Install Instructions

ManualsBrandsCaleffi ManualsBalancing Valves1" NPT FlowCal Automatic Flow Balancing Valve w/ Ball Valve (12 GPM)

Function

The FlowCal™ automatic flow balancing valve maintains a

constant fixed flow rate within varying system differential

pressure ranges. Operation is fully automatic requiring no

manual adjustment. The 121 series utilize an exclusive,

interchangeable flow cartridge, made of anti-scale, low

noise polymer for use in cooling and heating systems. The

FlowCal 121 series automatic flow balancing valves are

available with integral shut-off ball valve and optional

factory-installed pressure and temperature test ports.

Drain valves are also available as an accessory for

installing in the blowdown port connection.

Product range

121 Series Automatic flow balancing valve with polymer cartridge, ball valve, with and without

Pressure and Temperature Test ports;

sizes 1/2" - 3/4" - 1" - 1 1/4"

Technical characteristics

Material: Body: brass

FlowCal

flow cartridge: anti-scale polymer

Spring: stainless steel

Seals: EPDM

Ball: brass, chrome-plated

Ball seat and stem seal: PTFE

Lever: zinc coated steel with vinyl grip

Pressure and temperature test port plugs: brass

Pressure and temperature test ports: body and cap- brass; core- nordel

Drain port plug: brass

Performance: Medium: water, glycol solutions

Max. percentage of glycol: 50%

Max. working pressure: 400 psi (400 WOG)

Working temperature range: 32-212°F (0-100°C)

Connections: 1/2", 3/4", 1", 1-1/4" FNPT or Sweat with union x FNPT or Sweat

Pressure and temperature test ports connections: 1/4" FNPT

Blowdown port connection: 1/2" - 3/4": 1/4" FNPT

1" - 1 1/4": 1/2" FNPT

Flow rate: 27 flow rate settings ranging from 0.5 - 21 GPM

Flow accuracy: ±10%

Differential Pressure Control Ranges: 2-14, 2-32, 4-34, 5-35, 3-32, 4-35

Identification: metal plate with ball chain stating ∆P range and fixed flow rate

CALEFFI

FlowCal™ Automatic flow balancing valve with polymer cartridge

121 Series

NA18055

www.caleffi.com

Summary of content (4 pages)

PAGE 1
CALEFFI www.caleffi.com NA18055 FlowCal™ Automatic flow balancing valve with polymer cartridge 121 Series © Copyright 2011 Calef fi Function The FlowCal™ automatic flow balancing valve maintains a constant fixed flow rate within varying system differential pressure ranges. Operation is fully automatic requiring no manual adjustment. The 121 series utilize an exclusive, interchangeable flow cartridge, made of anti-scale, low noise polymer for use in cooling and heating systems.
PAGE 2
SAFETY INSTRUCTION This safety alert symbol will be used in this manual to draw attention to safety related instructions. When used, the safety alert symbol means ATTENTION! BECOME ALERT! YOUR SAFETY IS INVOLVED! FAILURE TO FOLLOW THESE INSTRUCTIONS MAY RESULT IN A SAFETY HAZARD. CAUTION: All work must be performed by qualified personnel trained in the proper application, installation, and maintenance of systems in accordance with all applicable codes and ordinances.
PAGE 3
FlowCal cartridge assembly and disassembly The internal flow cartridge can be removed easily from the valve body for inspection, cleaning or replacement by unscrewing the cap as shown here. Flow verification The flow rate can not be field adjusted. To verify flow rate with pressure and temperature gages or meter with sensor probes, use the factory-installed pressure and temperature test ports (or install separately sourced PT test ports, also available from Caleffi).
PAGE 4
Pressure and temperature testing The FlowCal body is fitted with connections for the pressure and temperature ports, which is useful when checking operation in the working range. In addition, drain valve (538202 FD 1/4" NPT; 538402 FD-1/2" NPT) can be connected for blowdown operations. ∆p (kPa) CAUTION: If the FlowCal valve is not installed, commissioned and maintained properly, according to the instructions contained in this manual, it may not operate correctly and may endanger the user.