©Johnstone Supply eCatalog 216

COMMERCIAL CONTROLS Pneumatics

Pneumatic/Electric Switches • Converts pneumatic to electrical SPDT switching action • Neoprene diaphragm element • Barb protected by open cage • All ferrous parts plated to prevent corrosion

Specifications: • Differential: 2 PSI • Maximum supply air: 30 PSI • Electrical ratings: 1 HP @ 125VAC, 25A resistive @ 125VAC, 750VA pilot duty

A

B

Each

Fig. Order # Mfg. #

Temp. Range

Dimensions

Switching Pressure

Mounting Surface

L38-520 P658A1013 -20°F to +140°F L39-881 P658B1012 -20°F to +160°F

A B

3-3/8" W x 5-3/8" H x 2" D

10 PSI

405.00 285.00

3-1/4" W x 3-7/16" H x 1-3/4" D 10 PSI

Panel

Diverting Switches • Manually diverts, blocks or bleeds air in pneumatic air lines • Mounts on a panel up to 7/16" thick • Includes mounting nuts, knobs and scaleplate

Specifications: • Operating range: 0 to 18 PSI • Maximum supply air: 30 PSI • Air capacity: 0.175 SCFM • Dimensions: 1-9/16" W x 1-5/8" H x 3" D

Each

Order # Mfg. #

Description

L38-532

SP470A1000

Two-Position Switch Three-Position Switch

365.00 415.00

L39-895 SP470A1018

Position Switch • Three-port pneumatic manual or minimum switch with pilot bleed • Two breakaway stops on the knob allow 188°, 244° or 300° rotation • Wall or panel mounting • Complete with knob, scaleplate, locknuts and mounting bracket

Specifications: • Main operating pressure: 18 PSI • Setpoint span: 10, 13, or 16 PSI • Branch and pilot range: 3 to 15 PSI • Maximum supply air: 25 PSI • Air capacity: 0.021 SCFM below minimum position

• Air consumption: 0.022 SCFM • Dimensions: 1-1/2" D x 3" L

Each

Order # Mfg. #

L38-533 SP970A1005

349.00

Electronic-Pneumatic Transducers • Converts a proportional electric output signal from a controller into a direct-acting (DA), proportional pneumatic signal • Requires an external 24V power supply

• Nominal high end pressure: 16 PSI with 18 PSI minimum pressure at 12VDC or 16 PSI at 11VDC • Nominal low end pressure: 0.5 PSI at 0VDC • Maximum supply air: 30 PSI • Air capacity: 0.45 SCFM • Air consumption: 0.025 SCFM • Dimensions: 2-7/16" W x 3-5/8" H x 2" D

• Factory calibrated • Dual barb fittings • Screw mounting or snap rail Specifications: • Power consumption: 1.7VA

A

B

C

D

Each

Fig. Order # Mfg. #

Electrical Conn.

Input Signal

Includes

L40-038 L40-039 L38-525

A B C

RP7517A1009 30" Lead Wire

2 to 10VDC @ 0.1 mA Max 2 to 10VDC @ 0.1 mA Max

No Cover With Cover No Cover With Cover

1845.00 1299.00 1545.00 1499.00

RP7517A1017 Screw Terminals (for 14 to 22 ga. wire)

RP7517B1016 30" Lead Wire

2 to 10VDC 2 to 10VDC

D L40-040 RP7517B1024 Screw Terminals (for 14 to 22 ga. wire)

416

©2023 Johnstone Supply, LLC