Caleffi 553549A AutoFill Filling Valve 1/2" Sweat x NPT
The automatic filling valve is a device consisting of a pressure reducing valve with compensating seat, visual system pressure setting indicator, an inlet filter, anti-scale internal parts, a shut-off valve and a check valve. It is installed on the water inlet piping in sealed heating systems, and its main function is to maintain the pressure of the system stable at a set value, automatically filling up with water as required. This valve has been designed as pre-adjustable, which means that it can be adjusted at the required pressure value before the system charging phase. After installation, during the filling or topping-off phase, the water feed will stop when the set pressure is reached filling 50% faster than other valves. There are no levers to flip or valve to close. Pre-assembled with the 573 series backflow preventer, the AutoFill Combo features an atmospheric vent which is designed to protect drinking water systems from return flow, caused by back-siphoning or back pressure, of contaminated fluids. The 573 series has been specifically certified to standards CSA B64.3 and ASSE 1012.

Caleffi 553549A

Features

Seat located above drain so that water is never trapped and sediment never fouls the seat

Nonmechanical seat-to-disc alignment that does not stick or freeze

Water seal of high temperature resisting material to isolate spring working parts from water during relief*

Nonmetallic disc-to-metal seating

Available in diameters from 34" to 2"

Optional SentryPlus Alert discharge line flood sensor which when paired with a connection kit (sold separately) can detect excessive water discharges from the relief valve (Refer to ES-FS-ReliefValve.)

Watts Water 740-030-FS-3/4

VentRite 75VT Brass Non-Adjustable Air Valve, 3/4 x 1/2", Male x Female

• All vents are factory assembled, tested and inspected in the USA
• Each vent is individually packed with External labeling for convenience and maintenance
• Our vents have all brass internals with nickel plated and hand polished exterior
• Every Vent-Rite vent is factory assembled, tested and inspected in the USA

Sid Harvey Item #:75VT: Replaces Part #:'s : 2K903
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Vent-Rite Corporation 75VT

VentRite 77VT Brass Non-Adjustable Air Valve, 3/4 x 1/2", Male x Female

• All vents are factory assembled, tested and inspected in the USA
• Each vent is individually packed with External labeling for convenience and maintenance
• Our vents have all brass internals with nickel plated and hand polished exterior
• Every Vent-Rite vent is factory assembled, tested and inspected in the USA

Sid Harvey Item #:77VT: Replaces Part #:'s : 6G1031
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Vent-Rite Corporation 77VT

Webstone Valve 75003 Air Separator 3/4" Sweat

Webstone Valve 75003

Watts 9DM3-S Forged Brass Dual Check Backflow Preventer with Intermediate Atmospheric Vent, 1/2", Female Union

• It prevent the reverse flow of hot or cold polluted water from entering into the potable water supply
• It consists of a brass body with stainless steel internal parts, integral strainer, and two durable, tight-sealing, rubber check valves
• For continuous pressure, non-health hazard applications in smaller supply lines
• It features a primary check valve utilizing a rubber disc seating against a mating rubber part to ensure tight closing
• A secondary check valve utilizes a rubber disc-to-metal seating
• In the event of fouling of the downstream check valve, leakage would be vented to atmosphere through the vent port thereby safeguarding the potable water system
• True line-sized construction allows the check modules to open further allowing dirt and debris to pass more freely reducing check fouling
• Maximum flow at low pressure drop
• Furnished with union connections to facilitate removal and replacement for maintenance
• Compact for economy combined with performance
• Design simplicity for easy maintenance
• Can be installed vertically or horizontally

Sid Harvey Item #:9DM3SW1/2: Replaces Part #:'s : 40588,
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Watts Water 9DM3SW1/2

Heat-Timer Corporation 925006-00 Heat-Timer Corporation
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Heat-Timer Corporation 925006-00

Heat-Timer Corporation Varivalve 925005-00 Chrome-Plated Brass Angle Radiator Quick Vent Valve, 1/8", Male

• Exclusive fingertip adjustment
• Large variable orifice
• Phosphor bronze bellows
• High temperature"o" ring seal
• Seat and poppet at inlet to valve

Sid Harvey Item #:925005-00: Replaces Part #:'s : 7G153,

Heat-Timer Corporation 925005-00

Cash Acme VR-801 VAC uum relief valve is designed to protect hot water supply systems and pressure vessels against negative pressure. It is especially well suited for many domestic and commercial systems. It works by preventing internal VAC uum conditions that could result in burned out heaters and/or collapsed storage tanks. Installed on the cold water supply line, the Cash Acme VR-801 closes tightly under pressure and opens at a 1" mercury VAC uum. Atmosphere admitted to the system breaks the VAC uum, preventing collapse of the storage tank.,

Cash Acme VR801-34LF

Resideo Braukmann AM-1 series accurately adjusts, maintains and limits the hot water temperature to a desired setting selected by the user. By installing a Resideo Braukmann AM-1 mixing valve, raising water heater storage temperature setting and limiting mixed outlet water temperature to a safe temperature, more usable hot water is available.

• Features dual purpose mixing or diverting values
• Offers constant water temperature under changing operating conditions
• Temperature is limited at any point and if cold water supply is interrupted, flow reduction occurs in seconds
• Provides reliable performance at minimum flow of 5 gpm and proportional valve for simultaneous control of hot and cold
• Tamper-resistant design with nickel-plated brass construction and EPDM o-rings
• Designed for easy maintenance and Teflon coating prevents mineral build-up and extends life
• Teflon-coated shuttle, EPDM rubber o-ring

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Resideo Braukmann AM100-US-1LF

Sid Harvey AN 77 700 Air Vent with Check Valve, 1/8 or 1/4 Inch, NPT, 175 psi

• Quick acting air vent with self-sealing mounting valve

Sid Harvey Item #:B157-7: Replaces Part #:'s : AV1,

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Sid Harvey B157-7

Watts Regulator series 335 ASME rated boiler pressure relief valves were developed to fill the OEM need of the hydronic industry for a smaller valve on popular size boilers up to 510000 BTU at 30 psi. The compact design, all bronze construction and modern appearance make them an ideal choice for a wide variety of smaller size OEM boilers. ASME section IV at 30 psi set point.,
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Watts Water 0342691