درباره ما

VolPort، شرکت پیشرو در صنایع سنگ شکن و آسیاب چینی، در 30 سال گذشته همواره به توسعه سنگ شکن های سنگ معدن، ماشین آلات شن و ماسه سازی و آسیاب های صنعتی اختصاص داده شده است.

با ما تماس بگیرید

محصول

ما محصول

سنگ شکن موبایل

ما محصول

سنگ شکن فکی پیو

ما محصول

سنگ شکن VSI

Helium Leak Detectors

The helium leak detector can then detect and quantify the helium coming through and provide the signal and display the leak rate. The Leybold Phoenix Quadro is the very good leak detector available for this method. The Quadro comes in oil sealed, and dry versions. The Phoenix Vario allows the user to attach the pump of their choice.

Leak Detectors for helium, hydrogen, air and tracer gas

The wide range of leak detectors from Pfeiffer Vacuum offers solutions for all these requirements, for example portable or modular devices, helium leak detectors for …

How is helium sniffer technology used in leak detection …

Sniffer technology - local leak test using the positive pressure method. Here the points suspected of leaking at the pressurized test specimen (see Fig. 5.4, d) are carefully traced with a test gas probe which is connected with the leak detector by way of a hose. Either helium or hydrogen can be detected with the helium leak detectors.

ULVAC

Features. HELIOT 900 has industry leading pumping speed at 5L/sec in ULTRA flow mode. This shortens the time for the helium background to drop. Especially when checking for very small leaks. Sensitivity is improved when leak testing is done with differential pumping systems. Eye friendly display, visually intuitive operation with a simple and ...

Understanding Minimum Detectable Leak in Helium …

pump out the spectrometer vacuum system to remove as much background helium as possible. Keep in mind that a spectrometer measures all the helium present in the system. It cannot interpret if that helium was from a leak, was trapped in O-ring seals, or was desorbed from vacuum surfaces. Any unaccounted background could result in an …

ELD500 | Helium Leak Detectors | Leak Detection

PARTIAL FLOW KIT - Allows effective pump down of large of contaminate flows compatible with ELD500 and FLEX variants. ACCURATE PIN-POINTING OF LEAKS - Standard sniffer line enables operation up to 4m from the ELD500. Longer sniffer lines of up to 50m can be used with the sniffer extender interface. LONG TERM STABILTIY - Ensured by class …

Ideal Vacuum | Pfeiffer Adixen ASM 340 Helium Leak …

FEATURES of the Pfeiffer Adixen ASM 340 Helium Leak Detector Portable Table Top Model: Contains a turbo primary pump and an internal 11 CFM (15 m3/hr) wet oil-sealed rotary vane backing roughing pump; 2.5 l/s helium pumping speed; Fast time to test: unrivalled performances from small to large volumes;

TITAN VERSA Helium Leak Detector

TITAN VERSA Helium Leak Detector. LACO Technologies TITAN VERSA, the most powerful and versatile helium leak detector platform on the market. Designed and assembled by LACO in the USA, TITAN VERSA is built to meet your most demanding leak detection challenges in both production leak testing and maintenance/service leak …

Vapor Intrusion Fundamentals: Part 31 – Leak Testing

Helium leak testing has been regarded as the gold standard in much of the vapor-intrusion literature, and it has several advantages. First of all, measuring tracer concentrations in real time (with field instruments) allows leaks to be recognized and repaired immediately. ... We attach a hand-held vacuum pump to the tubing, put a …

Industrial Vacuum Pump Repair And Sales | Industrial Vacuum Pump …

Helium leak detectors are one of the best ways to find and locate unwanted leaks. Helium leak detection can be either qualitative or quantitative depending on any testing specification. When it comes to finding the proper leak detector for your testing application, contact one of our highly trained engineers at AVAC Industries, where quality is ...

The Fundamentals of Vacuum Leak Detection

Standard helium conditions are always present during helium leak detection for a vacuum system when the system is connected to a leak detector. If the system is pumped down too p less than 1 mbar and if it is sprayed with helium mass …

PHOENIX 4

The PHOENIX Quadro is a portable helium leak detector, which can be used in many different applications. The accurate measuring system and the intuitive operation of the PHOENIX Quadro ensure simple and highly reliable leak detection. The PHOENIX Quadro dry has a dry-running backing pump and thus an oil-free pump system.

Ideal Vacuum | Pfeiffer Adixen ASM 340 Helium Leak Detector With

FEATURES of the Pfeiffer Adixen ASM 340 Helium Leak Detector Portable Table Top Model: Contains a turbo primary pump and an internal 11 CFM (15 m3/hr) wet oil-sealed rotary vane backing roughing pump; 2.5 l/s helium pumping speed; Fast time to test: unrivalled performances from small to large volumes;

Seiler Garepa Pvt Ltd

Seiler Garepa is Especially known for manufacturing a premium quality range of Helium Leak Test Machine, Helium recovery Equipment, Vacuum pumps, Assembly lines in India. A leading manufacturer and suppliers of Helium Leak …

Leak Checking Large Vacuum Chambers

depends on the helium pumping speed of the vacuum pumps on the chamber. Sensitivity Sensitivity, defined as the ability of the helium leak detector to identify the smallest possible vacuum leak, can be a challenge when leak checking large vacuum systems. Maximum sensitivity is achieved when 100 % of the helium entering the vessel (though the leak)

Helium Leak Testing | wittgas

Helium is used for leak-testing critical and safety-relevant components, e.g. testing airbag ignitors, fuel systems, gas conducting pipes or even pacemakers, in a large variety of industrial production processes. The air conditioning and heat pump manufacturer Daikin also uses the expensive inert gas due to its highly suitable material ...

