Brand Name
Type
Voltage
Pressure
|◀ 1 - 12 of 155 ▶|
View:
Amtrol Parts B135-41 Diaphragm Type Expansion Tank 4.4 Gallon 1/2" MPT 30 Lbs
  • Accepts expanded water as system temperature rises to reduce pressure build-up
  • Helps reduce energy consumption and reduces system wear
  • Suitable in propylene glycol applications with mixtures up to 50%
  • Heavy-duty butyl/EPDM diaphragm
  • Steel system connection
  • Projection welded air valve
  • Made in USA
Item#:
B135-41
Manufacturer Item:
389710
Manufacturer:
AMTROL INC
Honeywell L7224U1002 Electronic Oil Aquastat, 120 VAC, 130 - 240 deg F The L7224U oil electronic aquastat controller provides electronic temperature sensing in a UL limit-rated controller, controls the circulator, oil burner and boiler temperature, and provides status, LED diagnostic and EnviroCOM communication. Sid Harvey Item #:L7224U1002: Replaces Part #:'s : L40-764
Item#:
L7224U1002
Manufacturer Item:
L7224U1002
Manufacturer:
HONEYWELL
Honeywell Pressuretrol PA404A Pressure Controller with additive differential, 0.5 - 9 psi, 3-3/8" W x 4-15/32" H x 2-1/4" D
  • Pressure actuated high limit, safety control for steam heating boilers, It breaks an electrical circuit to shut down the burner if steam pressure rises above a safe level
  • Contains an SPST Micro switch snap-acting switch
  • Sensitive pressure actuated diaphragm expands or contracts with pressure variations, moving a lever mechanism which operates the snap switch
  • A screw on top of the case allows setpoint adjustment without removing the cover
  • Differential is adjusted by means of a dial located inside the case
  • Recommended minimum setpoint is differential setting plus 1-1/2 psi
  • Stainless steel diaphragm sensor element
  • Makes at setpoint on pressure fall breaks at setpoint plus differential on pressure rise
Sid Harvey Item #:C354: Replaces Part #:'s : 510312135
Item#:
C354
Manufacturer Item:
PA404A1033
Manufacturer:
HONEYWELL
Amtrol Parts B135-42 Diaphragm Type Expansion Tank 7.6 Gallon 1/2" MPT 60 Lbs
  • Accepts expanded water as system temperature rises to reduce pressure build-up
  • Helps reduce energy consumption and reduces system wear
  • Suitable in propylene glycol applications with mixtures up to 50%
  • Heavy-duty butyl/EPDM diaphragm
  • Steel system connection
  • Projection welded air valve
  • Made in USA
Item#:
B135-42
Manufacturer Item:
389732
Manufacturer:
AMTROL INC
Amtrol Parts B135-70 Diaphragm Expansion Tank 2 Gallon 3/4" MNPT 150 psi
Item#:
B135-70
Manufacturer Item:
390570
Manufacturer:
AMTROL INC
Watts Regulators series 1156F high capacity feed water pressure regulators are for use in commercial and residential hydronic heating systems to fill the boiler and piping system with water, and to maintain water pressure in the system at all times. It also provides make-up water to the system in the event of system leaks. It consists of an iron and bronze body construction with NPT threaded inlet and outlet connections, a tight seating check valve, purge lever for manual purging, and a stainless steel strainer. Series 1156F has high capacity performance and simplified servicing design.
  • Tight seating check valve
  • Purge lever for manual purging
  • High capacity performance as well as unique simplified servicing accessibility for complete unitized maintenance
  • Stainless steel strainer to protect the valve disc from fouling
  • Designed to fill the boiler and system piping with water and to maintain water pressure in the system at all times
  • Provide make up water to the system in the event of system leaks
  • 15 psi factory set, 100 psi maximum working pressure
Sid Harvey Item #:SB1156F: Replaces Part #:'s : R55-794
Item#:
SB1156F
Manufacturer Item:
0386422
Manufacturer:
WATTS REGULATOR CO
The L8148 Aquastat Relays are immersion type hydronic controllers that combine high limit protection with switching relay control of burner and circulator motors.
Sid Harvey Item #:C312-8: Replaces Part #:'s : 35786
Item#:
C312-8
Manufacturer Item:
L8148A1017
Manufacturer:
HONEYWELL
Amtrol Parts Amtrol Parts B135-40 Diaphragm Type Expansion Tank 2 Gallon 1/2" MPT 15 Lbs
  • Accepts expanded water as system temperature rises to reduce pressure build-up
  • Helps reduce energy consumption and reduces system wear
  • Suitable in propylene glycol applications with mixtures up to 50%
  • Heavy-duty butyl/EPDM diaphragm
  • Steel system connection
  • Projection welded air valve
  • 1 Gallon maximum acceptance volume
  • Made in USA
  • 13" H x 8" Diameter
Sid Harvey Item #:B135-40: Replaces Part #:'s : 3207
Item#:
B135-40
Manufacturer Item:
389695
Manufacturer:
AMTROL INC
Amtrol Parts B135-71 Diaphragm Expansion Tank 4.4 Gallon 3/4" MNPT 150 psi
Item#:
B135-71
Manufacturer Item:
390573
Manufacturer:
AMTROL INC
Honeywell L8148E1265/U Aquastat Relay, 120 VAC at 60 Hz, SPST, 180 - 240 Sid Harvey Item #:L8148E1265: Replaces Part #:'s : L39-036
Item#:
L8148E1265
Manufacturer Item:
L8148E1265
Manufacturer:
HONEYWELL
Aquastat controllers are immersion type devices for limiting or regulating the temperature of liquids in boilers, storage tanks, and other applications where temperature control is required. Honeywell's L4006 are used in applications that utilize the existing wells.
  • Totally enclosed micro switch snap-acting switches operate on temperature rise to setpoint
  • Visible control point scale and external adjustments screw permit easy setting
  • Direct or well immersion of the sensing element
  • Remote bulb model may be used to sense air temperature in ducts and in outside air sensing applications Honeywell L4006A2007 High or Low Limit Immersion Aquastat Controller, 100 - 240 deg F, 5 - 30 deg F Differential Sid Harvey Item #:C290A: Replaces Part #:'s : AQU4006A1678-C290 | AQU4006A2007-C290A | C290 | C290R |
Item#:
C290A
Manufacturer Item:
L4006A2007
Manufacturer:
HONEYWELL
FLEX2PRO Paint 16 ga Cold Rolled Steel Hydronic Expansion Tank 4.5 Gallon 1/2" MNPT 14" H x 11" Diameter
  • 100% butyl rubber, lined with polypropylene water chamber
  • Appliance quality paint for corrosion resistance
  • 100% butyl rubber diaphragm
  • Welded steel connection
  • High pressure, seam weld, helium, final pre-charge check testing
  • Brass valve with o-ring seal air valve
  • 2.5 Gallon maximum acceptance volume
  • 5 years warranty
Item#:
HT30
Manufacturer Item:
HTX30
Manufacturer:
FLEXCON INDUSTRIES
|◀ 1 - 12 of 155 ▶|
View: