Different pressuretrols types?

Perhaps this will help ..

PA404A PRESSURETROL. MAKES CIRCUIT AT SETPOINT PRESSURE FALL; BREAKS AT SETPOINT & DIFF. ON PRESSURE RISE. ADJ ADDITIVE DIFF: 1-5 PSI. SAFETY FOR STEAM HTG BOILERS.



PA404A1025 PRESSURETROL SPST SWITCHING. BREAKS ON PRESS RISE. RANGE 3 TO 15 PSI. RANGE .2 TO 1.0 KG/CM2. SUBTRACTIVE DIFF. 1 180.55 12 0.8 0003 GEN

http://customer.honeywell.com/honeywell/ProductInfo.aspx/PA404A1025



PA404A1033 RANGE .5 TO 9PSI (.1 TO .6KG/CM2) WITHOUT LUGS TRADELINE

http://customer.honeywell.com/honeywell/ProductInfo.aspx/PA404A1033



I couldn't find a 1092 reference.



Additionally, here is the brochure for all Honeywell Pressure controls.

http://customer.honeywell.com/techlit/pdf/63-0000s/63-9727.pdf