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Standard Temperature Diaphragm Valve Electropneumatic Positioner

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Address: Unit E, NO.11 XiYuan Eight Road, XiHu District, HangZhou City, Zhejiang Province, China.

Contact name:Monica Yu

POWERFLOW CONTROL CO,. LTD.

Standard Temperature Diaphragm Valve Electropneumatic Positioner

Country/Region	china
City & Province	hangzhou zhejiang
Categories	Valves

Product Details

YT1000 Series Diaphragm Valve Electro-pneumatic Positioner for Standard Temperature

1. Product Description

YT-1000 series electro-pneumatic valve positioner is a device that receives DC current signal 4-20mA from the controller or the control system,and the precisely controls valve opening through pneumatic actuator.

2.Technical Datas

Enclosure Material	Aluminum Diecasting
Set-point Signal	4-20mA DC
Input Resistance	250Ω
Stroke Control Range	10-150 mm; 0-90°
Explosion Proof	Ex d II BT6; Ex d II CT6; Ex ia II CT6
Ambient Temperature	-20 - 70℃ (Standard); -40 - 70℃ (Low Temp Type); -20 - 120℃ (High Temp Type)
Explosion Proof Temperature	-20 - 60℃
Hysteresis	± 1.0% F.S
Sensitivity	± 0.2% F.S
Repeatability	± 0.5% F.S
Flow Capacity	80LPM (Sup =0.14MPa)
Protection Class	IP65
Weight	2.7KG

3. Features

No resonance in 5-200Hz
Simple Reverse/Direct Action change
Optional orifice
Simple part change can set 1/2 split range

4. Action principle

YT-1000L TYPE

When the set-point signal input, the torque motor (1) generate a electro-magnetic field, the baffle (2) received and leave away from the nozzle(3). The air in the pilot valve (4) will be eliminated, and push the valve core (8), Air intake to the actuator (11) through the base (7). With pressure increase, the push rod (12) go down, the feedback stem (13) pull the spring (16). Until the force between the spring (16)and the torque motor (1) keeps balance, the baffle (2) go back. Then the valve core (8) gag the base (7)again, finally the positioner keep stable.

5. Product type selection