Combined Indicators & Relief Valves

Combined Indicators & Relief Valves are designed for places with limited spaces, requiring one hole to be fitted to equipment or containers. As this indicator is reversible, the sensor paper will change from blue to pink when humidity increases, reverting to blue as humidity returns to normal. Desiccant cartridges are additional units, also known as static desiccators. These desiccators are optional tools that can fit most of our combined indicators & relief valves, adsorbing moisture entering the equipment during its use.

Stream Peak offers Combined Indicators & Relief Valves in 4 different models:

BLD9720/01-06 – ¾” Thread Humi-Valve

The ¾” Thread Humi-Valve is a lightweight, tamperproof and rugged valve designed with a separate path to the humidity indicator. As corrosion-resistant material is applied to the valve, field maintenance is not required. The unit also features a manual release push button to allow users to open the containers with ease. The ¾” Thread Humi-Valve is packaged together with a washer, hex nut, and gasket upon purchase.

BLD9404-M24 Thread Pressure Relief & Humidity Indicator Unit

Incorporating a Two-Way Breather Valve and Humidity Indicator has resulted in the Humidity Indicator and Relief Valve having a separate and distinct setting for both pressure and vacuum relief. With only one hole required during installation, this makes the Humidity Indicator and Relief Valve ideal when space is limited. It is designed to mount humidity-controlled enclosures subjected to air transportation and moisture-sensitive electronic equipment to monitor and detect changes in space’s humidity. The Combined Relief Valve & Indicator is irreversible. The colour of the sensor paper would change colour from blue to pink when humidity increases and revert to blue when the humidity returns to normal. Static desiccators can be fitting along with a desiccant cartridge to prevent moisture from entering the equipment during use.

BLD8555/01-05 – M24 Thread Pressure Relief & Humidity Indicator Unit

The M24 Thread Pressure Relief & Humidity Indicator Unit is a relief valve that can perform an additional function apart from monitoring humidity and relieving pressure. By installing a desiccator, this unit is capable of R.F screening continuity as well.

BLD1041 -Humidity Indicator Unit

A 1″ pressure relief & humidity indicator unit. Please contact us for more details on this product.

Click here to view other Humidity Indicators available and feel free to read an article about Humidity Indicator Cards here.

Selection Guide

  • BLD9720/01-06 – ¾” Thread Humi-Valve
  • BLD9404-M24 Thread Pressure Relief & Humidity Indicator Unit
  • BLD8555/01-05 – M24 Thread Pressure Relief & Humidity Indicator Unit
  • BLD1041 -Humidity Indicator Unit