DRALLIM INDUSTRIES LIMITED

Access panels, hatches and open doors on parked aeroplanes can all be potential safety hazards for airline personnel unaware of the opening. In the past, flight attendants and servicing staff have suffered injuries and even death because of falls through these openings. Investigations have indicated that incidents of this nature are preventable by the proper and consistent use of barriers and by following strict airline policies and procedures. Our door barrier (safety) nets are designed to prevent people from falling through the open doorway. They provide efficient protection reducing risks to ALARP, essential to comply with the “Work at height regulations 2005”. A similar design can be adapted to fit any aircraft platform, if you have a requirement, please contact us to arrange a visit to site.

Our highly skilled staff specialise in solving the sort of engineering and manufacturing conundrums you’d rather do without. Our organisation is geared to producing one-off’s; We take pride in overseeing the entire process, from design, prototyping and manufacture to delivery, installation, full product certification and after-sales service. With experience in providing comprehensive turnkey assembly test solutions covering electronic, electromechanical, engineering and mechanical products we offer our customers a total contract manufacturing service. We are a leading innovator in design and manufacturing solutions, providing engineering skills, manufactured equipment & custom-built systems for the Aerospace, Industrial and Utility Markets.

The waveguide dehydrator is a crucial element of any communications waveguide system, be it a microwave, radar, TV satellite terrestrial or antenna system. This high-capacity waveguide dehydrator for location in both ETSI and standard 19” racks, has reversible mounting brackets allowing the same unit to fit within either enclosure without any further need for mounting brackets or plates. Whether you choose the 230vAC or the 48vDC variant, the 12446 boasts an impressive output of over 220 litres per hour at an excellent dewpoint of -40ºC. The unit comes with 2 fixed output pressure options of either 15 or 40 mbar, and 6 off ¼” pneumatic outlets as standard. Despite its physical dimensions, the 12446 houses a high capacity, high pressure air storage vessel which allows the unit to remain inactive for extended periods of time, keeping maintenance requirements to an absolute minimum. Dry air delivery: 8 ft3/hr Dry air dew point -40c Output pressure 0.2 – 6 psi

Closely matched with the performance and specifications of our accomplished 19” rack-mounting waveguide dehydrators, the 12445 series Waveguide Dehydrator is intended to offer our customers a range of space-saving wall-mounting alternatives. Now available with 3 levels of performance, the 12445 range suits many applications. Protruding only 16cm or 23cm from a wall, and mounting via integral keyhole slots, these units dispense with any need for additional shelving or brackets. In addition to the exceptional performance now associated with Drallim Waveguide Dehydrators, in this case between 5 and 35 cubic feet per hour output, the 12445s are loaded with features, including the following: Integral air reservoir Adjustable output pressure regulator Output flow meter Humidity detection equipment Excessive run-time alarm Remote alarm monitoring terminal Digital runtime display High and low output pressure alarms

The Rotary Selector Valve or RSV, is a small bore multiport, multibank rotary poppet system suitable at pressures ranging –1 +10 Bar, Fluid Temperature 85°C (185°F) . It is a relatively simple & therefore extremely reliable unit, based on a modular design & as such configurable for a multitude of applications. It is custom built from stock parts. The body is manufactured in brass or stainless steel, both having stainless spindles & they can have stems and seals in differing materials to suit the media being used. Each bank of the valve is pneumatically independent but linked by a common central spindle, enabling separate air paths to be controlled concurrently; each output is effectively a valve. The RSV (once also known as the PIV or Pneumatic Interlok Valve) can incorporate an integral electrical rotary switch which allows fluid & electrical circuits to be controlled simultaneously or can be used simply to provide positional indication remotely at the control centre.

Our skilled staff specialise in solving the sort of engineering and manufacturing conundrums you’d rather do without. Our organisation is geared to producing one-off prototypes and small batch manufacturing; We take pride in overseeing the entire process, from design, prototyping and manufacture to delivery, installation, full product certification and after-sales service. With experience in providing comprehensive turnkey assembly test solutions covering electronic, electromechanical, engineering and mechanical products we offer our customers a total contract manufacturing service. When an order is received, a project plan is then developed; our team uses detailed documentation, engineering change and reporting control to ensure continued information integrity. An experienced project manager acts as the interface between Drallim and our customers although, at the same time, we actively encourage engineer-to-engineer communication.

For anyone intending to carry out routine maintenance to critical pressurisation units, the 12377 is an essential tool. Weighing approximately 30kg this unit is fully portable. Its design incorporates wheels, and an extendable handle to aid its movement. Following a recent design change to incorporate the same 1/3HP compressor that is used in the 12434, and 12437, this small unit is now able to produce a dry air output of 30 cubic feet per hour at output pressures of between 3 and 15 psi. Should increase flow be required a unique feature allows a second compressor to be connected to a built-in power take off point. Each 12377 is supplied ready to run, complete with 3 metre power lead and plug, and a quick connect chuck for pneumatic connection. Uses twin tower molecular sieve, adsorption system.

The Drallim Dehydrator type 12269 is an energy saving integrated unit for supplying low pressure dry air to, for example, telephone cables, waveguides and aerial feeders. Design emphasis is on reliability and low maintenance given the critical role of this unit within an operator’s system. These products provide a continuous supply for dried air, at pressure, to maintain the operational integrity of cable systems and broadcast transmitter feeds. This very high-performance unit is home to two 3/4HP compressors. This unit can produce more than 185 cubic feet per hour, this is regulated and split between up to 80 outlets, each with its own flowmeter for a visual indication of each cables demand for air. Mains Failure, High Humidity, Low Output Pressure, High Output Pressure, Compressor 1 and 2 Duty indicator. It’s low noise level of around 60dBA is quiet enough to allow it to be sited in manned areas.

The 12437 Waveguide Dehydrator, designed for cable pressurisation applications, has proved successful in numerous aerial and waveguide applications, and a low-pressure version has evolved. This unit is the same as its higher-pressure counterpart, but for an output regulator, and gauge which are more accurate within the 0.5 to 3 p.s.i. pressure band. This dehydrator uses an efficient 1/3 HP compressor to fill its large integral receiver to a pressure of up to 65 p.s.i. In addition, to the larger receiver, the unit benefits from built in compressor and receiver gauges. These gauges can help the operator to assess the condition of a unit, and help with fault finding in the event of a failure. Another useful feature of this unit is the humidity detector test facility, which assists in fault analysis alongside the standard remote alarms. In common with all our current units, the 12437 Waveguide Dehydrator is equipped with a thermal/magnetic overload circuit breaker with neon indicator.