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Caleffi Single Zone Control Relay - ZSR101 Caleffi Zone Control Relay. ZSR101

Caleffi Z-one Single zone switching relay operated by low voltage
thermostats.

Our Price: $65.00
.5" 2W 0.4CV BALL VLV+GDE131.1P | Valve/Actuator Assembly Siemens Motorized Ball Valve 171A-10300

SIEMENS 1/2",  2-WAY, BALL VALVE, 24 VAC, FLOATING CONTROL, 05" 2W 0.4 CV BALL VLV+GDE131.1P

Our Price: $71.85
Caleffi 3-Zone Control Relay - ZSR103 Caleffi Zone Control Relay. ZSR103

Caleffi Z-one 3-zone pump and boiler operating control for multiple zone hydronic heating systems.

Our Price: $136.00
Heat-Timer SPC Control, 929150-UA Heat-Timer Digi-Span SPC Elite Series

  • Heat-Timer SPC
  • Single Point - Single Output
  • 110 Volt Input
  • Sensors Sold Separately
  • SPC Brochure

Our Price: $120.00
Heat-Timer TSC Control, 929155-UA Heat-Timer Digi-Span TSC Elite Series Two Stage Control

  • TSC - TWO - STAGE ON/OFF (Optional Lead Lag & Lead Stage rotation)
  • Also can be field configured for Change Over Operation.
  • Sensors Sold Separately
  • TSC Brochure

Our Price: $134.00
Heat-Timer MCA Control, 929160-UA Heat-Timer Digi-Span MCA Elite Series Modulating Set Point Controls

  • MCA-Elite: Modulates 4-20mA, 0-5V, 0-10V, 1-5V and 2-10V Actuators
  • Sensors Sold Separately
  • MC Series Brochure

Our Price: $255.00
Heat-Timer MCP Control, 929165-UA Heat-Timer Digi-Span MCP Elite Series Modulating Set Point Control

Our Price: $255.00
SIEMENS, 0.5" 2W 0.4CV BALL VLV+GDE131.1Q+ADPTR Siemens Motorized Ball Valve 173A-10300

SIEMENS 1/2",  2-WAY, BALL VALVE, CHROME BRASS TRIM, 24 VAC, FLOATING CONTROL, 0.5" 2W 0.4CV BALL VLV+GDE131.1Q+ADPTR

Our Price: $93.80
Siemens 1/2" Magnetic Valve Siemens Magnetic Modulating Control Valves MXG461.B15-0.6

Siemens 1/2" Red Brass FIP, 2 or 3 Way Mixing,

CLICK HERE FOR INFO ON B SERIES VALVE

Our Price: $1,040.85
Caleffi 4-Zone Control Relay - ZSR104 Caleffi Zone Control Relay. ZSR104

Caleffi Z-one 4-zone pump and boiler operating control for multiple zone hydronic heating systems.

Our Price: $158.00
Heat-Timer MCF Control, 929190-UA Heat-Timer Digi-Span MCF Elite Series Modulating Set Point Control

Our Price: $255.00
SIEMENS, 0.5" 2W 0.4CV BALL VLV+GDE161.1P Siemens Motorized Ball Valve 171C-10300

SIEMENS 1/2",  2-WAY, BALL VALVE, CHROME BRASS TRIM, 24 VAC, 0-10 VDC, 05" 2W 0.4 CV BALL VLV+GDE161.1P

Our Price: $100.71
Caleffi 6-Zone Control Relay - ZSR106 Caleffi Zone Control Relay. ZSR106

Caleffi Z-one 6-zone pump and boiler operating control for multiple zone hydronic heating systems.

Our Price: $191.00
SIEMENS, 0.5" 2W 0.4CV BALL VLV+GDE161.1P Siemens Motorized Ball Valve 173C-10300

SIEMENS 1/2", 2-WAY, BALL VALVE, CHROME BRASS TRIM, 24 VAC, 0-10 VDC, 0.5" 2W 0.4CV BALL VLV+GDE161.1Q+ADPTR

Our Price: $123.34
Siemens 1/2" Magnetic Valve Steam Siemens Magnetic Modulating Control Valve MVF461H15-0.6-W

Siemens 1/2", CV, 0.7, 2-way N/C, Steam with Weld Flanges

CLICK HERE FOR INFO ON H SERIES VALVE

Our Price: $1,216.78
Caleffi 3-Zone Valve Relay - ZVR103 Caleffi Zone Control Relay. ZVR103

Caleffi Z-one 3-zone valve relay and boiler operating control for multiple zone hydronic heating systems.

