Zzvn Self Operated Pressure Differential Regulating Valve

• Customization: Available
• Certification: ISO, CE
• Temperature: Ordinary Temperature
• Model NO.: GAZZVN
• Connection: Flange
• Valve Seat: Single-Seat
• Structure: Spring Diaphragm
• Material: Cast Steel,Stainless Steel
• Transport Package: Plywood Case
• Trademark: GOOLE, OEM
• Origin: China(Mainland)
• HS Code: 8481804090

Product Description

ZZVN Self Operated Pressure Differential Regulating Valve

Product Description

Brief Introduction. 

ZZCP Regulating Valve is a self operated regulating valve,its special advantage is that there is no need for any external power source, it can use the medium's flow force to realize the function of pressure regulating automatically when the medium flow through the actuator,it is mainly used for burning furnace system to control the mixing of coal gas and air,or oil sealing system in Hydrogen cooled generator set to control the pressure differential between sealing oil and hydrogen to realize reliable sealing,besides,pump bypass and other systems can also use it,compared with other regulating valves,it has following features:
 
1.Adjust the preset value but no need to stop production.
2.Packing is not installed in the valve,so there's friction when the stem move up and down,top sealing performance is very good.
3.The elements of actuator are high-sensitive,even micro pressure change can be sensed.

Application

Field of Application. 

Product Name: ZZCP Self Operated Pressure Differential Regulating Valve.
Pressure Rating: 0.1 Mpa.
Nominal Diameter: DN20-100 mm.
Body Material: Steel WCB.
Standard flanges: DIN, ANSI, JIS.

Product Details

Material of Main Component. 

Part Name	Material
Body	HT200,ZG230~450 ZG1Cr18Ni9Ti,ZGCr18Ni12M02Ti
Plug	Cr18Ni12M02Ti 1Cr18Ni9Ti
Seat	Cr18Ni12M02Ti 1Cr18Ni9Ti
Spring	60Si2Mn 1Cr18Ni9Ti 50CrvA
Membrane	NBR,Oil Resistant Rubber,Fluoro Rubber

 
Main External Dimensions.
 

 

 

Nominal Diameter		20	25	32	40	50	65	80	100	150
A		308	394	308	394	308	394	394	394	394
ZZCP	H	378	465	365	445	455	490	490	510	─
	L	150	160	180	200	230 /222	290 /220	310	350	─
Weight(KG)		12	13	15	17	20	28	38	45	56

Product Parameters

Main Technical Parameters and Indexes of Performance.

Nominal Pressure	0.1 Mpa.
Nominal Diameter	20	25	32	40	50	65	80	100
Kv	8	11	20	32	50	80	100	160
Travel	6	8		10		15		20
Pressure Regulating Range (Mpa)	0.5~5.5,5~10,9~14,13~19 18~24,22~28,26~33,31~38
Applicable Temp.	≤ 80
Regulating Precision	≤ 10%
Allowable Leakage	10 -3 x Rated Value(IV Class)

 

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