How Does KNF Measure Pump Leakage? | KNF

4. Helium Leak Testing – Why Helium? More advanced testing methods than the two above use special test gases to detect pump leakage. KNF uses helium as a test gas. It is virtually non-existent in the atmosphere naturally, environmentally friendly, inert, non-hazardous and easily detectable, all properties that make it ideal for use as a …

Helium and Hydrogen Leak Detectors | Busch United States

Helium or hydrogen is sprayed onto the outer surface of the test object with a spray gun kit (see figure 1). In case of a leakage, the incoming molecules are drawn in by the integrated turbomolecular vacuum pump of TAPIR together with its backing pump. The molecules enter an analyzer cell, which detects the tracer gas atoms.

Helium Leak Detectors for Vacuum & Sniffing Applications

Accessibility. Helium leak detectors from Agilent are designed for demanding vacuum and sniffing applications. Our comprehensive range includes powerful, precise, and easy-to …

Leak Detection — AEROWING

Aerowing leak location processes take the guessing game out of leak detection, using patented Selective Ion Pump developed specifically for the demands of the aerospace industry. Aerowing Helitest helium leak detectors can be adapted for fuel leak detection by using the Helitest Wing Kit, complete with Class 1, Div 1 Safety Probe and Injection ...

HLD PR02 Portable Helium Leak Detector

Find out more about the Agilent HLD PRO2 Portable Helium Leak Detector. The HLD PR02 portable leak detector is precise, powerful, and easy to use, and fits easily on a table, bench, or cart. Choose this configuration when you need a compact all-in-one solution and/or have supplemental pumping systems. Enables optimized leak testing methods …

Ideal Vacuum | Agilent HLD PD03 Helium Leak Detector …

These Agilent HLD PD03 dry helium leak detectors operate on 100-120 or 200-230V, 50/60Hz, are designed to be portable (lightweight and easy to carry), with internal 3 CFM (3.6 m3/hr) oil-free IDP-3 dry scroll vacuum pump, and have Agilent Part Number PN G8610B. FEATURES of the Agilent HLD PD03 Dry Helium Leak Detector …

Four ways of finding vacuum leaks using helium

The only credible method to detect leaks smaller than 1x10-6 mbar*l/s is with a helium leak detector. A leak diameter for 1x10-12 mbar*l/s (which equates to 1Å) is …

Abnormal IABP balloon pressure waveforms | Deranged …

The filling pressure is adjusted automatically; if this is not happening, there must be either a helium leak somewhere, or a failure of the automated filling mechanism. Alternatively, you have just run out of helium, and the tank needs to be replaced. ... "Intra-aortic balloon pump timing: review of evidence supporting current practice ...

Helium Leak Detector

Compactness and size have always been criteria in detriment to performance for helium leak and hydrogen detecting. Turbo Vacuum provides economical and user friendly units in a small package, great for detecting light traces of gas which are capable of infiltrating a micro opening the size of 5 x 10-12 mbar. ... Roughing Pump (Flow Rate CFM ...

Helium and Hydrogen Leak Detectors | Busch United States

Minimum detectable leakage rate for helium (sniffing leak detection) 1 · 10 -8 Pa · m³/s. 5 · 10 -10 Pa · m³/s. Usage. portable. industrial. Pumping speed of backing pump (at 50 …

Helium Leak Detection | Agilent

Helium leak detection is the ideal solution for determining the vacuum tightness of a large vacuum chamber. Why helium leak detection is ideal. Sealed Devices. Loss of a hermetic seal may cause oxidation or corrosion …

TITAN VERSA L Helium Leak Detector

The TITAN VERSA L (Horizontal) configuration is an incredibly powerful and versatile helium leak detector based on an innovative and proven core technology. It is designed for high performance and is built for speed. It is most commonly mounted on a maintenance cart or on a bench top. Typical applications include large volume leak detection, …

TITAN VERSA C Helium Leak Detector

Part Number: TVC-XX1-1. The TITAN VERSA C (Compact) with external, user-supplied pump, is an incredibly powerful and versatile helium leak detector based on an innovative and proven core technology. It is lightweight, mobile, and flexible. It is most commonly mounted on a maintenance cart or integrated into a production leak test system.

Mobile Helium Leak Detector, HLD MR30, Rotary Vane Pump …

The MR30 includes an Agilent DS-602 Rotary Vane Pump (pumping speed: 30 m 3 /hr) for very fast evacuation of test parts and systems and rapid cleanup of ambient helium between test cycles. This helium leak detector model …

Vacuum Technology, Vacuum Pumps & Systems | Agilent

Discover vacuum pumps, helium leak detectors, vacuum measurement instruments, and vacuum components from Agilent (formerly Varian Vacuum). Our range includes standard and fully customized turbo pumps, ion pumps, diffusion pumps, scroll pumps, rotary vane pumps, and helium leak detectors. We provide flexible and reliable vacuum solutions …

Guide to Helium Leak Testing

There are 2 basic techniques; high vacuum testing which allows leak test thresholds to be set down as low as 1×10 -12 mbar.l.sec -1, or sniffing which is generally used for helium leaks down to 1×10 -6 mbar.l.sec -1. For …