Product Overview

PRODUCT RANGE - FLOWCAL
™
127 SERIES
03539-15NA
Calef North America, Inc. · 3883 W. Milwaukee Road · Milwaukee, WI 53208
Tel. [phone] · Fax [phone]
sales@calef .com · www.calef .com
© Copyright 2015 Calef North America, Inc.
WE RESERVE THE RIGHT TO CHANGE OUR PRODUCTS AND THEIR RELEVANT
TECHNICAL DATA, CONTAINED IN THIS PUBLICATION, AT ANY TIME AND WITHOUT
PRIOR NOTICE.
REFERENCE DOCUMENTATION: TECHNICAL BROCHURE 01166
TECHNICAL SPECIFICATIONS
127 SERIES
CODE CONNECTIONS
127341AF... ½” NPT Male
127349AFA... ½” Sweat
127351AF... ¾” NPT Male
127359AF... ¾” Sweat
127356AF... ¾” Press
127361AF... 1” NPT Male
127369AF... 1” Sweat
Max. working pressure: 232 psi.
Working temperature range: 32 to 212°F.
DZR Low-Lead Brass (less than 0.25% lead content certifi ed by IAPMO R&T).
The FLOWCAL flow cartridge is composed of a cylinder, a spring-
loaded piston, and a combination of fixed and variable orifices through
which the fluid flows. These variable orifice sizes increase or decrease
by the piston movement, contingent on the system’s fluid thrust. A
calibrated spring counteracts the pressure to regulate the amount
of fluid which may pass through the valve orifices, maintaining a
balanced system. FLOWCAL valves are high performance automatic
flow balancing valves which control selected flow rates within a tight
tolerance (approximately 10%) and offer a wide range of operation.
GPM
LAST 3
DIGITS*
...
∆P CONTROL
RANGE (PSID)
1/2 G50
2 — 14
3/4 G75
1 1G0
2 — 32
1.5 1G5
2 2G0
2.5 2G5
3 3G0
3.5 3G5
GPM
LAST 3
DIGITS*
...
∆P CONTROL
RANGE (PSID)
4 4G0
2 — 324.5 4G5
5 5G0
6 6G0
4 — 347 7G0
8 8G0
9 9G0
5 — 35
10 10G
To balance hydronic fan coil circuits.
APPLICATION DIAGRAMS
OPERATION WITHIN THE ∆P CONTROL RANGE
FLOW RATE
Nominal
Control range
Initial
Final
2 psi 32 psi
ΔP
∆P
∆P
If the differential pressure is within the control range, the spring-loaded
piston is positioned to give the fluid a free flow area permitting constant
flow at the nominal rate for which the FLOWCAL is set up.
To balance domestic hot water recirculation circuits.
*Last three digits of code number.