NPT 3/4”-14 weldolet for 2” pipes - WOL-34NS

Description
Rheonics WOL-34NS accessory is a NPT weldolet used for installation of SR sensors in 2” pipes. This weldolet is designed to ensure that the Rheonics SR-sensors sensing element is fully immersed in the flow, thus providing the correct measurement conditions using this type of installation.
Specifications | |
---|---|
Sensor connection | NPT 3/4”-14 |
Installation requirement | Welding |
Material | 316L |
Maximum Pressure | 500 bar (7500 psi) |
Why use this part?
This part is often used for sensors installation on a line or tank.
Commercially available weldolets are not well suited for the standard 3/4“ NPT version of SRV or SRD as they tend to create large dead zone around the sensing element, thus giving unreliable measurements.
WOL-34NS has a specifically designed with shortened thread and height, ideal for 3/4“ NPT version of SRV and SRD.
Plugging of the gaps (yellow highlighted in figure below) affects the sensing element. This affects the measurement accuracy and stability.

Installation Instructions

- Weld according to ANSI/AWS D10.4 recommendation standard for Austenitic Stainless Steel pipes.
- Suitable for SRV and SRD sensors.
- Weld only on 2”pipes ANSI standards (60.3 OD).
Support articles
SRV NPT: Overview of the SRV NPT 3/4”-14 variant, installation guidelines, instructions, special considerations and available accessories.
SRD NPT: Overview of the SRD NPT 3/4”-14 variant, installation guidelines, instructions, special considerations and available accessories.
Download files

Drawing (dwg. and pdf.) of the WOL-34NS, and CAD models (stp.) of SRV and SRD NPT mounted on the accessory.
Compatible with products
Sensor | Name | Variant |
---|---|---|
SRV - Inline Viscosity Meter | NPT 3/4” - 14 | |
SRD - Inline Density and Viscosity Meter | NPT 3/4” - 14 |