Technical Specifications

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Approval
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Series RPV Residential Purge, Drain and Balancing Valves provide
a unique and low cost solution for start-up purging, balancing and drain-
ing of hydronic heating loops. Using a rugged, dual-ball valve design, the
small and compact RPV facilitates high volume purging, accurate balanc-
ing, tight shutoff and hose connection for draining and purging.
Features
• One-piece construction – no extra assembly required
• Maximum air purging – purges 500 foot loop in approximately
10 seconds
• Positive shutoff dual-ball valve design – tight seal on balance
port maximizes purging
• New 90° Models allows tight to wall mounting
• New SM Models allows direct connect to pump flange
Models
RPV-T female NPT inlet x female NPT outlet,
3
/4"
RPV-S solder inlet x solder outlet,
3
/4", 1 ", 1
1
/4" (*)
RPV-TS female NPT inlet x solder outlet,
3
/4"
RPV-ST solder inlet x female NPT outlet,
3
/4"
RPV-SM solder inlet x male NPT outlet,
3
/4", 1 ", 1
1
/4" (*)
Specifications
A purge, drain and balancing valve shall be installed where indicated on
the plans. The valve shall facilitate high volume purging, accurate balanc-
ing, tight shutoff and hose connection for draining and purging. The valve
shall feature a dual-ball valve design. The valve shall be a Watts
Regulator Company Series RPV.
Materials
Body: Bronze/brass
Ball: Plated brass
Seats: Virgin PTFE
Pressure – Temperature
Maximum Inlet Temperature: 250°F (121°C)
Maximum Working Pressure: 50psi (344 kPa)
Series RPV
Residential Purge, Drain
and Balancing Valves
Sizes:
3
/4
"
– 1
1
/4
"
(20 – 32mm)
1
1
/4
"
RPV-S-90
1
1
/4
"
RPV-SM-90
1
"
RPV-S-90
3
/4
"
RPV
Watts product specifications in U.S. customary units and metric are approximate and are provided for reference
only. For precise measurements, please contact Watts Technical Service. Watts reserves the right to change or
modify product design, construction, specifications, or materials without prior notice and without incurring any
obligation to make such changes and modifications on Watts products previously or subsequently sold.
For Residential Applications
ES-RPV
* Available as with -90 with Tee handle (
3
⁄4", 1") or lever handle (1
1
⁄4")
90° orientation from purge outlet (standard models 180° orientation)