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Honeywell Pressuretrol PA404A Pressure Controller with additive differential, 0.5 - 9 psi, 3-3/8 Inch W x 4-15/32 Inch H x 2-1/4 Inch 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
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
Amtrol designed and patented the first Extrol diaphragm expansion tank in 1954 to control system pressure and help reduce energy consumption in heating and chilled water systems. Over 6 decades later, Extrol is still the worlds leading expansion tank brand, setting the standard for quality, reliability and innovation. All Extrol tanks are made in the USA at our ISO registered facilities by American workers dedicated to producing the highest quality expansion tanks in the world.
  • 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
  • 2.5 gal maximum accepted volume
Sid Harvey Item #:B135-41: Replaces Part #:'s : L86-191
Item#:
B135-41
Manufacturer Item:
30
Manufacturer:
AMTROL INC
Honeywell V843 2-Way Low VAC age Zone Valve, 3/4 Inch, C, 125 psi, 3.5 Cv, 24 VAC
Sid Harvey Item #:B163-1: Replaces Part #:'s : B163-1R | B163-76 | ZVA3034-B163-76
Item#:
B163-1
Manufacturer Item:
V8043E1012
Manufacturer:
HONEYWELL
Taco 555-050RP Replacement Power Head for 570 Gold Series Motor Zone Valves
  • 3-wire terminal block wiring
Sid Harvey Item #:B163-80: Replaces Part #:'s : 21461
Item#:
B163-80
Manufacturer Item:
555-050RP
Manufacturer:
TACO INC.
Amtrol EXTROL EX-60 Urethane Topcoat Steel In-Line Diaphragm Type Hydronic Expansion Tank, 7.6 gal, 1/2 Inch NPTM, 100 psig, 23 Inch H x 11 Inch Dia.
  • 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
  • 2.5 gal maximum acceptance volume
  • Made in USA
Sid Harvey Item #:B135-42: Replaces Part #:'s : 37976
Item#:
B135-42
Manufacturer Item:
60
Manufacturer:
AMTROL INC
Sid Harvey B163-5R 2-Way/2-Position Normally Closed Spring Return Zone 2-way on-off low VAC age valves consist of an actuator and valve assembly for controlling the flow of hot water. For use in closed loop system water, such as fresh water from frequent source of makeup water.
Item#:
B163-5R
Manufacturer Item:
V8043F1036
Manufacturer:
SID HARVEY REMANUFACTURED
Honeywell 40003916-026/U Replacement Power Head with End Switch for V8043E Sid Harvey Item #:40003916-026: Replaces Part #:'s : 1C633
Item#:
40003916-026
Manufacturer Item:
40003916-026
Manufacturer:
HONEYWELL
Thermal expansion occurs as domestic water is heated. Left unchecked, the resulting pressure increase can cause relief valve discharge and other potentially hazardous conditions. Therm-X-Trol® expansion tanks absorb this expanded water, keeping water pressure at a safe level.
  • Antimicrobial liner neutralizes bacteria on contact
  • Turbulator water diffuser
  • Deep drawn steel domes for 2X the strength of other tanks
  • Thickest diaphragm for extra long life
  • Hoop and groove design for added reliability
  • Stainless steel system connection
  • 0.9 gal maximum accepted volume
Sid Harvey Item #:B135-70: Replaces Part #:'s : 3236
Item#:
B135-70
Manufacturer Item:
ST5
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
Taco heat motor zone valves provide a time proven method for system zoning and control. The exclusive heat motor design operates silently, while the twist off head allows for serviceability without disturbing system connections.
  • Heat motor zone valves provide a convenient way to create individual zones or equipment isolation in a hydronic heating system
  • Using multiple heat motor zone valves and a single pump, you can start, stop or divert flow through the system to provide individual room or area comfort control and energy savings
  • Rugged dependability
  • Silent operation
  • Twist off head
  • Bellows valve construction ensures positive shut-off and leak proof operation
  • Patented construction
  • Easy to install
  • Manual open lever
  • 100% factory tested
  • 24 VAC powered with isolated end switch
  • Made in USA
  • 3 years head, 5 years body warranty
Sid Harvey Item #:B163-76: Replaces Part #:'s : B163-1 | B163-1R | ZVA3034-B163-76
Item#:
B163-76
Manufacturer Item:
571-2
Manufacturer:
TACO INC.
Amtrol EXTROL EX-15 Urethane Topcoat Steel In-Line Diaphragm Type Hydronic Expansion Tank, 2 gal, 1/2 Inch NPTM, 100 psig, 13 Inch H x 8 Inch Dia.
  • 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 gal maximum acceptance volume
  • Made in USA
Sid Harvey Item #:B135-40: Replaces Part #:'s : 3207
Item#:
B135-40
Manufacturer Item:
B135-40
Manufacturer:
AMTROL INC
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