Micro flow pneumatic control valveIt is a small-diameter regulating valve specifically 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.

Pneumatic flow control valveNominal 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

Small flow pneumatic control valve 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. >0.08 requires special ordering. >

Technical performance indicators are required
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
Allowable pressure difference △ P (MPa) 6.45.24.6

Micro flow pneumatic control valve:
(1) ZHA: Positive acting executing agency; ZHB reaction execution mechanism.
(2) If the allowable pressure difference is unclear or the working pressure difference exceeds the list range, please contact us.
External dimensions and weight
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

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