Bell & Gossett Airtol ATF-12 Cast Iron Tank Fitting, 1/2", FNPT x FNPT Airtrol tank fittings help establish the proper initial liquid level in the compression tank when filling the hydronic system. They help maintain proper system pressurization by directing released air to the compression tank during system operation and permit cooler liquid flow to the boiler during the off cycle as system liquid cools. Airtrol tank fittings must be used with the appropriately sized in-line airtrol or rolairtrol air separator.

• Copper and copper plated tubes
• Brass vent tube fittings Airtrol tank fittings help establish the proper initial liquid level in the compression tank when filling the hydronic system. They help maintain proper system pressurization by directing released air to the compression tank during system operation and permit cooler liquid flow to the boiler during the off cycle as system liquid cools. Airtrol tank fittings must be used with the appropriately sized in-line airtrol or rolairtrol air separator.Sid Harvey Item #:ATF12: Replaces Part #:'s : 3651,
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  Bell & Gossett ATF12

Bell & Gossett A28-32 Circulator Motor 3/4 HP 1725 RPM 115 /230/2460 VAC CCW

Bell & Gossett A28-32

Bell & Gossett A28-15 Circulator Pump Motor 1/12 HP 115 VAC 1725 RPM,
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Bell & Gossett A28-15

Bell & Gossett A28-21 Circulator Pump Motor 1/6 HP 115 VAC 1725 RPM,
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Bell & Gossett A28-21

Bell & Gossett 111031 1-Speed 1-PH Circulator Pump Motor, 1/6 HP, 115 VAC ,Sid Harvey Item #:A28-20: Replaces Part #:'s : A28-20R,
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Bell & Gossett A28-20

Bell & Gossett A28-28 Circulator Motor 1/2 HP 1725 RPM 115 /230/2460 VAC CCW

Bell & Gossett A28-28

Bell & Gossett 111044 1-Speed 1-PH Cast Iron Circulator Pump Motor, 1/2Sid Harvey Item #:A28-27: Replaces Part #:'s : A28-27R,
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Bell & Gossett A28-27

Bell & Gossett A28-26 Circulator Pump Motor1/4-HP 115 VAC 1725 RPM,
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Bell & Gossett A28-26

Bell & Gossett A28-25 Circulator Pump Motor 1/3 HP 115/230 VAC 1725 RPM,
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Bell & Gossett A28-25

Bell & Gossett B156 Main Air/Steam Valve 3/4" IPS
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Bell & Gossett B156

Bell & Gossett Red Fox 103251 1-Speed Circulator Pump, 1/25 HP, 115 VAC , 2940 RPM , 0 - 22 gpm

• Double-sintered carbon bearing
• Ceramic shaft
• High starting torque provides years of trouble-free start-ups
• Unique B&G DuraGlide bearing system assures whisper - quiet, maintenance-free operation
• Closed impeller design improves operating efficiency
• Wet rotor circulator
• Stabilized, heat resistant, non-metallic impeller. Its closed design improves operating efficiency
• Self-cleaning particle shield protects the shaft and bearings from system start-up debris

Sid Harvey Item #:B50-54: Replaces Part #:'s : 3704,
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Bell & Gossett B50-54

Bell & Gossett B138 F3 Brass Dual Unit Valve 1/2" NPT 30 PSI Relief 12 PSI Reducing
Reducing valves fill the system to a preset pressure for optimum performance. Combination dual unit valves include pressure reducing valve and relief valve. Both Valves are equipped with an EPDM diaphragm. The diaphragm operated relief valve operates with a low differential between opening and closing pressures. The diaphragm operated pressure reducing valve is equipped with an inlet strainer and built-in low inlet pressure check valve.

• Low inlet pressure check valve help prevent loss of system pressure if the supply water drops below system pressure
• Convenient cleanable strainer is designed to prevent dirt and sediment from entering the system
• Relief and FB-38 pressure reducing component valves

Sid Harvey Item #:B138: Replaces Part #:'s : 36861,
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Bell & Gossett B138