Zzyp / N / M self operated pressure regulating È¤Ó®µç¾ºAPP
summary
Zzyp / N / M type self operated single seat / double seat / sleeve pressure regulating È¤Ó®µç¾ºAPP is composed of È¤Ó®µç¾ºAPP body, È¤Ó®µç¾ºAPP seat, È¤Ó®µç¾ºAPP core, balance spring and other components. It is a È¤Ó®µç¾ºAPP that uses the pressure change of the regulated medium without additional energy. According to the mechanical principle, the controlled medium is introduced into the actuator to generate force to push, and the upper and lower position of the È¤Ó®µç¾ºAPP core element is controlled to achieve automatic adjustment, Energy saving products with constant or reduced pressure before or after the È¤Ó®µç¾ºAPP. The biggest characteristic of the product is that it can work in the place without electricity and gas, and the pressure setting value can be adjusted within a certain range during operation. It is widely used in petroleum, chemical, power plant, light industry, printing and dyeing and other industrial equipment for automatic control of gas, liquid, steam and other media pressure.
There are two types of actuators: diaphragm type and piston type; the action forms are: front pressure regulation (k) type (pressure relief and pressure holding type), and back pressure regulation (b) type (pressure reducing and stabilizing type); the temperature isolation condensing tank is attached, which can be used at the temperature ¡Ü 350 ¡æ. According to different working conditions, different È¤Ó®µç¾ºAPP core structure and different actuator can be selected to achieve the best control effect.
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Main technical parameters
Nominal diameter DN (mm) 
twenty 
twentyfive 
thirtytwo 
forty 
fifty 
sixtyfive 
eighty 
one hundred 
one hundred and twentyfive 
one hundred and fifty 
two hundred 
two hundred and fifty 
three hundred 
Rated flow coefficient P type kV 
seven 
ten 
twenty 
thirty 
fortyeight 
seventyfive 
one hundred and twenty 
one hundred and ninety 
three hundred 
four hundred and eighty 
seven hundred and sixty 
one thousand and one hundred 
one thousand seven hundred and fifty 
Rated stroke (mm) 
eight 
ten 
fourteen 
twenty 
twentyfive 
forty 
fifty 


Allowable pressure difference (MPA) 
two point five 
two 
one point six 
one 
Nominal pressure (MPA) 
1.6¡¡4.0¡¡6.4 
Flow characteristics 
Go ahead 
Pressure regulation range (kPa) 
15¡«50¡¢40¡«80¡¢60¡«100¡¢80¡«140¡¢120¡«180¡¢160¡«220¡¢200¡«260¡¢240¡«300¡¢ 280¡«350¡¢330¡«400¡¢380¡«450¡¢430¡«500¡¢480¡«560¡¢540¡«620¡¢600¡«700¡¢680¡«800¡¡780¡«900¡¢880¡«1000¡¢600¡«1500¡¢1000¡«2500 
Adjustment accuracy (%) 
¡À5 
Working temperature (¡æ) 
Liquid ¡Ü 120; gas ¡Ü 80; condenser and heat sink ¡Ü 350 (suitable for high temperature conditions) 
Applicable media 
Hot water, gas, steam, low viscosity medium 
Allowable leakage 
Hard seal (L / h) 
Single seat ¡Ü 104 ¡Á È¤Ó®µç¾ºAPP rated capacity (class IV); double seat, sleeve ¡Ü 5 ¡Á 103 È¤Ó®µç¾ºAPP rated capacity (class II) 
Soft seal (ml / min) 
zero point one five 
zero point three zero 
zero point four five 
zero point six zero 
zero point nine zero 
one point seven 
four 
six point seven five 
eleven point one 
sixteen 
Decompression ratio 
maximum 
ten 
minimum 
one point two five 















 Note: the pressure regulating range can be manufactured according to the user's requirements.
Material of main parts
Material code 
C£¨WCB£© 
P£¨304£© 
R£¨316£© 
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main spare parts 
È¤Ó®µç¾ºAPP body 
WCB£¨ZG230450£© 
ZG1Cr18Ni9Ti£¨304£© 
ZG1Cr18Ni12Mo2Ti£¨316£© 
Valve core and È¤Ó®µç¾ºAPP seat 
1Cr18Ni9Ti£¨304£© 
1Cr18Ni9Ti£¨304£© 
1Cr18Ni12Mo2Ti£¨316£© 
Stem 
1Cr18Ni9Ti 
1Cr18Ni9Ti 
1Cr18Ni12Mo2Ti 
diaphragm 
Butadiene rubber, ethylene propylene rubber, chloroprene rubber, oil resistant rubber 
Membranous cap 
A3, A4 steel coated with tetrafluoroethylene 
filler 
Polytetrafluoroethylene, flexible graphite 
Spring 
60Si2Mn 
Guide sleeve 
HPb591 
External connection dimension (mm)
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Nominal diameter (DN) 
twenty 
twentyfive 
thirtytwo 
forty 
fifty 
sixtyfive 
eighty 
one hundred 
one hundred and twentyfive 
one hundred and fifty 
two hundred 
two hundred and fifty 
three hundred 
L 
PN16¡¢40 
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 
seven hundred and thirty 
eight hundred and fifty 
PN64 
two hundred and thirty 
two hundred and thirty 
two hundred and sixty 
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 


B 
three hundred and eightythree 
five hundred and twelve 
six hundred and three 
eight hundred and sixtytwo 
one thousand and twentythree 
one thousand three hundred and eighty 
one thousand and eight hundred 
two thousand 
two thousand and two hundred 
H 
pressure adjust Range KPa 
15~140 
four hundred and seventyfive 
five hundred and twenty 
five hundred and forty 
seven hundred and ten 
seven hundred and eighty 
eight hundred and forty 
eight hundred and eighty 
nine hundred and fifteen 
nine hundred and forty 
one thousand 
130~300 
four hundred and fiftyfive 
five hundred 
five hundred and twenty 
six hundred and ninety 
seven hundred and sixty 
eight hundred 
eight hundred and seventy 
eight hundred and eighty 
nine hundred 
nine hundred and fifty 
280~500 
four hundred and fifty 
four hundred and ninety 
five hundred and ten 
six hundred and eighty 
seven hundred and fifty 
seven hundred and ninety 
eight hundred and sixty 
eight hundred and seventy 
eight hundred and ninety 
nine hundred and forty 
480~1000 
four hundred and fortyfive 
four hundred and eighty 
six hundred and seventy 
seven hundred and forty 
seven hundred and eighty 
eight hundred and fifty 
eight hundred and sixty 
eight hundred and eighty 
nine hundred and thirty 
600~1500 
four hundred and fortyfive 
five hundred and seventy 
six hundred 
eight hundred and twenty 
eight hundred and ninety 
nine hundred and fifty 
one thousand 
one thousand and one hundred 
one thousand and two hundred 
1000~2500 
four hundred and fortyfive 
five hundred and seventy 
six hundred 
eight hundred and twenty 
eight hundred and ninety 
nine hundred and fifty 
one thousand 
one thousand and one hundred 
one thousand and two hundred 
A 
pressure adjust Range KPa 
15~140 
¦Õ280 
¦Õ308 
130~300 
¦Õ230 
280~1000 
¦Õ176 
¦Õ194 
¦Õ280 
600~2500 
¦Õ85 
¦Õ96 
Connecting thread of pressure pipe 
M16¡Á1.5 

















Note: È¤Ó®µç¾ºAPP body flange and flange end face distance can be manufactured according to user specified standards, such as ANSI, JIS, DIN and other standards.
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