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AK-42309-500

Positive Positioning Relay

Model Chart

Specifications

Positive positioner pneumatic relay is used to

accurately position an actuator stroke with respect

to signal pressure from the controller. It can also

be used to change the effective spring range of an

actuator and increase the capacity of a controller.

Features:

For accurate positioning of valve and damper actuators, this

positioner utilizes a pilot-operated, relay-type

position-sensing mechanism, much more sensitive to

actuator position changes than some competitive

“force-balance” positioners.

Model No. Description

AK-42309-500

AK-42309-500 positive positioner cannot be used with M556, M572, M573, M574, and MK-12000 Series actuators. Use N800-0555 positioner with M556,

M573, and M574.

Positive Positioning Relay with Mounting Linkage.

Action Direct (increase in output pressure to actuator with an increase in pilot pressure from controller).

Pilot input 0 to main air pressure, psig.

Output 0 to main air pressure, psig.

Construction

Housing Polysulfone.

Diaphragm Neoprene.

Start point Adjustable 1 to 12 psig (7 to 83 kPa).

Span Adjustable 2 to 13 psi (14 to 90 kPa); factory set at 5 psig.

Stroke Adjustable 2 to 13 psi (14 to 90 kPa); factory set at 5 psig with feedback spring for 7/16 to 5 in. stroke.

Supply air pressure Clean, oil free, dry air required (refer. EN-123).

Maximum 30 psig (207 kPa).

Nominal supply 15 to 20 psig (103 to 138 kPa).

Environment

Ambient temperature limits

Shipping: -40 to 160qF (-40 to 71qC).

Operating: 32 to 140qF (0 to 60qC).

Humidity 5 to 95% R.H., non-condensing.

Locations NEMA Type 1.

Air connection code Refer to Figure 1.

Air connections

“M” and “B” Barbed for 1/4 in. O.D. plastic tubing.

“P” Dual-contoured for 1/4 in. O.D. and 5/32 in. O.D. tubing.

Air consumption for sizing air

compressor

19 scim(5.2 mL/s) at 20 psig (138 kPa) supply.

Air capacity for sizing air mains 20 scim (5.5 mL/s).

Flow capacity 860 scim (235 mL/s) at 20 psig (138 kPa) supply.

Mounting linkage

All necessary linkage provided to assemble AK-42309-500 to MK-2690-0-0-1 actuator and the

following actuator series; MK-3000, MK-4400, MK-4600-0-01, MK-4700, MK-4800, MK-6600,

MK-6800, MK-6900, MK-7100, MK-8800 and MK-8900.

Dimensions 2-1/2 H x 4-1/2 W x 3 D in. (64 x 114 x 76 mm).

42309