METU CLAMP 250MM

Description

METU Clamp 250mm is a high-quality metal duct clamp designed for making secure, airtight connections between ducting components at the 250mm diameter size commonly found in commercial-scale grow room ventilation systems. We have been recommending quality ducting clamps to UK growers since 2017 as an essential component of any well-built extraction system — a proper mechanical clamp connection is far more reliable and airtight than tape alone, especially in high-humidity grow room environments where tape adhesives can fail over time.

Why Proper Ducting Clamps Are Essential for Extract Performance

The performance of your extraction system is entirely dependent on the integrity of the duct connections throughout the airflow path. An air leak at a connection point between fan and carbon filter, or between filter and Phonic Trap ducting, does two things simultaneously: it allows unfiltered, odour-laden air to escape into your grow room or building, and it reduces the effective air volume being drawn through the filter, reducing odour removal efficiency. At 250mm diameter, the air volumes involved are substantial — a fan rated at 2000+ m³/hr creates enough pressure differential to make any poorly sealed connection a significant leak point. The METU Clamp provides a positive mechanical grip around the duct circumference that tightens evenly as the clamp is tightened, creating a uniform seal across the entire joint. Combined with a PTFE or foam gasket tape wrap on the male duct end, a METU Clamp creates a connection that will remain reliable for the full life of the installation.

How to Install the METU Clamp 250mm

Slide the clamp over the first duct section before inserting it into the collar of the adjacent component. Push the duct sections together fully until the insertion depth is correct. Position the METU Clamp over the joint so that it bridges the two duct components equally. Tighten the clamp screw evenly — do not overtighten to the point of deforming the duct. Check the joint for gaps or movement, then apply duct sealant or tape if additional sealing is required for critical odour containment applications. Inspect clamps periodically and re-tighten if any vibration loosening is detected during operation.

The METU Clamp 250mm is compatible with all standard 250mm round ducting, fans, filters, and acoustic duct components. Browse our full ventilation accessories range for all the clamps, tape, hangers, and connectors needed to build a professional extraction system.