PRESSURETROL® CONTROLS PA404 Series

Steam pressure controller for 24, 120, 240 or self powered millivolt applications. Stainless steel diaphragm type sensing element; SPST snap-action micro switch.

PA404A - Used as high limit safety controller on steam boilers. Breaks control circuit at setpoint plus differential on pressure rise. PA404B - Used as fan controller on steam unit heaters. Makes circuit at setpoint plus differential on pressure rise. 1/4” FPT Con- nection. Electrical rating: 8.0 amps @ 120v, 5.1 amps @ 240v.

CAT. NO. MFG. NO. 2C550 2C552

RANGE

PA404A1033 PA404B1023

0.5 to 9 psi 0.5 to 9 psi

DIFFERENTIAL EACH 1 to 5 psi adj. 1 to 5 psi adj.

$228.55 $243.00

Note: Use 2K580, 2K581, 2K898 or 2K898A syphons with these controls.

L404F Series NON-MERCURY

PRESSURETROL® CONTROLS With many states now restricting the sales

of controls containing mercury, we have replaced the “L604A” pressure controls with the new “non-mercury” L404F series. These controls are SP-DT and are physically the same size and mounting as the “L604A” series.

Used as an operating, or limit control for pressure systems such as steam, air, non-combustible gases, or non-corrosive fluids. These controls replace L404A & B and L604 pressure controls. 1/4” FPT Connection. SP-DT Snap switch is rated @ 8.0 amps - 120 V and @ 5.0 amps - 240 V.

CAT. NO. MFG. NO. 2C586F 2C588F 2C590F 2C592F

RANGE

L404F1060 L404F1078 L404F1102 L404F1094

2 to 15 psi 5 to 50 psi

10 to 150 psi 20 to 300 psi

DIFFERENTIAL EACH 1 to 6 psi adj. 4 to 12 psi adj. 8 to 16 psi adj. 15 to 40 psi adj.

$228.34 $226.46 $236.08 $287.11

Note: Use 2K580, 2K581, 2K898 or 2K898A syphons with these controls.

L4079B Series NON-MERCURY

PRESSURETROL® CONTROL

This control provides manual reset limit protection for pressure systems such as steam,

air, non-combustible gases, or non-corrosive fluids. Trip free reset mechanism does not permit the limit to be over ridden by jamming the reset button. 1/4” FPT Connection. SP-ST Snap switch is rated @ 908 amps - 120 V and @ 4.9 amps - 240 V.

CAT. NO. MFG. NO. 5G758F

RANGE L4079B1033 2 to 15 psi

DIFFERENTIAL EACH Manual Reset

$206.45 Note: Use 2K580, 2K581, 2K898 or 2K898A syphons with these controls.

L608 Series VAPORSTAT® CONTROLLER

Operating and high limit controller for vapor heating systems up to 4 psi. May be used with liquids, air, non-combustible gases, oxygen or distilled water.

Stainless steel diaphragm type sensing element; SPDT mercury switch. Furnished with syphon loop, 1/4” MPT connection. Electri- cal rating: 8.0 amps @ 120v, 5.1 amps @ 240v.

CAT. NO. MFG. NO. 2C208

RANGE L608A1046 0 to 16 oz.

DIFFERENTIAL EACH 4 to 16 oz./sq.in.

$397.89

C6097A Series GAS/AIR PRESSURE SWITCH

The C6097A is a positive pressure, UL ap- proved, safety switch for use with natural gas, liquid propane gas, or air. Rated max inlet pressure is 5 PSI.

Diaphragm actuated SP-DT switch, automatic reset, 1/4” FPT con- nection. Electrical rating: 3 amps @ 120/240V.

CAT. NO. MFG. NO. 2C599

RANGE C6097A1053 2.0 to 21” WC

DIFFERENTIAL EACH 0.24 to 0.48” WC $123.81

L91 Series PROPORTIONAL

PRESSURETROL® CONTROL

Modulating control used as a high limit or as a direct controller for a proportional motor on pressure systems such as steam, air, liquid or non-combustible gases not harmful to brass bellows.

140 ohm potentiometer with screw adjustment on top of case. Electrical rating: 24v AC only. Connection: L91B1035, 1/4” MPT; L91B1050, 1/4” FPT.

CAT. NO. MFG. NO. RANGE 2C558 2C560

L91B1035 L91B1050

0 to 15 psi 5 to 150 psi

DIFFERENTIAL EACH 1 to 12 psi adj. 5 to 23 psi adj.

$441.88 $490.95

REPLACEMENT POTENTIOMETERS for Proportional Pressure Controls

CAT. NO. MFG. NO. DESCRIPTION FITS: 2C801

23176CF 140 ohm EACH L91B, -C all ranges $110.39

746

CONTROLS