Watts Regulators series 740 boiler pressure relief valves are used in hot water space heating boiler applications to protect against excessive pressure on all types of hot water space heating boiler equipment. It consists of a iron body construction with expanded outlet drain connections for hot water space heating boilers, non-metallic disc-to-metal seating, stainless steel spring, and test lever. Series 740 offers large discharge capacity, resists corrosive water conditions, resists sticking and freezing, and prevents water and sediment from being trapped in the seat. It is designed for emergency safety relief and shall not be used as an operating control.

• Iron body with expanded outlets for hot water space heating boilers
• Seat located above drain, water can't be trapped and sediment can't foul seat
• Non-mechanical seat-to-disc alignment will not stick or freeze
• Water seal of high temperature resisting material isolates spring working parts from water during relief

Sid Harvey Item #:B145-5: Replaces Part #:'s : 35699,

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Watts Water B145-5

Watts Water B145-5

Watts Regulators series 740 boiler pressure relief valves are used in hot water space heating boiler applications to protect against excessive pressure on all types of hot water space heating boiler equipment. It consists of a iron body construction with expanded outlet drain connections for hot water space heating boilers, non-metallic disc-to-metal seating, stainless steel spring, and test lever. Series 740 offers large discharge capacity, resists corrosive water conditions, resists sticking and freezing, and prevents water and sediment from being trapped in the seat. It is designed for emergency safety relief and shall not be used as an operating control.

• Iron body with expanded outlets for hot water space heating boilers
• Seat located above drain, water can't be trapped and sediment can't foul seat
• Non-mechanical seat-to-disc alignment will not stick or freeze
• Each hot water space heating boiler shall be equipped with a pressure relief valve set to relieve below the maximum boiler working pressure
• Water seal of high temperature resisting material isolates spring working parts from water during relief

Sid Harvey Item #:B145-6: Replaces Part #:'s : 24603,
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B145-6

B145-6

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

Watts Water 0342691

M335-M2 Bronze 2-Port Pressure Safety Relief Valve, 3/4", MNPT x FNPT, 30 psi 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 0342692

Watts Water 0342692

Apollo Valves 10-407-05 Bronze Safety Relief Valve, 3/4", MNPT x FNPT, 30 psig

• Corrosion resistant construction
• Standard stainless steel spring
• Made in USA

Sid Harvey Item #:10-407-05: Replaces Part #:'s : 27620,
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Apollo Valves 10-407-05

Apollo Valves 10-407-05

Apollo Valves 10-408-05 Bronze Safety Relief Valve, 3/4", FNPT x FHPT 30 psig

• Corrosion resistant construction
• Standard stainless steel spring
• Made in USA

Sid Harvey Item #:10-408-05: Replaces Part #:'s : 27621,
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Apollo Valves 10-408-05

Apollo Valves 10-408-05

Watts Regulators series 740 boiler pressure relief valves are used in hot water space heating boiler applications to protect against excessive pressure on all types of hot water space heating boiler equipment. It consists of a iron body construction with expanded outlet drain connections for hot water space heating boilers, non-metallic disc-to-metal seating, stainless steel spring, and test lever. Series 740 offers large discharge capacity, resists corrosive water conditions, resists sticking and freezing, and prevents water and sediment from being trapped in the seat. It is designed for emergency safety relief and shall not be used as an operating control.

• Iron body with expanded outlets for hot water space heating boilers
• Seat located above drain, water can't be trapped and sediment can't foul seat
• Non-mechanical seat-to-disc alignment will not stick or freeze
• Each hot water space heating boiler shall be equipped with a pressure relief valve set to relieve below the maximum boiler working pressure
• Water seal of high temperature resisting material isolates spring working parts from water during relief

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740-3/4-50

740-3/4-50

Watts Water 740 Pressure Relief Valve, 3/4", FNPT, 30 psi, Iron

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740-3/4-1-30

740-3/4-1-30

Honeywell V8043B1027 Zone Valve 2-Way Normally Open24 VAC Straight 3/4" OD

AS-MB-125 Microbubble Air Separator, 1-1/4", IPS, 150 psig, 240 deg F, 23.1 gpm, Forged Brass, 3-12/16" L x 6-15/16" H,
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AS-MB125

AS-MB125

Resideo Braukmann DS06 Dial Set Pressure Regulating Valve is a high quality pressure regulating valve that maintains a constant outlet pressure over a wide range of inlet supply pressures. It is suitable for potable water and irrigation applications. The downstream pressure adjustment dial eliminates the need for a pressure gauge when adjusting the pressure setting (static pressure only).

• Built-In Dial-Set- no gauge is needed to install or set static pressure
• Built-in strainer to simplify maintenance
• Fabric reinforced diaphragm regulator, stainless steel and engineered thermoplastics internal parts
• Balanced single seat construction
• Minimum pressure differential between inlet and outlet ports is 14.5 psig
• Plus or minus 4 psig dial calibration
• Less than 0.25% of weighted average of low lead content
• 1/4" NPT gauge tap
• 10:1 maximum reduction ratio
• Double union sweat union fittings

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DS06-101-DUT-LF

DS06-101-DUT-LF

Webstone Valve Pro-Connect Press 74003 Air Separator, 3/4", FNPT, 150 psig, 6 gpm, Forged Brass, 3-5/8" W x 6-1/4" H

• Reduces noise
• Improves system efficiency and operation
• Reduces wear on system components
• Requires no regular maintenance
• Fewer call backs
• Stainless steel coalescing medium is a more durable alternative
• Pin guided float ensures smooth operation
• Vent head and coalescing medium can be removed for cleaning
• Flow may be directed into either side of the unit

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74003

74003