74
RB SERIES ENGINEERING GUIDE
Engineering Guide Specifi cations cont.
Hose Kits – Automatic Balancing and Ball Valves
(field-installed)
flexible steel braid hose featuring Kevlar
®
reinforced EPDM
core with ANSI 302/304 stainless steel outer braid and fire rated
materials per ASTM E 84-00 (NFPA 255, ANSI/UL 723 & UBC 8-1).
Ball valve at one end; swivel connector with adapter at the other
end (swivel to adapter connection via fiber or EPDM gasket). Swivel
connection provides union between heat pump and piping system.
The hoses feature brass fittings, stainless steel ferrules. A full port
ball valve shall be provided with integral P/T (pressure/temperature)
port on supply hose and automatic balancing valve with integral P/T
ports and full port ball valve on return hose.
Specifi cations:
• Temperature range of 35°F [2°C] to 180°F [82°C]
• Max. working pressure of 400 psi [2757 kPa] for 1/2 in.
and 3/4 in. hose kits; max. working pressure of 350 psi
[2413 kPa] for 1 in. and 1-1/4 in. hose kits
• Minimum burst pressure of four times working pressure
Hose Kits – Automatic Balancing and Ball Valves with ‘Y’
strainer (field-installed)
A fl exible steel braid hose featuring Kevlar
®
reinforced EPDM
core with ANSI 302/304 stainless steel outer braid and fi re rated
materials per ASTM E 84-00 (NFPA 255, ANSI/UL 723 & UBC
8-1). Ball valve at one end; swivel connector with adapter at the
other end (swivel to adapter connection via fi ber or EPDM gasket).
Swivel connection provides union between heat pump and piping
system. The hoses feature brass fi ttings, stainless steel ferrules.
A “y” strainer is provided on one end for fl uid straining and integral
“blowdown” valve. A full port ball valve shall be provided with
integral P/T (pressure/temperature) port on supply hose and
automatic balancing valve with integral P/T ports and full port ball
valve on return hose.
Specifi cations:
• Temperature range of 35°F [2°C] to 180°F [82°C]
• Max. working pressure of 400 psi [2756 kPa] for 1/2 in.
and 3/4 in. hose kits; max. working pressure of 350 psi
[2413 kPa] for 1 in. and 1-1/4 in. hose kits
• Minimum burst pressure of four times working pressure