Agilent Varian Helium Spray Probe Gun. Designed for use in maintenance or production leak detection applications. Allows spraying of helium to find the exact location of a leak. Includes three nozzle types for different application requirements. Works with all Agilent Varian 936, 959, 979, 990 and VS PR02, VS MR15, VS MD30, VS BR15, VS BD30 and HLD Series Leak Detectors, 00991-K9565-301.

Agilent Varian Leak Detector Sniffer Power Probe, KF25 for VS, 936, 959, 979, 990 and HLD Helium Mass Spectrometer Leak Detectors, 10ft.Agilent Varian PN K9565306.The Power Probe is a “sniffer” probe designed to locate leaks emanating from sealed containers internally pressurized with helium. The Power Probe adjusts for varying sensitivity and response time. It is extremely rugged and can be easily disassembled for cleaning. The probe kit includes 5 tip filters and is available with 10 feet of connecting tubing and an inlet KF25 adapter to fit on the leak detector. It is ideal for fast response sniffing with MacroTorr pumped leak detectors. Works with all Agilent Varian 936, 959, 979, 990 and VS PR02, VS MR15, VS MD30, VS BR15, VS BD30 and HLD Series Leak Detectors. This is the Sniffer Power Probe only in its case and all other accessories, pumps and leak detectors sold separately. Agilent Varian Part Number K9565306.

Agilent Varian Leak Detector Sniffer Power Probe, 1-1/8 Compression Port for VS, 936, 959, 979, 990 Series Helium Mass Spectrometer Leak Detectors Agilent Varian PN: K9565301. The Power Probe is a “sniffer” probe designed to locate leaks emanating from sealed containers internally pressurized with helium. The Power Probe adjusts for varying sensitivity and response time. It is extremely rugged and can be easily disassembled for cleaning. The probe kit includes 5 tip filters, 10 feet of connecting tubing and an 1-1/8 Compression Port adapter to fit on the leak detector. It is ideal for fast response sniffing with MacroTorr pumped leak detectors. Works with all Agilent Varian 936, 959, 979, 990 and VS PR02, VS MR15, VS MD30, VS BR15, VS BD30 Series Leak Detectors. This is the Sniffer Power Probe only in its case and all other accessories, pumps and leak detectors sold separately. Agilent Varian Part Number K9565301.

Agilent Varian Leak Detector, Sniffer Power Probe, KF-25 for VS, 936, 959, 979, 990, HLD Series Helium Mass Spectrometer Leak Detectors, 25 ft. Agilent Varian Part Number: K9565307. The Power Probe is a “sniffer” probe designed to locate leaks emanating from sealed containers internally pressurized with helium. The Power Probe adjusts for varying sensitivity and response time. It is extremely rugged and can be easily disassembled for cleaning. The probe kit includes 5 tip filters, 25 feet of connecting tubing, and an inlet KF25 adapter to fit on the leak detector. It is ideal for fast response sniffing with MacroTorr pumped leak detectors. Works with all Agilent Varian 936, 959, 979, 990 and VS PR02, VS MR15, VS MD30, VS BR15, VS BD30 and HLD Series Leak Detectors. This is the Sniffer Power Probe only in its case and all other accessories, pumps and leak detectors sold separately. Agilent Varian Part Number K9565307.

Agilent Varian Harsh Evironment Application Probe, KF25 for VS, 936, 959, 979, 990 Series Helium Mass Spectrometer Leak Detectors Agilent Varian PN G8600-68002. Power generation facilities, chemical plants and similar facilities require a leak detector to sample gas that is primarily water vapor (steam) and/or contains chemicals that would damage the detector. To prevent this damage from happening, Agilent has developed a specialized probe and leak detector configuration tailored to the demanding requirements of these applications. The VS Harsh Environment (HE) Probe is designed to withstand the wet environment and high temperatures inside condenser piping without the need for dryers, chillers, a secondary vacuum pump, or throttling valves. The probe can either be held or installed in the exhaust of a pump on the condenser system, or can be flange-mounted directly into the piping of the system under test. The probe is connected to the flange via an adjustable compression fitting so the probe tip can be positioned in the center of the pipe. This guarantees the probe tip is in the maximum helium flow for the best sensitivity. Equipment damage due to corrosion or water in the leak detector or roughing pump is eliminated. The Agilent HE Probe is able to withstand water, amines (ammonia derivatives), and operate at temperatures up to 95 °C (200 °F). The probe is connected directly to a VS Leak Detector with no additional water trapping or auxiliary pumping required. The probe consists of a 5 meter long corrosion resistant 316L stainless steel tube with a composite permeable membrane at its tip. The membrane readily permeates helium tracer gas while protecting the leak detector from water vapor and chemicals that would destroy the pumps, valves, and spectrometer. When the HE Probe is used in conjunction with an Agilent VS Leak Detector equipped with a wireless remote, the manpower needed for a leak test can be cut in half. A single operator can spray helium remotely from the location where the detector is sampling gas, yet can still monitor the instrument’s response. Works with all Agilent Varian 936, 959, 979, 990 and VS PR02, VS MR15, VS MD30, VS BR15, VS BD30 Series Leak Detectors. Agilent Varian Part Number G8600-68002.

