Bubble Tight Damper

Overview
MODEL:

BTD-R

BTD-S

The Gmcair model BTD series are bubble-tight dampers that are designed for isolation applications. Bubble-tight means the damper has the lowest possible leakage rating. The silicone blade seal and double gland axle seals provide bubble-tight performance up to 7000 Pa differential pressure.

The Gmcair BTD dampers are manufactured under a quality assurance program that meets all the requirements of ASME NQA-1, “Quality Assurance Program Requirements for Nuclear Facilities”. All welding procedures, welders and welder operators are qualified in accordance with ASME Boiler and Pressure Vessel Code, Section IX.

FEATURES

• Robust construction

• Continuously welded at all pressure barrier points

• Manual, pneumatic or electric operation

• Pre-drilled bolt holes in out-turned standing flanges

APPLICATIONS

• Hospital Isolation Suites

• Biohazard Facilities

• Pharmaceutical Facilities

• Microelectronic Manufacturing

• Laboratories

• Food Processing Areas

• Chemical Process Facilities

• Nuclear Power Plants

• Cleanrooms

• Marine Offshore Outdoor

• HVAC systems

PERFORMANCE RANGE

• Maximum Pressure : 7000 Pa

• Maximum Velocity : 33 m/s

• Minimum Temperature : -70 °C

• Maximum Temperature : 250 °C