null Skip to main content
Caleffi 574056A : FlowShield® RP Backflow Preventer, 3/4" Press, ASSE 1013, Lead-Free

Caleffi 574056A : FlowShield® RP Backflow Preventer, 3/4" Press, ASSE 1013, Lead-Free

Caleffi

MSRP: $575.00
Your Price:  $402.50
(You save $172.50 )
(No reviews yet) Write a Review
SKU:
574056A
Condition:
New
Availability:
Ships in 1 Week
Adding to cart… The item has been added

The Caleffi 574056A is a FlowShield RP testable reduced-pressure-principle backflow preventer with a 3/4 in press connection, listed to ASSE 1013 for high-hazard cross-connection protection of potable water systems.

Product data compiled from Caleffi North America technical documentation. Last reviewed July 2026.

FunctionRP Backflow Preventer
ListingASSE 1013
Connection3/4 in press
BodyDZR Low-Lead Brass
Max Pressure150 psi
Warranty2 Years

Key Features

ASSE 1013 High-Hazard Protection

Listed to ASSE 1013 for high-hazard cross-connections; also CSA B64.4, AWWA C511 and ICC-ES certified.

Reduced-Pressure Zone

Two independent check valves and a differential relief valve create a monitored reduced-pressure zone between the mains and the system.

Four Top-Mounted Test Ports

All four test cocks are on top for easy field testing regardless of mounting orientation.

Union Body & Rebuildable

Union body connections and a single rebuild kit make service fast; ships complete with discharge air gap.

Lead-Free / NSF Certified

DZR low-lead brass, certified to NSF/ANSI/CAN 61 and NSF/ANSI/CAN 372 for potable water.

3/4 In Press Connection

3/4 in press connection.

Technical Data

FunctionReduced pressure principle (RP) backflow preventer
ASSE listingASSE 1013
Connection3/4 in press
Body materialDZR low-lead brass
Maximum operating pressure150 psi
Lead-free complianceNSF/ANSI/CAN 61 and NSF/ANSI/CAN 372

Documentation

Related Products

Caleffi 574050A3/4 ASSE 1013 RP Backflow PreventerCaleffi 574004A1/2 ASSE 1013 RP Backflow PreventerCaleffi 574006A1 ASSE 1013 RP Backflow PreventerCaleffi 304050A3/4 Vacuum Relief Valve

Frequently Asked Questions

What is the Caleffi 574056A used for?

It is a reduced-pressure-principle (RP) backflow preventer for high-hazard cross-connections, protecting the potable water supply from contamination by backflow or back-siphonage.

What is the 574056A certified to?

It is listed to ASSE 1013 and is ICC-ES certified to CSA B64.4, AWWA C511, NSF/ANSI/CAN 61 and NSF/ANSI/CAN 372 low-lead requirements.

Is this backflow preventer testable and rebuildable?

Yes. It has four top-mounted test ports for field testing and rebuilds with a single kit; it ships complete with a discharge air gap.

Is it lead-free?

Yes. The body is DZR low-lead brass compliant with NSF/ANSI/CAN 372.

What connection size is the 574056A?

This model has a 3/4 in press connection.

2-Year Limited Warranty. Backed by Caleffi North America's limited warranty against defects in material and workmanship for two years from date of shipment. See Caleffi's limited warranty for full terms.
Type:
Reduced Pressure Principle Backflow Preventer
Series:
FlowShield
ASSE Standard:
ASSE 1013
Connection Type:
Press
Connection Size:
3/4 in
!