Our Price: $106.00
SIEMENS, 0.5" 2W 0.4CV BALL VLV+GQD121.1P-NO Siemens Motorized Ball Valve 171H-10300

SIEMENS 1/2",  2-WAY, BALL VALVE, CHROME BRASS TRIM, 24 VAC,ON/OFF, 0.5" 2W 0.4CV BALL VLV+GQD121.1P-NO

Our Price: $120.82
Siemens 1/2" Magnetic Valve Steam Siemens Magnetic Modulating Control Valve MVF461H15-0.6-N

Siemens 1/2", CV, 0.7, 2-way N/C, Steam with NPT Flanges

CLICK HERE FOR INFO ON H SERIES VALVE

Our Price: $1,216.78
Siemens 1/2" Magnetic Valve Siemens Magnetic Modulating Control Valve MXG461.15-1.5U

Siemens 1/2", CV, 1.8, 2-3 Way MIXING 0-10 VDC
CLICK HERE FOR INFO ON U SERIES VALVE

Our Price: $589.28
Caleffi 4-Zone Valve Relay - ZVR104 Caleffi Zone Control Relay. ZVR104

Caleffi Z-one 4-zone valve relay and boiler operating control for multiple zone hydronic heating systems.

Our Price: $125.00
SIEMENS,0.5" 2W 0.4CV BALL VLV+GQD121.1P NC Siemens Motorized Ball Valve 172H-10300

SIEMENS 1/2",  2-WAY, BALL VALVE, CHROME BRASS TRIM, 24 VAC,ON/OFF, 0.5" 2W 0.4CV BALL VLV+GQD121.1P NC 24 VAC, 20LB-IN

Our Price: $120.82
Siemens 1/2" Magnetic Valve Siemens Magnetic Modulating Control Valve MXG461B15-1.5

Siemens 1/2", CV, 1.8, 2-3 Way MIXING, RED BRASS
CLICK HERE FOR INFO ON B SERIES VALVE

Our Price: $1,044.85
Caleffi 6-Zone Valve Relay - ZVR106 Caleffi Zone Control Relay. ZVR106

Caleffi Z-one 6-zone valve relay and boiler operating control for multiple zone hydronic heating systems.

Our Price: $158.00
SIEMENS, 0.5" 2W 0.4CV BALL VLV+GQD131.1P-N0 Siemens Motorized Ball Valve 171J-10300

SIEMENS 1/2",  2-WAY, BALL VALVE, CHROME BRASS TRIM, 24 VAC, FLOATING, 0.5" 2W 0.4CV BALL VLV+GQD131.1P-NO, 24 VAC, 20LB-IN

Our Price: $136.85
SIEMENS, 0.5" 2W 0.4CV BALL VLV+GQD121.1P-NO Siemens Motorized Ball Valve 172J-10300

SIEMENS 1/2",  2-WAY, BALL VALVE, CHROME BRASS TRIM, 24 VAC,FLOATING, 0.5" 2W 0.4CV BALL VLV+GQD121.1P-NC 20 LB-IN

Our Price: $136.85
Caleffi Zone Control Expansion Transformer NA10343 Caleffi Zone Control Expansion Transformer - NA10343

Caleffi expansion transformer for the ZVR Series multi-zone valve relay and boiler operating controls.

Our Price: $43.00
SIEMENS,0.5" 2W 0.4CV BALL VLV+GQD121.1P NC Siemens Motorized Ball Valve 172K-10300

SIEMENS 1/2",  2-WAY, BALL VALVE, CHROME BRASS TRIM, 24 VAC,2-10-VDC, 0.5" 2W 0.4CV BALL VLV+GQD151.1P NC, 20 LB-IN

Our Price: $146.28