Watts Regulators series 530C calibrated pressure relief valves are used in commercial, residential and industrial applications to protect against excessive pressure in systems containing water, oil, or air. It consists of a bronze body construction with NPT threaded male inlet and NPT threaded female (drain) outlet connections, stainless steel spring, brass bonnet, buna-N disc and buna-N o-ring. Series 530C has a calibrated adjustment feature for setting the valve to the required relief pressure, and is ideal for by-pass thermal expansion pressure relief.

Valves are spring operated brass valves designed for use only as protection from the build up of excessive pressure in systems containing water, oil or air
• Incorporate a calibrated adjustment feature for setting the valve to the relief pressure required
• Adjustable stainless steel spring
• Buna-N disc on machined body seat
• Should not be used in system application
• Brass bonnet, spring washer and disc holder
  

  Watts Water B145-20

Bell & Gossett B146-10 Flo-Control SA-3/4 Iron 3-Way Straight-Angle Valve, 3/4", NPT

Combination straight-angle patterns permitting installation in either horizontal or vertical pipe lines
• Asbestos-free packing and gasket
  

  Bell & Gossett B146-10

Series LFP3 lead free multi-orifice flow control valves for tankless heaters are for use in commercial and residential hydronic heating systems to limit the flow of water to equipment in tankless heater installations. It has a multi-orifice cylinder design with solder connections that allow you to select a flow adjustment of 2 1/2, 3, 3 1/2, or 4 gpm by turning the cap to the desired setting.

Multi-orifice cylinder adjusts to 3, 3-1/2 or 4 gpm


Watts Water B49-20

Dole 8-4 Polished Nickel Bi-Metal Air/Steam Angle Valve, 1/8", Male

Tamper resistant
• Accurate bi-metallic actuator
• Internal float for positive water shut-off
• .4" diameter vent
• Economical
  

  Dole B148

Watts Regulators series 530C calibrated pressure relief valves are used in commercial, residential and industrial applications to protect against excessive pressure in systems containing water, oil or air. It consists of a bronze body construction with NPT threaded male inlet and NPT threaded female drain outlet connections, stainless steel spring, brass bonnet, Buna-N disc, and Buna-N o-ring. Series 530C has a calibrated adjustment feature for setting the valve to the required relief pressure, and is ideal for by-pass thermal expansion pressure relief not ASME approved. Model 530FP is for use in fire protection systems.

Calibrated adjustment feature for setting valve to relief pressure required
• Stainless steel spring
• Brass bonnet, disc holder and spring washer
  

  Watts Water B145-21

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

Bell & Gossett B156

Watts 9DM3 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
  

  Watts Water B146-70

Watts BBFP Forged Brass Dual Check Backflow Preventer with Intermediate Atmospheric Vent, 1/2", Union Thread

Dual check valves with intermediate atmospheric vent 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
• Designed for continuous pressure, non-health hazard applications in smaller supply lines
  

  Watts Water B146-70A

Amtrol Parts

Amtrol Parts B48-41

Dole 90-1 Air/Steam Straight Valve, 1/2 x 3/4", MIP x FIP

Dole B153-10

Gorton Heating Corp Vertical Straight #1 Air Vent Valve, 3/4 x 1/2"

Gorton Heating B153-1

Legend Valve PV-1 Bronze Purge Valve, 3/4"

Purge valves purge air from hot water heating systems, they are a bronze combination balance and purge fitting
• Serve as balancers by adjusting diverter to desired restrictions
• 1/2" drain tapping
  

  Legend Valve B137-31