Pneu cov.cdr:CorelDRAWpromagltd.com/s/as35_50.pdf · 2009-07-10 · SUPPLYPRESSURE FLOWRATE...
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The AS-35 and AS-50 are pneumatic proximity switches. These Switches are activated by opposing magnetic fields of the switch, and a PM-26 Float. They provide very reliable point switching in level applications to activate alarms and to open and close valves with pneumatic actuators. See Figure 2 for examples of typical applications use. No contact with process fluids No valves or process piping required No seals, diaphragms, springs, or torque tubes required No cleaning required Trip point easily adjustable Vibration resistant Non-corrosive housing Field reversible action Low air or gas consumption. Unique Magnetic coupling concept Ease of Mounting and adjustment - no special tools required Positive action Integral high volume, rapid response relay Hinged cover for quick access The standard housing is a NEMA 4, stainless steel enclosure. A small screwdriver or wrench are the only tools necessary. Two stainless steel clamps pass through the mounting slots attached to the switch housing then around the PM-26 chamber. The switch can be repositioned easily by loosening the stainless clamp then sliding the switch along the chamber to the required position. Two switches can be mounted to trip at the same point or at two different points separated by less than the length of a switch. 1) Spindle - Magnet assembly. 2) Flapper - Nozzle assembly. 3) Stainless Steel or Aluminum Relay assembly. The AS-35, and AS-50 consists of the following AS-50 The Spindle will rotate when the magnetic field of the float passes by the magnetic field of the Spindle Magnet. This 35 rotation will, 0 Press the Flapper against the Nozzle or Allow the Flapper to move away from the When the Flapper presses against the Nozzle it will cause a back pressure to develop on the pneumatic relay. This back pressure moves the actuation diaphragm to a position that allows the supply air or gas to pass through the relay, and on to the pneumatic instrument. - [ EXAMPLE Valve Actuator] When the Flapper moves away from the Nozzle the process is reversed. The Supply air or gas will be blocked and the pneumatic instrument will be vented to atmosphere. (Commonly called Block and Bleed). See Figure 1. The following adjustments to the switch are easily accomplished. 1) Air On - Air Off 2) Trip Point Location
Transcript of Pneu cov.cdr:CorelDRAWpromagltd.com/s/as35_50.pdf · 2009-07-10 · SUPPLYPRESSURE FLOWRATE...
The AS-35 and AS-50 are pneumatic proximityswitches. These Switches are activated by opposingmagnetic fields of the switch, and a PM-26 Float.
They provide very reliable point switching in levelapplications to activate alarms and to open and closevalves with pneumatic actuators. See Figure 2 forexamples of typical applications use.
No contact with process fluids
No valves or process piping required
No seals, diaphragms, springs, or torquetubes required
No cleaning required
Trip point easily adjustable
Vibration resistant
Non-corrosive housing
Field reversible action
Low air or gas consumption.
Unique Magnetic coupling concept
Ease of Mounting and adjustment - no specialtools required
Positive action
Integral high volume, rapid response relay
Hinged cover for quick access
The standard housing is a NEMA 4, stainlesssteel enclosure.
A small screwdriver or wrench are the only toolsnecessary. Two stainless steel clamps pass through themounting slots attached to the switch housing thenaround the PM-26 chamber. The switch can berepositioned easily by loosening the stainless clampthen sliding the switch along the chamber to therequired position. Two switches can be mounted to tripat the same point or at two different points separated byless than the length of a switch.
1) Spindle - Magnet assembly.2) Flapper - Nozzle assembly.3) Stainless Steel or Aluminum Relay assembly.
The AS-35, and AS-50 consists of the following
AS-50
The Spindle will rotate when the magnetic field of thefloat passes by the magnetic field of the SpindleMagnet. This 35 rotation will,0
Press the Flapper against the Nozzle or
Allow the Flapper to move away from the
When the Flapper presses against the Nozzle it willcause a back pressure to develop on the pneumaticrelay. This back pressure moves the actuationdiaphragm to a position that allows the supply air or gasto pass through the relay, and on to the pneumaticinstrument. - [ EXAMPLE Valve Actuator] When theFlapper moves away from the Nozzle the process isreversed. The Supply air or gas will be blocked and thepneumatic instrument will be vented to atmosphere.(Commonly called Block and Bleed). See Figure 1.
The following adjustments to the switch are easilyaccomplished.1) Air On - Air Off2) Trip Point Location
SUPPLY PRESSURE
FLOW RATE
CONNECTIONS
NOTE :
15 - 100 PSIG
22 Cubic Feet per Minute @100 PSIG
1/8" FNPT
Supply must beair or gas.
CLEAN, FILTERED
AS-35 Aluminum RelayAS-50 All SS Relay
RA Air ON, Rising LevelRB Air OFF, Rising LevelFA Air ON, Falling LevelFB Air OFF, Falling Level
B BrassS Stainless SteelX No Fittings
4 1/4" Tubing8 3/8" TubingX No Fitting
S Straight FittingE 90 Degree ElbowX No Fitting
F FilterX No Filter
(HIGHLY RECOMMENDED)
I InletO OutletB Both Inlet and OutletX No Pressure Gauges
P Hi Temp Pad > 200 FX No Pad < 200 F
0
0
AS-50 E X I XRA B 4 Valve or otherpneumaticinstrument
Valve or otherpneumaticinstrument
SupplyAir
SupplyAir
VentVent
OIL
BRINE
OIL / BRINE IN
OIL OUT
BRINE OUT
15-100PSIGSUPPLY
20-100PSIGSUPPLY
20-100PSIGSUPPLY
SUPPLY(100 PSIG MAX)
15-100PSIGSUPPLY
AIR TO OPEN
AIR TO CLOSE
AS-50 SWITCHAS-50
SWITCH
VENT
FLUID IN
SPRINGRETURNVALVE
LR-35 LATCHINGPNEUMATIC RELAY
W/ MANUAL RESETS
AS-50SWITCH
FLUID OUT
AS-50 SWITCH
DOUBLE ACTINGVALVE
TYPICAL GAP CONTROL APPLICATIONS
FLUID
PNEUMATIC SWITCH OPERATION
OIL FIELD SEPARATOR ADJUSTABLE ON / OFF LEVEL CONTROL
Describes the actionwhen the float passes bythe switch
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