LACO has been a trusted and accredited provider of calibrated open-style leak standards since 1998. With over 26,000 CalMaster leak standards manufactured, we have the experience and technology to ensure your leak testing success. Our open-style leak standards utilize micro-tube capillary technology and stand as the foremost leader in the industry for its unparalleled stability and reliability.
NIST-traceable calibration services backed by A2LA-accredited calibration lab (ISO 17025:2017, ANSI/NCSL Z540-1-1994) and an ISO 9001:2015 certified quality system.
| Leak Element | Micro tube capillary |
|---|---|
| Gas Options | Any gas, primarily helium |
| Leak Rate Range | 1e -10 to 1e-2 atm*cc/sec |
| Calibration Points | 1 to 5 points |
| Isolation Valve | Solenoid valve, 24 VDC, Brass |
| Outlet Connection Options | No Connection, NPT 1/8” male, NPT 1/4” male |
| Inlet Connection Options | NW16 flange, NW25 flange, NW40 flange, NPT 1/8” male, NPT 1/4” male, NPT 1/8” female, NPT 1/4” female, Strait thread M8 male, Strait thread 10-32 male, Swagelok 1/4” |
| Exhaust | Into Vacuum |
| Other Options | Pressure Gauge |
| Inlet Pressure Options | Specified value, up to 5 digits |
| Inlet Pressure Unit Options | psig, Torr, mBar |
| Gas Concentration & Flow Options | 10% to 100% |
| Flow Options | Total Flow, Partial Flow |
| Calibration Tolerance Options | Standard tolerance (+/- 1.0 of mantissa). Precision tolerance (+/- 10% of nominal), High precision tolerance (+/- 2% available on helium only) |
LACO will custom design a leak standard to one of your parts or design a reservoir to mimic it, resulting in a simulated part. We can make your simulated parts “pass” or “fail” your pre-defined criteria. This allows you to:
LACO’s high pressure leak standards allow you to calibrate high pressure systems ranging from 500 psi to 5000 psi or higher. These high pressure leak standards are critical for the following applications.
LACO has many options for connection fittings on your calibrated leak standard. These connections allow you to integrate your leak into your system for easy calibration. Connection options include:
LACO will use your specifications to create custom size and/or shape leak standards expertly engineered for your unique application.
