ZURN 500XL3 Water Pressure Reducing Valve User Manual
- June 13, 2024
- ZURN
Table of Contents
ZURN 500XL3 Water Pressure Reducing Valve
Product Information
- Model: 500XL3
- Product Name: Water Pressure Reducing Valve
Materials
- Main valve body : Low lead cast bronze ASTM B806
- Bell housing : Low lead cast bronze ASTM B806
- Fasteners : Stainless steel, 300 series
- Stem : Stainless steel, 300 series
- Plunger : Stainless steel, 300 series
- Elastomers : Buna Nitrile (FDA approved), EPDM (FDA approved)
- Springs : Chrome Silicon, Epoxy Coated (2-1/2 – 4)
- Cartridge : NorylTM
Certifications: NSF/ANSI/CAN 61
Options
- – standard with single union FNPT inlet x FNPT outlet (1 thru 2) or less union (2-1/2 – 3)
- DU – double union FNPT x FNPT (1 – 2)
- DUC – double union Copper Sweat x Sweat (1 – 2)
- C – single union Copper Sweat x FNPT (1 – 2)
- F – Flanged Class 150 (2-1/2 – 4)
- HR – high range, outlet adjust from 75 psi to 125 psi
- Y – with lead-free bronze Y strainer on inlet (1 – 3)
- FY – with ductile iron Y type flanged strainer, fusion epoxy coated, inside and out (2-1/2 – 4)
- G – tapped and plugged with gauge
Accessories: Repair kits, By-Pass Kit, By-Pass Valve
Features
- Sizes: 1, 1 1/4, 1 1/2, 2, 2-1/2, 3, 4
- Maximum working water pressure
- Maximum working water temperature
- Reduced pressure range
- Factory preset
- Threaded connections (FNPT)
- Copper connections (Female)
- Flanged connections
Product Usage Instructions
- Select the appropriate size of the water pressure reducing valve based on your plumbing system requirements.
- If necessary, choose the desired option(s) for the valve, such as double union, copper sweat, flanged, high range, etc.
- Install the water pressure reducing valve in the desired location in your plumbing system.
- Make sure to connect the inlet and outlet of the valve according to the chosen option (FNPT, Copper Sweat, Flanged, etc.).
- If applicable, install the lead-free bronze Y strainer or ductile iron Y type flanged strainer for additional filtration.
- If desired, attach a gauge to the tapped and plugged port for pressure monitoring.
- Adjust the outlet pressure range if needed (only applicable for high range option).
- Ensure that the valve is properly sealed and all connections are tight.
- Test the valve by turning on the water supply and checking for proper water pressure reduction.
- Refer to the provided repair kits and instructions for any maintenance or repair needs.
Model 500XL3
Water Pressure Reducing Valve
Application
Zurn Wilkins model 500XL3 designed for installation on potable water lines to
reduce high inlet pressure to a lower outlet pressure. The patented integral
venturi enables the valve to have best-in-class flow performance. The high
flow capacity makes this device most suitable for commercial plumbing systems
and Industrial water lines. The direct acting integral by-pass design prevents
buildup of excessive system pressure caused by thermal expan-sion (1″ – 2″).
The balanced piston design enables the pressure reducing valve to react in a
smooth and responsive manner to changes in system flow demand, while at the
same time, provid-ing protection from inlet pressure changes. Includes a
removable cartridge and corrosion resistant materials.
