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Pipeline Pneumatic Control Valve

Pipeline Pneumatic Control Valve

Integrated design of executive organ and valve
Capable of being equipped with valve positioner to form new-style pneumatic regulating valve
Capable of being equipped with limit switch to form two-position regulating valve
Compact design, exquisite profile, light weight

ZSGPT series pipeline pneumatic control valve has been widely applied to production control systems of industrial unit like petroleum, chemicals, metallurgy, light industry and environmental protection for its exquisite profile, precise adjusting performance and high-efficiency circulation design.

ZSGPT series pipeline pneumatic is the ingenious conbination of control system and valve, which enables it with small size, compact structure and convenient repair. Its innocative design
ensures its smooth flow channel and tiny flow resistance coefficient, so as to guarantee the excellent performance of it in fluid control fielf and acquire the best control effect.

Executive standard
Connection size of pneumatic executive organ in accordance with ISO5211
Design standard:GB/T4213
Flange connection structure length: IEC 534-3
Flange connection size standard: BG/T9113
Testing, inspecting standard: GB/T4213

Technical Index

Main technical performance index

Intrinsic error :±5%(with positioner)

Hysteresis error:±5%(with positioner)

Dead band:3%, 0.4%(with positioner)

Leakage:1×10-4 rated flow

Rated flow coefficient:±10%

Inherent flow characteristics:slop coefficient ±30%

Inherent flow characteristics curve(Kv)

Remarks:
1.Default goods supply is as per the MAX. Kv value of nominal diameter. For smaller Kv

value, please state clearly in contract.
2.If the working temperature exceeds the range, please state the requriement clearly.
3.Please provide the physical performance of medium or its definite material.
4.Connection flange size can be customized.

Main technical parameters

Dominal diameter DN(mm)		20	25	40	50	80	100	150	200
Rated flow coefficient Kv	straight line	1.8~6.9	6.9~11	17.6~27.5	27.5~44	69~110	110~176	275~440	440~690
	Fast open	0.3s		（switching time）0.4s				0.6s	0.7s
Rated travel(mm)		10		20				40	50
gas source(Mpa)		0.25~0.4
Nominal pressure(Mpa)		1.0,1.6
Inherent flow characteristics		Beeline,fast open

Principle

Use the actuator to output signals to the pneumatic control system, control the gas to control the movement position of the valve core by pushing the movement of the valve core.At the same time, the spool feeds back the travel to the actuator through the transmission shaft, which achieves the effect of accurate regulation of flow.