ZJHY Micro flow pneumatic control valveDetailed product description：

The ZJHY pneumatic thin film precision small flow regulating valve is a small caliber regulating valve specially developed for small flow regulation. The valve body adopts threaded connection, which has the advantages of small volume, light weight, easy installation and maintenance. When adjusting unclean media, attention should be paid to preventing blockages due to the small throttling gap. It is suitable for regulating the injection flow rate of liquid, steam and other media.

Nominal diameter (mm) G1/2 "G3/4"
Valve seat diameter (mm) 1.5 * 3456789
Flow coefficient Kv0.00250.080.120.200.320.500.801.00
Adjustable range 30:1
Nominal pressure standard product 1.6 4.0 6.4, 10MPa
Valve core form: single seat plunger type valve core
Flow characteristic straight line
Function form: Air open type, Air closed type
Working temperature: ordinary type -40~230 ℃, heat sink type 230~450 ℃, special order 450~600 ℃
The flange standard complies with JB78-59 and JB79-59 standards, and can be ordered and produced according to JB/79.1-94, JB/79.2-94, ANSI, JIS, DIN and other standards
ZHA/B type multi spring pneumatic thin film actuator
Can be equipped with accessory locators, solenoid valves, air filter pressure reducing valves, limit switches, valve position feedback devices, emergency devices, handwheel mechanisms, etc
Note: Products with working temperature, nominal pressure, and nominal diameter exceeding the listed range can be resolved through negotiation with our company. Special orders are required if the order quantity coefficient is less than 0.08.

Technical performance indicators of ZJHY small flow pneumatic control valve

Leakage rate: Grade VI, less than 10-4 of rated flow rate
Reply: Not included,
Main component materials
Valve body material: 1G1Cr18Ni9Ti, 316, 316L, etc
Core material: 1Cr18Ni9Ti, 316, 316L, etc
Packing material: polytetrafluoroethylene, flexible graphite
Membrane material: Nitrile rubber with nylon cloth clip

Executing Agency ZHA (B) -11
Travel (mm) 10
Effective area (cm3) 200
Gas source interface size M16 × 1.5
Nominal diameter (mm) G1/2 "G3/4"
Valve seat diameter (mm) 1.53456789
Allowable pressure difference △ P (MPa) 6.45.24.6
Note: (1) ZHA: Positive acting actuator; ZHB reaction execution mechanism.
(2) If the allowable pressure difference is unclear or the working pressure difference exceeds the list range, please contact us.

Dimensions and weight of ZJHY small flow pneumatic control valve
Public diameter (mm) G1/2 "G3/4"
Connection length L (mm) 9292
Height H (mm) 370370
H1(mm)3030
Actuator width D (mm) 230230
Weight (KG) 1818