Agilent Varian Heads, Tip and Probe Set for PHD-4 Helium Leak Detector. Agilent Part Number 9693515 The PHD-4 is a complete battery powered portable helium leak detector. This is the replacement heads and tip set. This is NOT the PHD-4. For complete operation of the PHD-4 see instruction manual.pdf below at (AVAILABLE DOWNLOADS). Helium Leak Testing Basics Helium mass spectrometry, or helium leak testing, is a highly precise means of leak detection. This technology was first developed for the Manhattan Project during World War II to locate extremely small leaks in the gas diffusion process. At the heart of helium leak testing is a complex piece of equipment called a helium mass spectrometer. Quite simply, this machine is used to analyze air samples (which are introduced into the machine via vacuum pumps) and provides a quantitative measurement of the amount of helium present in the sample. In practice, a leak, is identified by a rise in the level of helium being analyzed by the machine.Helium leak testing can identify extremely small leaks. For example, our equipment can detect a leak so small that it would emit just two cubic centimeters of helium (or the amount equal to two sugar cubes) in 320 years. While very few applications require this level of precision, this example serves to highlight the accuracy possible with this process.While helium leak detection may appear to be a simple procedure, the process involves a combination of both art and science. The user must ensure the equipment is functioning properly and the process is highly dependant upon the user’s experience. Consider this analogy: while anyone with enough money can buy an airplane, learning how to fly one takes a lot of practice. The same is true with helium leak detection—make sure your pilot knows how to fly.Why Is Helium Superior?While many gases are used in leak detection, helium’s qualities provide for superior testing. Having an AMU (Atomic Mass Unit) of only 4, helium is the lightest inert gas. Only hydrogen, with an AMU of 2, is lighter than helium. However, due the hydrogen’s explosive potential it is rarely used.Additional reasons why helium is a superior tracer gas: Only modestly present in the atmosphere (roughly 5 parts per million) Flows through cracks 2.7x faster than air Nontoxic Nondestructive Nonexplosive Inexpensive User Friendly Due to these attributes, and its high sensitivity, helium leak testing has gained broad acceptance in a wide range of leak testing applications. Helium Leak Testing’s two primary testing modes while there are a variety of testing procedures, in general there are:Two primary methods of helium leak testing: Spray Probe Sniffer Probe The choice between these two modes is based on both the size of the system being tested, as well as, the level of sensitivity required.Spray Probe: Provides Maximum SensitivityFor this technique, the leak detector is hooked directly to the system under test and the inside of the system is evacuated. Once an acceptable vacuum is achieved, helium is sprayed discreetly on the outside of the system, with particular attention being paid to any suspect locations. Any leaks in the system, including defective welds (caused by cracks, pin holes, incomplete welds, porosity, etc.), flawed or missing gaskets, leaks due to loose clamps, or any other defect will allow helium to pass and be readily detected by the machine. The source of any leaks can then be accurately pinpointed and repaired.The spray probe process is used to achieve the highest level of sensitivity. The equipment being used dictates the maximum sensitivity achievable; in Jurva Leak Testing’s case it is 2x10-10 std cc/sec. This technique does require that the system being tested is relatively leak tight prior to testing, as an ample vacuum is required for testing. However, by using special throttling devices a gross test can typically be performed. The gross test should eliminate any major leaks, permitting the use of increased sensitivity.The following are examples of systems that we test using the spray probe technique: A-bar furnaces E-beam systems Laser systems Metal deposition equipment Distillation systems Vacuum systems Sniffer ProbeFor this technique, helium is purged throughout the inside of system being tested. Due to the innate properties of helium it readily migrates throughout the system and in its attempt to escape penetrates any imperfections, including: defective welds (caused by cracks, pin holes, incomplete welds, porosity, etc.), flawed or missing gaskets, leaks due to loose clamps, or any other defect. The system’s exterior is then scanned by using a probe attached to the leak tester. Any leaks will result in an increased level of helium nearest the source and be readily detected. Leak sources can then be pinpointed, providing the opportunity for immediate repair and retest.Unlike the spray probe technique, this process is very flexible and can be adapted to meet the needs of any virtually any system in which helium can be injected. There is no practical size limitation. The sniffer probe technique is not as sensitive as the spray probe process, however, due to the amount of helium present in the air (approximately 5 ppm). The maximum sensitivity achievable under this procedure is approximately 1x10-6 std cc/sec. Nevertheless, this process is vastly superior to other traditional leak testing methods, such as: bubble testing, acoustic emission, liquid penetrant or vacuum box testing.The following list is an example of systems that Jurva Leak Testing has tested using the sniffer probe process: Storage tanks (both above ground and below) Floating roofs Underground pipelines Underground cables Aseptic systems (flash coolers, heat exchangers, fillers, etc.) Any vessel/line or system that can be pressurized Specialized Testing TechniquesIn addition to the two primary testing procedures listed above, there are a number of more specialized techniques that can be utilized. Among these techniques, we routinely employ bagging or hooding and bombing. (content nicely written by Jurva Leak Testing, http://www.jurvaleaktesting.com/HeliumLeakTesting.html)