Torex

Torex

The NAF Torex, High-Performance butterfly valve is available with either metal-to-metal or soft seats. Due to its unique design and triple offset, it closes extremely tight. It can be used both as a control valve and as a shut-off valve.This valve can be supplied in either wafer or lugged versions. The valves are also available in other materials e.g. Carbon steel, and Titanium, other stainless steel materials and in Fire-safe design.

Brand: NAF
Category: Butterfly & Offset
Valve Size 3" to 28"
Pressure Class Standard ASME B16.34
Pressure Class Range Class 150, 300
Body Wafer
End Connections Lugged, Integral Flange, Flangeless
Face-to-Face Standard API 609
Bonnet Body Integral
Packing Standard O-Ring, Stuffing Box, Fugitive Emissions, Live-Loaded, Fire-Safe
Configuration Triple-Offset
Trim Contoured Eccentric-Cammed Disc
Trim Characteristics Linear
Seating Metal-to-Metal & Soft
Shut-Off Classification ANSI FCI 70-2 Class V (Metal-Seated), ISO 5208 Rate A (Soft-Seated)

Triple offset design enables the valve closure to be extremely tight

Small offset results in low operating torque in all control positions, allowing for low-torque actuators to be used

Special disc profile (segment of a toroid) eliminates abrasive sliding action when the disc is opening and closing

High mean value of seating angle ensures the disc closes without sticking in the closed position, virtually eliminating any disk popping

NAF standard for mounting the actuator simplifies installation and results in a compact valve/actuator unit

Certifications Canadian Registration Number (CRN)
PED Directive 97/23/EC
Design standards API 609 – Butterfly Valves: Double-Flanged, Lug and Wafer
ASME B16.5 – Pipe Flanges & Flanged Fittings
ASME B16.34 – Valve Flanged, Threaded, and Welding End
ASME SA Materials
ASTM A Materials
Quality ISO 9001:2008
ATEX QAN
IECEX QAR