ZJHY Pneumatic small flow control valve

Valve seat diameter(dn)

1.5

2

3

4

5

6

7

8

9

10

11

12

15

Rated flow coefficient KV

0.025

0.05

0.08

0.12

0.20

0.32

0.50

0.80

1.00

1.40

1.55

1.85

2.23

Allowable pressure 
difference(MPa)

≤Nominal pressure

Nominal pressure(MPa)

1.6、2.5、4.0、6.4、10.0、16.0、25.0、32.0

With actuator type

ZHA/B-11

Rated route(mm)

8

10

12

Valve cover form

standard type(-17～+250℃)、High temperature type(+250～+450℃)、Low temperature type(-40～-196℃)、Bellows sealed type(-40～+350℃)

Capping form

Bolt compression type

Seal packing

V type PTFE packing、V type flexible graphite filler

fValve body material

stainless steel（CF8、CF8M、CF3、CF3M、 Biphase stainless steel2520）

Flow characteristics

Linear, equal percentage

valve core material

stainless steel (304、316、316L)

Actuator model

ZHA/B-11

Effective area(cm2)

200

route (mm)

10、16

Spring range(KPa)

20～100（standard）、20-60、60-100、40-200、80-240

Diaphragm material

Nitrile rubber clip nylon cloth, ethylene propylene rubber clip nylon cloth

Air supply pressure

140～400KPa

Air interface

RC1/4"

Ambient temperature

-30～+70℃

equipped with 
accessories

Locator, air filter pressure reducer, position valve, route switch, valve positioner, handwheel mechanism, etc.

Form of action

Air-to-close (B)—Valve open (FO) when deaeration; Air-opening (K)—Valve off (FC) when deaeration