Pneumatic angle control valve

The angle control valve adopts the top guide structure to realize the adjustment to pressure, flow, temperature and liquid level. It is small size, light weight, low leakage, simple flow route, and low resistance, it can service liquid fluid with high pressure difference / high viscosity / suspended particles. Be convenient to self-cleaning and water cleaning. The angle control valve is generally used in condition of bottom-in & side-out.

Valve body structure

1-Body,   2- Seat,   3-Gasket,   4-Valve plug,   5-Bushing   6- Gasket,   7-Bonnet,   8- Packing
9- Packing bushing,   10- Gland,   11-Stem,   12-Hex nut,  13-Stud
14- Hex nut,   15-Stud

Main technical data



Angle globe valve

Size (DN)

DN20 ~ DN200 mm

Pressure rating

PN16 – PN100 / CL150LB, CL300LB, CL600LB,

Flange standard

JB/T79.1-94、79.2-94、ANSI B16.5

Body material


Bonnet structure


Standard type: (-5 ~ 230 ℃), Heat dissipation type:(-45 ~ 230 ℃),

Low temperature type:(-196 ~ -45 ℃),Bellow sealed type

Bonnet type



V-type PTFE / flexible graphite

Trim structure

Single-seat with sleeve / plunger disc

Trim material

Seat & Plug: SS304/SS316 surfacing welding Stellite, 

Shaft: SS304/SS316

Flow characteristic

Equal percentage / Linear

Note: performance listed base on the packing material in PTFE



Flow characteristic

Linear,  percentage

Allowable range

50:1 ( CV<6.3 30:1)

Rated Cv value

Percentage CV1.6 ~ 630, Linear CV1.8 ~ 690

Leakage grade

Metal seal: IV grade ( 0.01% rated capacity )

Soft seal: VI grade (leakage standard: GB/T 4213)

Intrinsic error

±1.5 %

Return difference

≤1.5 %

Dead zone

≤0.6 %

Difference from beginning to end

±2.5 %

Rated travel difference

≤2.5 %

Note: performance listed base on the packing material in PTFE




Pneumatic diaphragm actuator (multi-spring type)


Regulating, ON-OFF

Air supply pressure

Air supply pressure ( Spring range)

140 ( 20 ~ 100) Kpa G

240 ( 40 ~ 200) Kpa G

280 ( 80 ~ 240) Kpa G

Input signal


Action to close

pressure increase, valve stem descend, valve close

Action to open

pressure increase, valve stem ascend, valve open


≤1 %FS ( with positioner )

Linear type

≤2 %FS ( with positioner )

Environmental temperature

-10℃ ~ +70℃


E/P, P/P valve positioner, filter regulator, valve converter, solenoid valve,

Limited switch.