For Steam, Liquid or Air Applications
ES-152A
Job Name
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Approval
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Engineer
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Contractor’s P.O. No.
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Watts product specifications in U.S. customary units and metric are approximate and are provided for reference only. For precise measurements,
please contact Watts Technical Service. Watts reserves the right to change or modify product design, construction, specifications, or materials with-
out prior notice and without incurring any obligation to make such changes and modifications on Watts products previously or subsequently sold.
Series 152A
Stainless Steel
Strainer Screen
Replaceable
Stainless Steel
Seat and Valve
Disc.**
Stainless Steel
Disc and Stem
Guide (This
stainless steel
trim is standard-
ly furnished at
no extra cost)
Laminated Metal
Diaphragm
Adjusting Springs
for reduced pressure
ranges between 3
and 140 psi (.21 and
9.8 bars)
Series 152A
Process Steam Pressure
Regulators
Sizes
1
⁄
2" – 2" (15 - 50mm)
Series 152A Process Steam Pressure Regulators are designed to
offer highly sensitive response to reduced pressure changes and
maintain fullest possible volume without appreciable reduced
pressure drop. These regulators are ideal for use on applications
such as oil lines, testing fixtures, autoclaves, steam tables, steam
irons, single radiators, vulcanizers, sterilizers and process lines. The
series 152A features a sensitivity adjuster to eliminate any vibrating
condition that may arise from critical flow requirements.
Features
• Iron body construction
• Serviceable in line
• Standard sensitivity adjuster
Models
152A – Iron body for pressures up to 200psi (14 bars)
152AT – Tight seating for dead end and liquid service. Utilizes
Teflon
®
valve disc, maximum operating temperatures are 300°F
(204°C) at 300psi (21 bars) and 400°F (204°C) at 200psi (14 bars)
For information on
1
⁄2
" – 1" stainless steel construction, see literature
ES-152SS.
Specifications
Valve shall be manufactured out of iron and have a maximum work-
ing pressure of up to 200psi. Valve shall feature a sensitivity adjuster
to eliminate vibrating conditions. Valves shall be serviceable in line
and have stainless steel trim and strainer. Valve shall be a Watts
Regulator Company Series 152A.
Materials
Body: Iron
Trim: Stainless Steel
Strainer: Stainless Steel
Diaphragm: Laminated Metal
Seat: Replaceable Stainless Steel
Disc: Replaceable Stainless Steel
Pressure – Temperature
152A Maximum Working Pressure: 200psi (14 bars)
152AT – Maximum Temperature: 300°F (149°C)
Maximum Working Pressure: 300psi (21 bars), and
Maximum Temperature: 400°F (204°C)
Maximum Working Pressure: 200psi (14 bars)
** When utilizing a Teflon
®
valve disc in the 152AT, the maximum
operating temperatures are 300°F at 300psi (149°C at 21 bars)
and 400°F at 200psi (204°C at 14 bars).
A Plus Feature
Sensitivity Adjuster
Basic Design Feature
Teflon
®
is a registered tradename of E.I. duPont deNemours Co., Inc.
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