Specifications
10
Tech Support: 855-ONE-ZURN
www.zurn.com
Model 500YSBR Union end connection standard and available
1/2” through 2” in FNPT
Model 500HRYSBR Spring range is 75-125 psi, factory set at
85 psi; field set 2
1
/
2
” – 3”
Model 510YSBR Rated for 400 psi inlet and spring range is 75-
125 psi, factory set at 85 psi; field set
2
1
/
2
” – 3”
Model 510YSBRSC Sealed cage bell and stainless steel adjusting
screw. For meter box, below-ground, and
indoor applications
Model 500YSBRHLR Spring range is 10 – 125 psi, factory set at
50 psi; field set 2
1
/
2
” – 3”
Model 500YSBRHT For high temperature application, up to
210°F
Model 500YSBRL Less built-in bypass
Model 500YSBRLPV Same as 500YSBRHT except spring range is
10 – 35 psi, factory set at 20 psi
Model 500YSBRLPC Spring range is 10 – 35 psi, factory set at
20 psi
Model 500YSBRSW Chrome internals for salt water service
Model 500XLYSBR California AB 1953 compliant
For Additional Information, including flow curves, reference
WK-RC catalog or visit our web site.
• 1/2”, 3/4”, 1”, 1
1
/
4
”, 1
1
/
2
”, 2”, 2
1
/
2
”, 3”
• Pressure rated 300 psi
• Spring range 25 to 75 psi; factory set at 50 psi
• Field set 2
1
/
2
” – 3”
• Maximum temperature 180°F
• All bronze body and bell housing provides durability and long life
• Built-in by-pass prevents buildup of excessive system pressure caused by
thermal expansion (1/2” – 2”)
• Includes in-line bronze wye type strainer with 20 mesh stainless steel
screen & pipe nipple
• Nylon reinforced Buna-N diaphragm
• Balanced piston design
• May be installed in any position
• All internal parts corrosion-resistant
• Serviceable in-line
• Available tapped and plugged for gauge (optional)
• Available tapped with gauge (optional)
• Available with BSP threads 1/2” through 2” (optional)
• ASSE
®
Listed 1003 (1/2"-2
1
/
2
"), IAPMO
®
Listed (1/2"-2"), CSA
®
Certified
(1/2"-2"), City of Los Angeles (1/2"-3")
The 500YSBR series pressure reducing valve with wye strainer rounds out the model 500 series offering.
Combining the features and benefits of the model 500 with the protection offered by a wye strainer, the
500YSBR is ideal for reducing pressure on the incoming line to any commercial or industrial building.
The model 500YSBR’s high flow rate and low fall-off also make its use desirable in irrigation systems that
are susceptible to damage from high pressure. The provided “S” strainer protects downstream equip-
ment from suffering the deleterious effects of sand or debris found in many municipal water lines.
Local codes shall govern installation requirements. Unless otherwise specified, the assem-
bly shall be mounted in accordance with the manufacturers’ instructions and the latest
edition of the Uniform Plumbing Code. The assembly shall be installed with sufficient
side clearance for testing and maintenance. The Model 500YSBR may be installed in any
position. If installed in a pit, vault, or indoors, specify the “SC” sealed cage option. Multiple
installations are recommend for wide demand variations or where the desired pressure
reduction is more than 4 to 1 (ie: 200 psi inlet reduced to 50 psi outlet). CAUTION:
Anytime a reducing valve is adjusted, a pressure gauge (Model HGI-25) must be used
downstream to verify correct pressure setting. Do not bottom out adjustment bolt on bell
housing.
OptionsTypical Installation
500YSBR Series
Features Applications
VERTICAL INSTALLATION
HORIZONTAL INSTALLATION
MODEL DU
DIELECTRIC UNION
OPTIONAL
PRESSURE GAUGE
MODEL 92
DIRECTION OF FLOW
OPTIONAL PRESSURE GAUGE
MODEL 92
MODEL 850
SHUT-OFF VALVE
DIRECTION OF FLOW
MODEL 500YSBR
MODEL 500YSBR
VERTICAL INSTALLATION
HORIZONTAL INSTALLATION
MODEL DU
DIELECTRIC UNION
OPTIONAL
PRESSURE GAUGE
MODEL 92
DIRECTION OF FLOW
OPTIONAL PRESSURE GAUGE
MODEL 92
MODEL 850
SHUT-OFF VALVE
DIRECTION OF FLOW
MODEL 500YSBR
MODEL 500YSBR
Accessories
Pressure gauges (Model 92-25A 1/2", 3/4") (Model 92-25 1" – 3")
Water Pressure Reducing Valves