ZZC, ZZV Self operated differential (micro) pressure regulating valveDetailed product description：

ZZC and ZZV self operated differential (micro) pressure regulating valves are actuator products that do not require external energy sources. Can be used for nominal pressures PN01 and PN10. Differential (micro) pressure can be adjusted in sections. From 50mm. w. c to 0.1MPa. It has a wide range of applications and can be used in industrial combustion furnace systems to control the flow ratio of two materials, such as gas and air, to achieve ideal combustion. Used for the sealing oil system of hydrogen cooled generator sets, controlling the pressure difference between the sealing oil and hydrogen gas to ensure reliable sealing. When the low-pressure end of the differential pressure valve is open to the atmosphere, it is called a micro pressure valve (negative pressure, end pressure, and zero force of the differential pressure valve).

Main features of ZZC and ZZV self operated differential (micro) pressure regulating valves:
Adjust the set value without stopping production;
No packing, there is no friction when the valve stem moves up and down, and the upper seal is absolutely reliable;
The sensitive components of the actuator are extremely sensitive, and even tiny pressure changes can be detected;
The valve body is in a four-way form, and one type of valve body can be used for both K and B surfaces.

Main component materials of ZZC and ZZV self operated differential (micro) pressure regulating valves:

Part Name	Material Science
Valve body	HT200、ZG230-450、 ZG1Cr18Ni9、ZGCr18Ni12Mo2
Valve core	Cr18Ni12Mo2Ti、1Cr18Ni9Ti
Valve seat	Cr18Ni12Mo2Ti、1Cr18Ni9Ti
Spring	60Si2Mn、1Cr18Ni9Ti、50CrvA
Corrugated pipe	1Cr18Ni9Ti
Diaphragm film	Nitrile, oil resistant rubber, fluororubber

Note: The above are commonly used materials, and the specific grades are subject to the order contract.

Main technical parameters and performance indicators of ZZC and ZZV self operated differential (micro) pressure regulating valves:

Nominal diameter DN (mm)		twenty	twenty-five	thirty-two	forty	fifty	sixty-five	eighty	one hundred
rated flow Coefficient Kv	ZZCP/ZZVP	eight	eleven	twenty	thirty-two	fifty	eighty	one hundred	one hundred and sixty
	ZZCN					fifty-three	eighty-three
Rated travel L (mm)		six	eight		ten		fifteen		twenty
Nominal pressure PN (MPa)		0.10         1.0
Differential pressure regulation range (KPa)		0.5～5.5  5～10  9～14  13～19  18～24  22～28  26～33  31～38 36～44    42～51    49～58    56～66    64～78   76～90   88～100
Medium temperature (℃)		≤80
Adjustment accuracy (%)		≤10
Allow leakage Quantity (l/h)	ZZCP/ZZVP	10-4 x rated capacity of valve (Class IV)
	ZZCN	5 × 10-3 × rated capacity of valve (Class II)

Note: 1 The nominal pressure of ZZCP/ZZVP is 0.10MPa, and ZZCN is 1.0MPa. The differential pressure adjustment range of ZZCN is 36-44... 88-100KPa

Main technical parameters and performance indicators of ZZC and ZZV self operated differential (micro) pressure regulating valves: Unit: mm

Nominal diameter (DN)		twenty	twenty-five	thirty-two	forty	fifty	sixty-five	eighty	one hundred
A		three hundred and eight	three hundred and ninety-four	three hundred and eight	three hundred and ninety-four	three hundred and eight	three hundred and ninety-four	three hundred and ninety-four	three hundred and ninety-four
H	ZZCP/ZZVP	three hundred and seventy-six	four hundred and sixty-five	three hundred and sixty-five	four hundred and forty-five	four hundred and forty-five	four hundred and ninety	four hundred and ninety	five hundred and ten
	ZZCN					five hundred and thirty-six	five hundred and thirty-six	five hundred and seventy	five hundred and ninety
L	ZZCP/ZZVP	one hundred and fifty	one hundred and sixty	one hundred and eighty	twenty	two hundred and thirty	two hundred and ninety	three hundred and ten	three hundred and fifty
	ZZCN					two hundred and twenty-two	two hundred and twenty-two	three hundred and ten	three hundred and fifty
Weight (kg)		twelve	thirteen	fifteen	seventeen	twenty	twenty-eight	thirty-eight	forty-three
Pressure pipe threaded joint		M16×1.5