Mercoid Series AP

Series AP Diaphragm Operated Pressure Switch

Mercoid Series AP
Series AP

Visible Setpoint Adjustment, Compact

Reliable and convenient, the Mercoid Series AP pressure switch is a compact for instrument air or other low pressure applications. Visible set point and external adjustment add convenience. Used on air, non-corrosive gas or liquid service compatible with wetted parts. Unit also available in weatherproof and explosion-proof housing.

 

Mercoid Series AP Specifications

Wetted Materials:Nylon reinforced Buna-N and steel. PTFE and 316 SS optional.Temperature Limits:-30 to 150°F (-35 to 66°C).Pressure Limit:See Catalog page.Enclosure Rating:General purpose. Weatherproof and explosion-proof optional.Switch Type:SPDT mercury switch or SPDT snap switch. Other switch types available.Electrical Rating:Mercury switch: 4 A @ 120 VAC/DC, 2 A @ 240 VAC/DC. Snap switch: 15 A @ 120 VAC, 8 A @ 240 VAC, 0.5 A @ 120 VDC, 0.25 A @ 240 VDC.Electrical Connections:Screw terminal.Conduit Connection:7/8″ (22.23 mm) hole for 1/2″ (12.7 mm) conduit hub.Process Connection:1/4″ female NPT.Mounting Orientation:Vertical for mercury switch models, any position for snap switch models.Set Point Adjustment:External screw.Weight:General Purpose: 2 lb (0.9 kg).Deadband:See Catalog page.Agency Approvals:CE, CSA, FM, UL. For FM consult factory. (Mercury switch units are not CE approved.)

 

Available Models

MODELDESCRIPTION
AP-153-33Diaphragm operated pressure switch, range 10" vac-50" w.c. (2.5-12.4 kPa), SPDT mercury switch, low deadband 5" w.c. (1.2 kPa), high deadband 6" w.c. (1.49 kPa), max. pressure 15 psig (1.03 bar).
AP-153-37Diaphragm operated pressure switch, range 1-30 psig (.07-2.1 bar), SPDT mercury switch, low deadband 0.4 psig (0.03 bar), high deadband 0.75 psig (0.05 bar), max. pressure 60 psig (4.14 bar).
AP-153-39Diaphragm operated pressure switch, range 10-125 psig (.69-8.6 bar), SPDT mercury switch, low deadband 2 psig (0.14 bar), high deadband 6 psig (0.41 bar), max. pressure 160 psig (11.0 bar).
AP-7021-153-33Diaphragm operated pressure switch, range 10" vac-50" w.c. (2.5-12.4 kPa), SPDT snap switch, low deadband 8" w.c. (2.0 kPa), high deadband 10" w.c. (2.49 kPa), max. pressure 15 psig (1.03 bar).
AP-7021-153-37Diaphragm operated pressure switch, range 1-30 psig (.07-2.1 bar), SPDT snap switch, low deadband 0.75 psig (0.05 bar), high deadband 1.5 psig (0.10 bar), max. pressure 60 psig (4.14 bar).
AP-7021-153-39Diaphragm operated pressure switch, range 10-125 psig (.69-8.6 bar), SPDT snap switch, low deadband 3 psig (0.21 bar), high deadband 7 psig (0.48 bar), max. pressure 160 psig (11.0 bar).