Product Overview

Product range
5353H series Pre-adjustable pressure reducing valve with or without pressure gauge and NPT female threaded union connections........................... .
sizes ½", ¾", 1", 1¼" , 1½" & 2"
5355H series Pre-adjustable pressure reducing valve with or without pressure gauge and union PEX expansion connections..........................size ¾"
5356H series Pre-adjustable pressure reducing valve with or without pressure gauge and union press connections...............................sizes ¾" & 1"
5357H series Pre-adjustable pressure reducing valve with or without pressure gauge and union PEX crimp connections.......................sizes ¾" & 1"
5359H series Pre-adjustable pressure reducing valve with or without pressure gauge and union sweat connections....................................................
sizes ½", ¾", 1" & 1¼", 1½" & 2"
01265/19 NA
PresCal™
Pre-adjustable pressure reducing valves
535H series
Function
Pressure reducing valves are devices which, when installed on water
systems, reduce and stabilize the pressure of the water entering from
the water supply main. This pressure, in general, is too high and
variable for domestic systems to operate correctly.
The 535H series pressure reducing valves, ideal for residential and
commercial applications, feature a dial indicator with direct readout
allowing easy pressure pre-adjustment. After installation, the valve will
control at the pre-adjusted pressure setting.
The valve is constructed of DZR low-lead forged brass and incorporates
a unique noise reducing and high flow seat design, is easily serviced with
a replaceable cartridge and has an integral stainless steel filter (35 mesh),
suitable for water systems that may contain sediment and debris.
The valve is ICC-ES certified to ASSE 1003, CSA B356, NSF 61, NSF
372, low lead laws and listed by ICC-ES. It meets codes IPC, IRC, UPC
and NPC for use in accordance with the US and Canadian plumbing
codes.
003
FM 21654
ASSE 1003
NSF 61
Technical specications
Materials - body: DZR low-lead forged brass
EN 12165 CW724R
- cover: glass reinforced nylon PA66M40/1l
- control stem: stainless steel EN 10088-3 (AISI 303)
- moving parts: DZR low-lead brass
EN 12165 CW724R
- diaphragm: peroxide-cured EPDM
- seals: peroxide-cured EPDM
- compensation piston rings: PTFE
- filter: stainless steel EN 10088-2 (AISI 304)
- seat: stainless steel EN 10088-3 (AISI 303)
- shuttle: PPSG40
Performance
Suitable fluids: water
Max. working pressure: 300 psi (20 bar)
Downstream pressure setting range: 15 - 90 psi (1 - 6 bar)
Factory setting: 45 psi (3 bar)
Maximum working temperature: 180°F (80°C)
Flow rates at 6 fps (gpm): ½": 7.3; ¾": 12.5; 1": 19.0; 1¼": 34.0;
1½": 44.0; 2": 70.0
Pressure gauge scale: 0 - 100 psi (0 - 7 bar)
Filter mesh size: 0.51 mm (35 mesh)
Certications
1. Complies with codes IPC, IRC, UPC and NPC.
ICC-ES certified to ASSE 1003, CSA B356
(R2015), and NSF/ANSI 61, file PMG-1356.
2. NSF/ANSI 372, Drinking Water System
Components-Lead Content Reduction of Lead
in Drinking Water Act, California Health and Safety
Code 116875 S.3874, Reduction in Drinking Water
Act, Vermont Act 193 - The Lead in Plumbing
Supplies Law and Maryland’s Lead Free Law HB.372,
certified by ICC-ES, file PMG-1360.
3. PEX crimp fittings certified to ASTM F 1807.
4. PEX expansion fittings certified to ASTM F 1960.
Connections
Main connections: ½", ¾", 1", 1¼", 1½" & 2" NPT female and
sweat union
¾" PEX expansion union
¾" & 1" press and PEX crimp union
Replaces 01265/17 NA