Standards Compliance
- ASSE® Listed 1003
- cUPC® Listed
- CSA® Certified B356
- Meets the requirements of NSF/ANSI/CAN 61 & 372
Materials
- Main valve body Low lead cast bronze ASTM B806
- Bell housing Low lead cast bronze ASTM B806
- Cast bronze ASTM B584 (2-1/2″ – 4″)
- Fasteners Stainless steel, 300 series
- Stem Stainless steel, 300 series
- Plunger Stainless steel, 300 series
- Low lead cast bronze ASTM B806 (2-1/2″ – 4″)
- Elastomers Buna Nitrile (FDA approved)
- EPDM (FDA approved)
- Springs Stainless steel, 300 series
- Chrome Silicon, Epoxy Coated (2-1/2″ – 4″)
- Cartridge Noryl™
Features
- Sizes: 1″, 1 1/4″, 1 1/2″, 2″, 2-1/2″, 3″, 4″
- Maximum working water pressure 400 psi
- Maximum working water temperature 140° F
- Reduced pressure range 25 psi to 75 psi
- Factory preset 50 psi
- Threaded connections (FNPT) ANSI B1.20.1
- Copper connections (Female) ANSI B16.22
- Flanged connections ANSI B16.24
-
US & FOREIGN PAT. PENDING
Options (Suffixes can be combined)
- standard with single union FNPT inlet x FNPT outlet (1” thru 2”) or less union (2-1/2″ – 3″)
- DU – double union FNPT x FNPT (1″ – 2″)
- DUC – double union Copper Sweat x Sweat (1″ – 2″)
- C – single union Copper Sweat x FNPT (1″ – 2″)
- F – Flanged Class 150 (2-1/2″ – 4″)
- HR – high range, outlet adjust from 75 psi to 125 psi
- Y – with lead-free bronze “Y” strainer on inlet (1″ – 3″)
- FY with ductile iron “Y” type flanged strainer, fusion epoxy coated, inside and out (2-1/2″ – 4″)
- G – tapped and plugged with gauge
Accessories
- Repair kits
- By-Pass Kit : (Fittings included). *See Inst. on page 3 1-500XL3BPK – 1″-500XL3HRBPK (used with 2-1/2″ to 4″ 500XL3F)
- By-Pass Valve : (Fittings not included, to be plumbed in parallel). *See Inst. on page 3 1-500XL3DUBP & 1-500XL3DUHRBP (used with 2-1/2″ – 3″ 500XL3)
Dimensions & Weights (do not include pkg.)
SIZE| ****
CONNECTIONS
| DIMENSIONS (approximate)| WEIGHT
---|---|---|---
A| B| C| D
in.| mm| in.| mm| in.| mm| in.| mm| in.| mm| lbs.| kg.
1| 25| SINGLE UNION| 4 5/8| 117| 5 3/8| 137| 1 3/8| 35| 2 3/4| 70| 3| 1.4
1| 25| LESS UNION| 3 3/4| 95| 5 3/8| 137| 1 3/8| 35| 2 3/4| 70| 2.6| 1.2
1| 25| DOUBLE UNION| 5 1/2| 140| 5 3/8| 137| 1 3/8| 35| 2 3/4| 70| 3.4| 1.5
1| 25| SINGLE UNION W/STRAINER| 9| 228| 5 3/8| 137| 1 3/8| 35| 2 3/4| 70| 4.8|
2.2
1 1/4| 32| SINGLE UNION| 5| 127| 6 7/16| 164| 1 3/16| 30| 2 3/4| 70| 3.8| 1.7
1 1/4| 32| LESS UNION| 3 7/8| 98| 6 7/16| 164| 1 3/16| 30| 2 3/4| 70| 3.1| 1.4
1 1/4| 32| DOUBLE UNION| 6 1/8| 156| 6 7/16| 164| 1 3/16| 30| 2 3/4| 70| 4.5|
2.0
1 1/4| 32| SINGLE UNION W/STRAINER| 10 1/2| 267| 6 7/16| 164| 1 3/16| 30| 2
3/4| 70| 6.5| 2.9
1 1/2| 40| SINGLE UNION| 7 1/16| 179| 7 1/2| 191| 1 3/4| 44| 4 9/16| 116| 9.6|
4.4
1 1/2| 40| LESS UNION| 5 13/16| 148| 7 1/2| 191| 1 3/4| 44| 4 9/16| 116| 8.5|
3.9
1 1/2| 40| DOUBLE UNION| 8 5/16| 211| 7 1/2| 191| 1 3/4| 44| 4 9/16| 116|
10.7| 4.9
1 1/2| 40| SINGLE UNION W/STRAINER| 13 11/16| 347| 7 1/2| 191| 1 3/4| 44| 4
9/16| 116| 13.1| 6
2| 50| SINGLE UNION| 7 3/16| 183| 9 1/4| 235| 1 3/4| 44| 4 9/16| 116| 11.3|
5.1
2| 50| LESS UNION| 6| 152| 9 1/4| 235| 1 3/4| 44| 4 9/16| 116| 9.8| 4.4
2| 50| DOUBLE UNION| 8 3/8| 213| 9 1/4| 235| 1 3/4| 44| 4 9/16| 116| 12.9| 5.9
2| 50| SINGLE UNION W/STRAINER| 15 1/4| 133| 9 1/4| 235| 1 3/4| 44| 4 9/16|
