Aerospace

Aerospace emission control devices

Chemteq manufactures area monitors as well as filter change indicators and filters with end-of-service life indicators. Applications include hydrazines, MIL-87930, H-70 and nitrogen dioxide.

Filter Change Indicators

These filter change indicators, suitable for drum-type filters are; BTI , BTI Inline, BTI with auxiliary filter trap (suitable for highly toxic substances such as hydrazines). BTI 2 and BTI 3.

Filter Change Indicator Stickers

The BTIS are filter change indicators stickers for ductless hood filters, the BTIS B are leak detectors suitable for chemical cabinets and chemical transport vehicles .

We also manufacture three different sizes of filters with end-of-service life indicators for hydrazines, MIL-87930, H-70 and nitrogen dioxide.

Custom cut colorimetric indicators are available for wide range of chemicals including hydrazines, MIL-87930, H-70 and nitrogen dioxide.

Our indicators have shelf-life range between one year and two years, plus service life range between one year and two years. Sun light has no effect on the hydrazine indicators and they are waterproof.

Products Features:

Filter Change Indicators
a	Diameter and threading	BTI: 1”. Inlet threading 0.75” MNPT BTI-Inline: 1”. Inlet & 0utlet threading 0.75” MNPT BTI AFT*: 1” BTI2: 2”. Inlet threading 1.5” MNPT BTI3: 3”. Inlet threading 2.5” MNPT
b	Hight	BTI: 3.5” BTI-Inline: 3.5” BTI AFT*: 5.1” BTI2: 4.5” BTI3: 4.5”
c	Operating temperatures range:	-20 – 4^oC to 50 – 65^oC (-4 – 39^oF to 122 -149^oF).
d	Operating humidity:	5% RH to 95%RH
f	Shelf-life range:	1-2 years
g	Service life range:	1-2 years
h	Allowable fluids:	Gases and vapors

* Filter change indicator with auxiliary filter trap

2. Filter Change Indicator Stickers
a	Diameter	Area Monitors: 1.5” BTIS: 1.25” BTIS B*: 1.5”
b	Thickness	Area Monitors: 0.12” BTIS: 0.12” BTIS B***: 0.12”
c	Operating temperatures range:	-20 – 4^oC to 50 – 65^oC (-4 – 39^oF to 122 -149^oF).
d	Operating humidity:	5% RH to 95%RH
f	Shelf-life range:	1-2 years
g	Service life range:	1-2 years
h	Allowable fluids:	Gases and vapors