Description
The APL-200 series limit switch box with position indicator provides open to close switch signaling and continuous visible rotational degree monitoring of quarter turn valves. The rugged and compact design is best suited for small ball valve assemblies, or any place where space is limited.
Features
1. Weather proof IP67(NEMA4,4X)
2. Compact and Beautiful Design
Aluminum die-casting housing and powder coated
3. Bolts on Visual Position Indicator,Secure waterproof
4. "Quick-Set" Cam,Spring loaded splined cam
No need to adjust again after initial setting
Easy setting without tool
5. Multipoint terminal strip
Standard 8 points and enough strips for connection
6. Dual cable entries
2X1/2NPT (Standard)
M20X1.5 , PG13.5, PT1/2,PF1/2(Option)
7. Captive cover bolts
No worry to loose bolts while cover opens
8. Easy mounting
NAMUR standard stainless steel shaft and bracket.
HIC Series pneumatic actuator
Design
HIC Series pneumatic actuators incorporate latest mechanical technology, materials available and our patented technology, through designing, developing, testing and engineering application, we have obtained a high grade product with the characteristics of reliability, high performance, long cycle life, large adjustment, and highest levels of corrosion protection, wide selection of model with easy and economy.
Structure
1. Indicator
Position indicator with NAMUR is convenient for mounting accessories such as limit switch box, positioner and so on.
2. Pinion
The pinion is high-precision and integrative, made from nickel alloy steel, full conform to the latest standards of ISO5211, DIN3337, NAMUR. The dimensions can be customized and the stainless steel is available.
3. Actuator body
According to the different requirements, the extruded aluminum alloy ASTM6005 body can be treated with hard anodized, powder polyester painted (different colors is available such as blue, orange, yellow etc.) or PTFE or nickel plated.
4. End caps
Die-casting aluminum powder polyester painted in different colors, PTFE or nickel plated.
5. Pistons
The twin rack pistons are made from die-casting aluminum treated with hard anodized or made from cast steel with galvanization .Symmetric mounting position, long cycle life and fast operation, reversing rotation by simply inverting the pistons.
6. Travel adjustment
External stroke adjustment screw can adjust í+4ípat the position of 90íp.
7. High performance springs
Preloaded coating springs are made from the high quality material for resistant to corrosion and longer cycle life, which can be demounted safely and conveniently to satisfy different requirements of torque by changing quantity of springs.
8. Bearings & guides
Made from low friction, long-life compound material, avoid the direct contact between metals. The maintenance and replacement are easy and convenient.
9. O-rings
NBR rubber o-rings provide trouble-free operation at standard temperature ranges. For high and low temperature, viton or silicone is used.
Features
í± Extruded aluminum ASTM6005 body with both internal and external corrosion protection having honed cylinder surface for longer life and low coefficient of friction.
í±Dual piston rack and pinion design for compact construction, symmetric mounting position, high-cycle life and fast operation, reverse rotation can be accomplished in the field by simply inverting the pistons.
í±Multiple bearings and guides on racks and pistons, low friction, high cycle life and prevent shaft blowout.
í±Modular preloaded spring cartridge design, with coated spring for simple versatile range, greater safely and corrosion resistance, longer cycle life.
í±Die-casting teeth on piston and pinion for accurate low backlash make rack and pinion engagement with maximum efficiency, having long term corrosion resistance with stainless steel fasteners.
í±Full conformance to the latest specifications:ISO5211, DIN3337 and NAMUR or product interchangeability and easy mounting of solenoids, limit switches and other accessories.
HIC series smart valve positioner contains several kinds of specifications such as HIC11, HIC12, HIC08.It uses two-wire system transmission (The power source 4í½20mA simulating signal simultaneously transmits on two lines ). The psitioner and the actuator constitute a close loop control circuit. In this control circuit, the valve position feedback single as an variable which compared with rated signal in microprocessor and the D-value between them sends out different length of pulse through the delivery outlet of the main control panel to control the output pressure of the I/P change unit, thereby the positioner drive the control valve to act. (Refer to Fig.1)
The pneumatic control valve with HIC smart valve positioner can overcome the friction force and unbalanced force of the valve plug well and enhance reaction speed of the control valve to rapid and precision localization, especially for vibration frequent places. It can replace conventional explosion-proof current-to-pneumatic valve positioner. The purchaser can monitor the valve position information through the feedback current and regulate or set the controlling parameter of the positioner with axial magnet or upper monitor at any moment. The purchasers only need to reset the relative parameter of the valve positioner and avoid changing the control valve because of the control system variation, so it is widely used in automatic control system such as petroleum, chemical industrial, electric power, metallurgy and light industrial, etc.
TECHNICAL PARAMETER
í± Input signalú¦4í½20mA analog signals
í± Input loading voltageú¦7Víó9Vú¿With communicationú¬
í± Air supply pressureú¦0.16MPaí½0.6MPa
í± intrinsic errorú¦í+1.0%
í± Hysteresisú¦1.0%
í± Dead bandú¦0.1%ú¿Min.ú¬
í± Functionú¦Self-diagnostics, configuration, travel characteristic correction, HART communication and so on
í± Air consumptionú¦í_4.0Nl/min
í± Strokeú¦10í½100mmú¿Turn angle 60ípí½90ípú¬
í± Conditions of working atmosphereú¦
a.Ambient temperatureú¦-40í½+80ípCú¼Explosion ¿Cproof typeú¦-40í½+60ípC
b.Ambient humidityú¦5%í½95%ú+
c.Ambient atmosphereú¦86í½106kPaú+
d.There is no corrosive gas in ambient air.
í± Power supplyú¦24V.DC
í± Explosive-proof signú¦Ex dIICT6íóEx iaIICT6
í± Explosive-proof gradeú¦Factory Explosive-proof
í± Enclosure classificationú¦IP65.
