product includes PN16, 40, and 64; The valve body diameter range is DN25-400. The applicable fluid temperature ranges from -250 ℃ to+560 ℃ in various grades. The leakage standards are Level III and Level IV. The flow characteristics are linear or percentage. A variety of varieties and specifications are available for selection.

structural characteristics
Valve body and cover: HT200, ZG230-450, ZG1Cr18Ni9Ti
Valve core and seat: 1Cr18Ni9Ti, Si Ti Lai alloy overlay welding
Packing: PTFE, flexible graphite, stainless steel corrugated pipe
Gasket: Rubber asbestos board, 1Cr18Ni9Ti, asbestos wrapped gasket
Membrane cover: A3
Corrugated film: Nitrile rubber clip reinforced polyester fabric
Spring: 60Si2Mn
Valve stem and push rod: 2Cr13, 1Cr18Ni9Ti
Lining: 2Cr13
Soft seal valve core: reinforced polytetrafluoroethylene

Technical parameters of ZMABP (N) pneumatic thin film straight through double seat regulating valve

Nominal diameter DN (mm)

twenty-five

thirty-two

forty

fifty

sixty-five

eighty

one hundred

one hundred and twenty-five

one hundred and fifty

two hundred

two hundred and fifty

three hundred

four hundred

Rated flow coefficient Kv

single-seat

eight

twelve

twenty

thirty-two

fifty

eighty

one hundred and twenty

two hundred

two hundred and eighty

four hundred and fifty

seven hundred

one thousand and one hundred

Double seat

ten

sixteen

twenty-five

forty

sixty-three

one hundred

one hundred and sixty

two hundred and fifty

four hundred

six hundred and thirty

one thousand

one thousand and six hundred

two thousand and seven hundred

Rated travel L (mm)

sixteen

twenty-five

forty

sixty

one hundred

Effective area of membrane Ae (cm2)

two hundred and eighty

four hundred

six hundred

one thousand

one thousand and six hundred

Nominal pressure PN (MPa)

1.6, 4.0, 6.4

Inherent flow characteristics

Straight line, equal percentage

Inherent adjustable ratio R

50：1

Signal range Pr (KPa)

20-200, 40-200, 20-60, 60-100, 80-240

Gas source pressure Ps (MPa)

0.14～0.4

Allowable leakage amount

Grade IV (single seat), Grade III (double seat)

Working temperature t (℃)

Room temperature type

-20-200, -40 to 250, -60 to 250

heat dissipation type

-40-450, -60-450

high-temperature type

450~650

Low temperature type

-60-100, -100 to -200, -200 to -250