*myagriexpo

R-20

R-20

Product catalog summary

Overview of R-20 Diaphragm Valves
The R-20 series is a line of diaphragm-operated hydraulic control valves made from composite materials, designed for use in water transmission, landscape, and irrigation systems. These valves operate at a working pressure of up to 10 bar and feature an innovative elliptic-shaped diaphragm compatible with various control pilots, solenoids, and accessories. The series is available in sizes up to 8 inches, with a separate double chamber for 6-8 inch valves.

Unique Features

Accurate, rapid, reliable, and quiet operation.
Available in sizes up to 8 inches.
Separate double chamber for larger valves (6-8 inches).

Applications and Benefits

Excellent regulation for flow rates from 500 l/h to maximum flow.
Operational from low pressure up to 16 bar.
Quick-reaction operation with silent performance and low head losses.
Wide range of connections: flanged, threaded, and grooved.
Simple mechanism with easy inline maintenance.

Valve Types and Functions

R-20 PR/PR3W: Pressure Reducing Valve that maintains constant downstream pressure.
R-20 PS/PS3W/PSR: Pressure Sustaining/Relief Valve that maintains minimum upstream pressure and releases excess flow.
R-20 PRPS/PRPS3W: Pressure Sustaining Reducing Valve that manages both upstream and downstream pressures.
R-20 EL/EL3W: Electric Control Valve for remote operation via solenoids.
R-20 FL/FLDI3W/AL3W: Level Control Valve for various water reservoir needs.
R-20 QR3W: Quick Reacting Pressure Relief Valve that opens instantly to high pressure.

Technical Specifications

Suitable for sizes 1½" to 8" with various end connections.
Working pressure range from 0.4 to 10 bar, with specific models supporting up to 16 bar.
Diaphragm models available for low pressure (0.2 - 5 bar) and default (0.4 - 10 bar) settings.

Performance and Maintenance

Designed to reduce cavitation damage and ensure durable operation over time.
User-friendly design with simple maintenance requirements.

Flow and Pressure Charts
Flow charts provided illustrate the relationship between flow rate and pressure loss across different valve sizes and configurations.

Catalog excerpts

Agriculture Hydraulic Control Valves R-20 Diaphragm Valves | PN10 Redefining Reliability

Open the catalog to page 1

ptix Hydraulic Control Valves AGRICULTURE DIAPHRAGM VALVES [ PN10]R-20 SeriesAccurate, Rapid, Reliable and Quiet Silent operation Low head losses Wide range of connections: Flanged, Threaded and Grooved Simple mechanism Easy inline maintenance User-friendly The R-20 series is a line of composite material, diaphragm-operated hydraulic control valves with a working pressure up to 10 bar. The valves are suitable for installation on water transmission, landscape and irrigation systems. The R-20 series has an innovative elliptic shaped diaphragm that integrates well with a wide variety of regulating...

Open the catalog to page 2

Product Range R-20 PR/PR3W Pressure Reducing Valve Maintains a constant downstream pressure regardless of upstream pressure or flow rate fluctuations. The set point of reduced pressure is adjustable by a 2-way or 3-way pilot valve. A spring-loaded diaphragm inside the pilot reacts according to the downstream pressure changes. The pressure fluctuations are compensated by gradual opening and closing of the valve. R-20 PS/PS3W/PSR Pressure Sustaining/ Relief Valve The pressure sustaining component maintains the minimum preset upstream pressure regardless of changes in the downstream pressure or...

Open the catalog to page 3

ptix Hydraulic Control Valves Technical Information Technical SpecificationsSize 1^" (40 mm) Hydraulic Performance Kv= Q /Vap Where Q=Flow Rate (m3/h), AP=Pressure loss across the valve (bar), when fully open Diaphragm Working Pressure Diaphragm Model | Working Pressure Low pressure 0.2 - 5 (bar) Default 0.4 - 10 (bar) * Other diaphragm materials available on request 4k A.R.I. OPTIMAL FLOW SOLUTIONS A.R.I. FLOW CONTROL ACCESSORIES Ltd. | www.arivalves.com | [email protected] | Tel. 972-4-6761988

Open the catalog to page 4

R-20

R-20

Catalog excerpts

All Arivalves catalogs and technical brochures