Watts SS263AP User Manual
For Residential, Commercial and OEM Applications
ES-SS-263AP
Job Name
Job Location
Engineer
Approval
LEAD FREE
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*
Series SS-263AP
Compact Stainless Steel
Water Regulators
Sizes: 1/4"-1/2" (8-15mm)
Series SS-263AP Compact Stainless Steel Water Regulators
are designed for use with deionized water, chemical solutions,
high purity water purification systems and low pressure steam,
15psi (1.0 bar), applications.
Features
• Rugged investment cast stainless steel body and cage
• Stainless steel adjusting screw
• Oversized orifice
1
•
/4" (8mm) gauge port
Materials
Contractor
Approval
Contractor’s P.O. No.
Representative
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SS263AP
3-Way
Body: Stainless steel ASTM-351-CF8M
Spring Cage: Stainless steel ASTM-351-CF8M
Disc: Buna-N (FDA) stainless steel stem
Diaphragm: Reinforced Buna-N (FDA)
Bottom Plug: Stainless steel
Bottom Spring: Stainless steel
Trim: Viton
®
*Viton
is a registered trademark of DuPont Dow Elastomers.
®
*
Options
add suffix:
G pressure gauge
X slotted adjusting screw
See Pressure -Temperature section for reduced pressure
range options
Specifications
A compact lead free* water regulator shall be installed on
deionized water purification or chemical handling systems as
indicated on the plans. Regulator shall have a stainless steel
body and cage and oversized orifice. Regulator shall be a Watts
Series SS-263AP.
Pressure – Temperature
Temperature Range: 33ºF –120ºF (0.5ºC – 49ºC)
Maximum Operating Pressure: 400psi (27.6 bar)
Reduced Pressure Range:
OPTION SUFFIX RANGE STD SET AT
psi bar psi bar
A 1-25 0.1-1.8 10 0.7
B 3-50 0.2-3.5 15 1.0
C 10-125 0.7-8.8 25 1.8
D 20-175 3.5-12.3 50 3.5
E 100-300 7.0-21.0 125 8.8
* The wetted surface of this product contacted by consumable
water contains less than 0.25% of lead by weight.
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 without prior notice and without incurring any obligation to make such changes and modifications on Watts products previously or subsequently sold.
Capacity
bar psi
Initial pressure: 100psi (7.0 bar)
3.4 50
2.8 40
2.1 30
1.4 20
.7 10
0 0
Reduced Pressure P.S.I.G.
1 2 3 4 5 6 7 gpm
3.8 7.6 11.4 15.2 19.0 22.8 26.6 lpm
Flow
Note: 1psi equals .07 bar
1gpm equals 3.785 liters per minute
Dimensions - Weights
SIZE (DN) DIMENSIONS WEIGHT
A A1
in. mm in. mm in. mm lbs kg
1
⁄4 8 NA — 33⁄4 95 1.8 .82
3
⁄8 10 NA — 33⁄4 95 1.8 .82
1
⁄2 15 211⁄16 68 NA — 1.5 .68
1
/4" and 3/8" valves are supplied with 2 reducing bushings
Note:
to 1/2" NPT connection.
"
43/4
121 mm
"
21/8
54 mm
A
A1
A Watts Water Technologies Company
USA: Tel: (978) 688-1811 • Fax: (978) 794-1848 • www.watts.com
Canada: Tel: (905) 332-4090 • Fax: (905) 332-7068 • www.wattscanada.ca
ES-SS-263AP 1220 © 2012 Watts
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