Brochure

Components for today’s modern hydronic systems

Heating & Cooling

n Precise valve adjustment with 6 full turns and 10

decimal graduations allow for accurate ﬂ ow setting.

n Double o-rings allow the control stem threads to

remain dry at all times so are not prone to seizing

from scale after long in-operation periods.

n Suitable for hydronic and plumbing applications,

constructed of DZR low-lead brass (Certiﬁ ed low

lead).

n PTFE stem guide bearing prevents noise and

vibration, particularly in severe operating conditions.

n Stainless steel plug is highly resistant to corrosion

and erosion due to continual ﬂ uid ﬂ ow or ﬂ uid

impurities for long operating life.

n Memory stop allows valve to be closed, and later

reopened to the original set postion.

BALANCING VALVE

FIXED ORIFICE

FUNCTIONS AND FEATURES

130 SERIES

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30 SERIES BALANCING VALVE FIXED ORIFICE Heating & Cooling Components for today’s modern hydronic systems FUNCTIONS AND FEATURES n Precise valve adjustment with 6 full turns and 10 n Double o-rings allow the control stem threads to decimal graduations allow for accurate flow setting. remain dry at all times so are not prone to seizing from scale after long in-operation periods.
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TECHNICAL SPECIFICATIONS 130 SERIES Caleffi 130 series low lead, manual balancing valves are used to measure and adjust the fluid flow rate in hydronic or plumbing circuits. The flow rate is directly determined from the pressure differential (from Venturi effect) measured across the two pressure test ports.