Brochure

60
Regulators
How to Select
Standard Unit Orders
1. Determine body style based on type of service. See
Selection Data Chart below.
2. For complete units provide the 6 digit part number and
description in the following format.
1140 TMP REG – Body Code – Body Size –
Temperature Range
For example, to order a 1 inch NPT, 02 body, 140° to
180°F (60-82°C) degree range unit with standard bulb
and capillary, your order should have the following:
Hoffman Specialty Part Number – 400117 Description –
1140 TMP REG 02 1.0 140 – 180
Select a range with the operating set point in the mid or
upper portion of the range.
3. Units may also be ordered as Body Bracket Assemblies
with separate Actuators. This offers a large variety of
applications while maintaining low stock.
Body Service Body Recommended
Code Water Steam Design Application
01 XX
Two way Low pressure up to 50 psi (3.5 bar)
Heating
Differential (Composition Disc)
02 XX
Two way
Low & High pressure
Heating
up to 125 psi (8.6 bar) Differential
02R X
Two way
(SS Seat and Disc)
Cooling
03 X
Two way High pressure up to 250 psi (17.3 bar)
Heating
Differential (SS Seat and Disc)
05 XX
Two way
Heating High pressure up to 250 psi (17.3 bar)
05R X
Two way
Differential (Double Seated SS)
Cooling
Three way
06 X Mixing or Sliding piston three way valve
Diverting
Series 1140 & 1141
Thermostatic Temperature Regulators
The Series 1140 & 1141 Temperature Regulators
are designed to maintain a desired temperature
for commercial and institutional heating and
cooling applications. They are self-actuated and vapor
pressure operated.
Series 1140 Regulators are cross ambient filled and may
be used where ambient temperature exceeds the set
control temperature. Series 1141 Regulators are not cross
ambient filled and should not be used where ambient
temperature exceeds the set control temperature.
Selection Data
• Operating modes
—Direct Acting
—Reverse Acting
—Three Way
• Available in sizes
1
⁄2" - 2" NPT
2
1
/2" - 4" (65 - 100mm) Flanged
• Available in various body styles with different
seating arrangements
• Hermetically sealed actuator available in
temperature control ranges of 40°F (4.4°C) through
220°F (104°C) in increments of 40°F (22.2°C)
• Optional wells available in copper or stainless steel
• Heavy duty 10 ft. (3mm) capillary with flexible armor
and reinforced ends
• Maximum body pressure
—
1
⁄2" -1
1
⁄2" NPT 250 psig (17.3 bar)
—2" NPT 200 psig (13.8 bar)
—2
1
⁄2" - 4" (65-100mm) Flanged 125 psig (8.6 bar)
• Maximum body temperature 406°F (208°C)
WARNING
Series 1140 and 1141 Regulators fail open.
An alarm or cut-off must be installed on
applications where overheated water could
cause harm.
Failure to follow this warning could cause
serious burns, personal injury, or death.
!
Hoffman Specialty
®
Regulators