Unicount Koax OT 2" – Water Meter without T-Fitting for Nussbaum Optivis

Water meter without T-fitting for Nussbaum Optivis in-wall installation systems

The Unicount Koax OT 2" is the variant without T-fitting, designed for direct integration into Nussbaum Optivis in-wall installation systems, with a fixing centre distance of 430 mm. The dedicated fixing sets with spacer sleeves ensure flush alignment and lasting stability. The connection plates incorporate vibration-dampening elements for effective reduction of flow-related noise.

Key benefits at a glance

• Fixing centres 430 mm — full mechanical compatibility with Nussbaum Optivis
• Spacer sleeves for precise flush alignment
• Cost-efficient solution — without T-fittings when already installed
• Compatible with Radio or M-Bus reading — choice made at commissioning
• Acoustic insulation compliant with group I per ISO 3822
• Universal G 3/4" interfaces — no additional components required

Application

This OT model is recommended when T-fittings are already present or ordered separately. The system remains neutral during shell construction, allowing the reading technology to be selected only at commissioning — offering maximum flexibility within the Nussbaum Optivis ecosystem.

Frequently asked questions

What is the difference between the OT and T models?

The T model includes 2 T-fittings and 6 fixing sets. The OT model (without T) does not include T-fittings and is delivered with only 4 fixing sets — ideal when T-fittings are already in place or supplied separately.

What is the difference with the Geberit OT models?

This model is designed for the Nussbaum Optivis system with 430 mm fixing centres and specific spacer sleeves. Geberit models have different fixing centres: 248 mm for GIS and 420 mm for DUOFIX.

Are measuring capsules included?

No. Measuring capsules are sold separately. Compatible with Koax 2-inch multijet meters Qn 1.5 m³/h.