116| 17.3| 7.8
2 1/2| 65| LESS UNION| 8 13/16| 224| 10 1/4| 260| 2 5/8| 67| 7 5/16| 186| 25|
11.3
2 1/2| 65| FLANGED| 10 3/8| 264| 10 1/4| 260| 2 5/8| 67| 7 5/16| 186| 35.6|
16.1
2 1/2| 65| LESS UNION W/SXL STRAINER| 19 3/8| 492| 10 1/4| 260| 2 5/8| 67| 7
5/16| 186| 34.3| 15.5
3| 80| LESS UNION| 8 13/16| 224| 10 1/4| 260| 2 13/16| 71| 7 5/16| 186| 27.1|
12.3
3| 80| FLANGED| 11| 279| 10 1/4| 260| 2 13/16| 71| 7 5/16| 186| 40.7| 18.5
3| 80| LESS UNION W/SXL STRAINER| 20| 507| 10 1/4| 260| 2 13/16| 71| 7 5/16|
186| 41.1| 18.7
4| 100| FLANGED| 11 7/8| 302| 10 1/4| 260| 4 1/2| 114| 7 5/16| 186| 48.1| 21.9
1″ MODEL 500XL3 (STANDARD AND METRIC)
1-1/4″
MODEL 500XL3 (STANDARD AND METRIC) 
1-1/2″ MODEL 500XL3 (STANDARD AND METRIC) 2″ MODEL 500XL3 (STANDARD AND METRIC)
FLOW RATE (l/s) 
2-1/2″ MODEL 500XL3 (STANDARD AND METRIC)
FLOW RATE (l/s) 
3″ MODEL 500XL3 (STANDARD AND METRIC)
4″
MODEL 500XL3 (STANDARD AND METRIC) FLOW RATE (l/s)
Typical Installation
Local codes shall govern installation requirements. Unless otherwise
specified, the assembly shall be mounted in accordance with the manufacturer’s
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 500XL3 may be installed in any position. Multiple installations in
series are required when the desired pressure reduction is more than 3 to 1
(i.e. 150 psi inlet reduced to 50 psi outlet). If using a
2-1/2″, 3″ or 4″ valve at low flows and higher pressure reduction ratios above
3 to 1, you may need a low flow bypass to handle flows under 10 gpm. Set the
bypass valve approximately 5 to 10 psi higher than the large valve. This is
easily accomplished with the 500XL3F and the low flow bypass kit, 1-500XL3BPK,
or the 500XL3 and 1-500XL3DUBP. Due to highly efficient flow performance, only
use the 500XL3BPK or 500XL3DUBP as low flow bypass valve options.
Caution: Anytime a pressure reducing valve is adjusted, a pressure gauge must be used downstream to verify correct pressure setting. Do not bottom-out adjustment bolt on bell housing.
TYPICAL INSTALLATION
SIZE
|
CONNECTIONS
| DIMENSIONS| WEIGHT
---|---|---|---
E| F| (W/FSC STRAINER)
in| mm| in.| mm| in.| mm| lbs| kg
2 1/2| 65| FLANGED| 20.3| 516| 11.3| 287| 70.6| 32.1
3| 80| FLANGED| 21.6| 549| 11.7| 297| 85.7| 39
4| 100| FLANGED| 26.9| 760| 12.1| 306| 109.1| 49.4
Specifications
The Pressure Reducing Valve shall be certified to NSF/ANSI/CAN 61 & 372, consisting of a low lead cast bronze body and bronze bell housing, and a bolt to adjust the downstream pressure. The bronze bell housing shall be threaded to the body on the 1″-2″ sizes or affixed to the body with stainless steel bolts on the 2-1/2″, 3″ or 4″ sizes. The assembly shall be of the balanced piston design and shall reduce pressure in both flow and no-flow conditions with integral venturi for improved flow performance. The assembly shall be accessible for maintenance without having to remove the body from the line. Shall include a removable cartridge and corrosion resistant materials. The Pressure Reducing Valve shall be a ZURN WILKINS Model 500XL3.
Zurn Industries, LLC | Wilkins
1747 Commerce Way, Paso Robles, CA U.S.A. 93446 Ph.
855-663-9876, Fax
805-238-5766
In Canada | Zurn Industries Limited
7900 Goreway Drive, Unit 10, Brampton, Ontario L6T 5W6,
877-892-5216
www.zurn.com