ZJHP Pneumatic Thin Film Low Temperature Regulating ValveDetailed product description：

The ZJHP pneumatic thin film low-temperature regulating valve is a regulating valve used in low-temperature and cryogenic environments. Adopting a long neck valve cover for insulation and equipped with multiple spring actuators, it has the advantages of compact overall structure, light weight, and good stability. The valve body adopts a precision cast angular structure and is made of aluminum alloy, which has good low temperature resistance. The bellows seal ensures that the regulating valve does not leak in low-temperature situations. Therefore, it is widely used in low-temperature and cryogenic applications such as metallurgy, air separation, oxygen production, petroleum, chemical industry, etc. Specially used for precise control of process parameters of low-temperature gases and fluids (such as liquid oxygen, liquid argon, etc.) to maintain given constant values.

Technical parameters of ZJHP pneumatic thin film low-temperature regulating valve

Nominal diameter DN (mm)

twenty

twenty-five

thirty-two

forty

fifty

sixty-five

eighty

one hundred

Valve seat diameter dn (mm)

ten

twelve

fifteen

twenty

Rated flow coefficient (Kv)

straight line

one point eight

two point eight

four point four

six point nine

eleven

seventeen point six

twenty-seven point five

forty-four

sixty-nine

one hundred and ten

one hundred and seventy-six

equal percentage

one point six

two point five

four

six point three

ten

sixteen

twenty-five

forty

sixty-three

one hundred

one hundred and sixty

Rated stroke (mm)

sixteen

twenty-five

forty

Effective area of membrane Ae (cm2)

two hundred and eighty

four hundred

six hundred

Inherent flow characteristics

Straight line, equal percentage

Nominal pressure PN (MPa)

zero point six

Inherent Adjustable Ratio (R)

fifty

Working temperature (℃)

Do：-60~-100，D1：-100~-200 ，D2：-200~-250

Signal range (KPa)

20~100   40~200    20~60   60~100   80~240

Allowable pressure difference (MPa)

Without locator

zero point four seven

zero point three zero

zero point two seven

zero point one eight

zero point one one

Equipped with locator

0.6             0.41

zero point two six one

Allowable leakage amount

1V level V1 level

Gas source pressure (MPa)

0.14~0.40