Metal Seal Weldolet for G1/2” Type-SR sensor probe - HAW-12G-MTK


Description
Rheonics HAW-12G-MTK accessory is a weldolet adapter for the SRV and SRD sensor probes with 1/2” G thread (-X1-12G). These weldolets are designed for a flush installation in pipe or tank walls while ensuring the sensing element is fully immersed in the flow. This adapter has a metal-to-metal seal.
Specifications | |
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Sensor connection | G 1/2" Thread |
Installation requirement | Welding |
Material | 316L |
Sealing | Metal-Metal |
Why use this part?
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Use this part for flush installation in line or tank, this means no dead zones are created.
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Avoid stagnation zones around the sensing element.
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Use for installation in walls with a max. thickness of 10mm. For thicker walls a cut in the wall is required to mantain the limit thickness.
Installation instructions

- Weld according to ANSI/AWS D10.4 recommendation standard for Austenitic Stainless Steel pipes.
- Suitable for SRV and SRD sensors.
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Weld for wall thinner than 10mm.
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Recommended position of the weep hole at the lowest point or drainable orientation.
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For SRD, G1/2” installation is only recommended for applications where fluid is at the same or near the ambient temperature. Read more here.
- Recommended torque for Type-SR probe installation in weldolet is 18 Nm.
- Pressure rating is limited by sensor probe specifications and welding.
Support articles
SRV-X1-12G: Guidance on the installation of the G1/2” SRV sensor (SRV-X1-12G).
SRD-X1-12G: Guidance on the installation of the G1/2” SRD sensor (SRD-X1-12G).
Download files
HAW-12G-MTK
Drawing (dwg and pdf) of the HAW-12G-MTK, and CAD models (stp) of SRV and SRD mounted on the accessory.
Compatible with products
Sensor | Name | Variant |
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![]() | SRV - Inline Viscosity Meter | G1/2" |
![]() | SRD - Inline Density and Viscosity Meter | G1/2" |