Sid Harvey B131-1 Regular Gauge Glass, 10 Inch L x 5/8 Inch Dia, 6/Pack

• Useful in a variety of applications, including monitoring the amount of oil in tank
• Gauge glasses are required by the ASME boiler and pressure code on steam boilers
• Allows the liquid level in any vessel to be visually inspected
• These sets and accessories fit the vast majority of steam boilers

Sid Harvey Item #:B131-1: Replaces Part #:'s : G34-973,
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Sid Harvey B131-1

Bell & Gossett B138-12A Lead Free Brass Low Pressure Valve 1/2" Union FPT x Sweat 10-25 PSI
Reducing valves protect heating and plumbing systems against excessive line pressures. They are factory set at specified limits although adjustment is easily made. Equipped with built-in-strainer and low inlet pressure check valve.

• Fast fill feature reduces start-up time and labor
• 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
• Flexible system connection
• Brass body construction is highly resistant to corrosion - ideal for water systems
• Protect heating and plumbing systems against excessive line pressures
• Equipped with built-in-strainer and low inlet pressure check valve
• Includes tailpiece
• Construction: diaphragm EPT with special insert, EPDM check valve and insert, brass valve plate, strainer and strainer nut wetted parts, steel non-wetted parts
• 12 psig factory set pressure, 125 psig maximum working pressure

Sid Harvey Item #:B138-12A: Replaces Part #:'s : B143-13 | B143-13R | B144-5,

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Bell & Gossett B138-12A

Amtrol Parts 444 Cast Iron Air Purger, 1-1/4", 125 psi, 4" W x 6" H

• Separates air from water in closed loop hydronic heating system
• System connection sets the point of no pressure change
• 1-year warranty
• 1/8" NPT top tapping, 1/2" bottom tapping
  
  Sid Harvey Item #:B135-81: Replaces Part #:'s : 21441,
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  Amtrol Parts B135-81

Therma-Flow Trufin NY7x8-5 Tankless Coil for New Yorker Series Boiler, 7 x,

Sid Harvey B133-2 Gauge glass Brass Washer 5/8"

Sid Harvey Item #:B133-2: Replaces Part #:'s : 4614,
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Sid Harvey B133-2

Therma-Flow Trufin RSM-5 Finned Copper Tubing Tankless Coil for BurnhamSid Harvey Item #:B42-31: Replaces Part #:'s : 2H409,

Noisy pipes, valves, and other air-related noises are often accepted as the signs of a functioning system. Excessive pump noise, cavitation, and cascading in terminal units are considered normal. But air in system water can cause corrosion, reduced efficiency, poorly heated or inadequately cooled rooms, accelerated component wear and on-going complaints. There is a device that will keep your system free of air permanently. Less maintenance, quiet operation, fewer costs!. Unlike conventional air eliminators or air scoops, the Spirovent completely eliminates 100% of the free air, 100% of the entrained air, and up to 99.6% of the dissolved air in the system. Consisting of woven copper wire soldered to a copper tube, the patented Spirotube creates a low velocity area in the Spirovent that scrubs the bubbles from the water. The air bubbles rise and collect in the air chamber before they are vented from the system via an integral automatic valve. Air problems become a thing of the past.

• Maintenance free
• No venting required
• Vent head is designed to stay dry, dirt and leak resistant
• 1/2" male thread port for pressure testing or remote venting of unwanted gases
• Quiet operation
• Increased component life
• Reduced oxygen based corrosion and pump cavitation
• The automatic air vent is guaranteed not to leak and can only be closed by the installer for a pressure test
• The air chamber has been designed so that dirt cannot reach the valve
• Large capacity collection chamber reduces the need for frequent draining
• Drain valve for flushing out the dirt
• Brass vent head
• Non-ferrous float
• ViTon seal and o-ring
• Copper coalescing medium

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Spirotherm B156-24

Bell & Gossett B138-12 Low Pressure Reducing Valve 1/2" NPT 10-25 PSI
Reducing valves protect heating and plumbing systems against excessive line pressures. They are factory set at specified limits although adjustment is easily made. Equipped with built-in-strainer and low inlet pressure check valve.

• Fast fill feature reduces start-up time and labor
• 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
• Flexible system connection
• Brass body construction is highly resistant to corrosion - ideal for water systems
• Protect heating and plumbing systems against excessive line pressures
• Equipped with built-in-strainer and low inlet pressure check valve
• Construction: diaphragm EPT with special insert, EPDM check valve and insert, brass valve plate, strainer and strainer nut wetted parts, steel non-wetted parts
• 12 psig factory set pressure, 125 psig maximum working pressure

Sid Harvey Item #:B138-12: Replaces Part #:'s : B138-12R,
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Peerless Boiler Parts B42-4 Tankless Hot Water Coil 5 GPM 5-1/8" x 10",

Peerless Boiler Parts B42-4

Sid Harvey B136-5 Tridicator Pressure/Temperature Gauge 2-1/2" Diameter Back Mounting,
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The patented Taco priority zoning circulator combines the reliability of the 00 circulator with the convenience and efficiency of a switching relay. With a built-in transformer, relay and priority switch, all the wiring is done directly to the circulator's PC board, making it ideal for adding a zone or an indirect hot water heater. Now available with optional integral flow check (IFC).

• Patented design patent #5,622,221
• 00 reliability
• Snap-in PC board
• Removable, quick-connect low VAC age terminal strip
• Optional Integral Flow Check (IFC)
• Simplified wiring
• LED power light
• 100% factory tested
• Works with other circulators or zone valves
• Universal thermostat compatibility
• Priority zoning

Sid Harvey Item #:B53-17: Replaces Part #:'s : 5W301,

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taco b53-17

Bell & Gossett B138-1 #8 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 B-38 pressure reducing component valves

Sid Harvey Item #:B138-1: Replaces Part #:'s : B138-1R | B143-12 | B144-1A,
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Bell & Gossett B138-1