characteristics of the Nozzle
Arflu Nozzle check valves have been designed to provide reliable backflow prevention for the Petrochemical, Gas & Water divisions.
Arflu’s Engineering department has create Nozzle check valve with dymanic quick closing which reduces the flow return speed. The Axial movement of the disc produces a streamlineflow with venturi effect which reduces the pressure drop with minimal seat leakage and with minimum turbulences.
Our design needs only a very low flow to completely open the valve and guarantees the highest fluid dynamic performances reacting fast to flow alteration.
COMPETITIVE ADVANTAGES
Arflu Nozzle check valves are available with multiple spring torques increasing considerably its purposes. it has also been conceived to have a really low maintenance costs and high serviceability.
DESIGN FEATURES
DYNAMIC QUICK CLOSING
Arflu Nozzle Check valves are design to reduce the fluid flow speed during the closure.
MAINTENANCE AND SERVICEABILITY
Arflu valves are designed and developed to have the lowest possible maintenance. If any repair is required, these can easily be accessed without any special tools.
FLUID HAMMER REDUCTION
Thanks to its special design of the disc there is an important fluid hammer reduction which also depends on the spring torque.
DISC AXIAL MOVEMENT
The inner shape produces a streamlined flow with Venturi effect which reduces considerably the pressure drop.
DISC SHORT STROKE
All of our Nozzle check valves are developed to have a short stroke of the disc which also means a reduction of the body dimensions which also signifies less material needed.
MANUFACTURING CAPACITY
Specialized in projects, Arflu has a great manufacturing capacity being able to produce a wide volume of all kind of valves.
TECHNICAL INFORMATION
ARFLU MANUFACTURING RANGE
ARFLU, is known for the extensive manufacturing range, we manufacture large number of valves in almost all sizes and materials. If you do not find the valve you need in the box attached, please contact our sales representatives and we will study the feasibility of producing in other dimensions.
SIZE
construction
ends
asme class
international standards
INTERNATIONAL DESIGN STANDARDS
Arflu Nozzle Check valves are designed and manufactured according to the following International codes. See below some of them.
DESIGN AND MANUFACTURING:
ASME B 16.34: Valves-Flanged, Threaded, and Welding End.
EN12516: Industrial valves. Shell design strength. Tabulation method for steel valve shells
INSPECTION AND TEST:
API 598: Valve Inspection and Testing.
EN12516: Industrial valves. Shell design strength. Tabulation method for steel valve shells
FLANGE DIMENSION:
EN 1092-1: Flanges and their joints. Circular flanges for pipes, valves, fittings and accessories, PN designated. Steel flanges.
ISO 7005-1: Steel flanges for industrial and general service piping systems.
BS 4504 Sect.3.2: Circular flanges for pipes, valves and fittings (PN designated). Steel, cast iron and copper alloy flanges. Specification for cast iron flanges.
ASME B16.1: Cast Iron Pipe Flanges and Flanged Fittings.
ASME B16.5: Pipe Flanges and Flanged Fittings.
* Other standards/materials under request
