Specification
ES-530C
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Series 530C
Calibrated Pressure Relief Valves
Sizes: ½" or ¾"
Series 530C Calibrated Pressure Relief Valves are spring
operated brass valves designed for use only as protection
from the build up of excessive pressure in systems containing
water, oil or air. Series 530C valves incorporate a calibrated
adjustment feature for setting the valve to the relief pressure
required. These valves are ideally suited for bypass thermal
expansion relief.
Features
• Calibrated adjustment feature for setting valve to relief
pressure required
• Adjustable range 50 – 175psi (3.4 – 12.1 bar)
• All brass construction
• All stainless steel spring
• Buna-N disc on machined body seat
• Inlet (bottom), male NPT threaded
• Outlet (side), female NPT threaded
Pressure – Temperature
Maximum Temperature: 180°F (82°C)
Spring Ranges
½" or ¾": 50 – 175psi (3.4 – 12.1 bar)
¾": 100 – 300psi (6.9 – 20.7 bar)
Note: The Watts Series 530C are not ASME approved safety
relief valves and should not be used in system application with
this requirement.
Model 530C
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.
NOTICE
Inquire with governing authorities for local installation requirements
The information contained herein is not intended to replace the
full product installation and safety information available or the
experience of a trained product installer. You are required to
thoroughly read all installation instructions and product safety
information before beginning the installation of this product.
NOTICE