In August 2005, Meggitt PLC acquired UK-based Avery-Hardoll. Its fuelling capabilities were merged with Whittaker Controls in California, a Meggitt group company, to become Meggitt Control Systems.
Meggitt Control Systems has highly experienced sales, marketing and technical personnel located in the US, the UK and Asia. The combined operation is known as a world leader in the development, production and installation of a wide array of ground fuelling products and services.
Whittaker Controls, acquired by Meggitt in 1999, is a market leader in the design and manufacture of a broad range of fluid control devices and systems for commercial and military aircraft, and numerous industrial applications. It has been a signature supplier of these products since its formation in 1942.
The company entered the aviation fuelling industry in 1993 when it acquired Thiem Industries, and has since established itself as the largest provider of ground fuelling products and services in North America for commercial and military aircraft and tanker refuelling. Its products include fuelling nozzles, bottom loading products, hydrant couplers and control valves and the most complete line of underwing nozzles covering equipment for the world's largest commercial airports and small community facilities.
Meggitt Control Systems', previously known as Whittaker Controls' products, are supported globally through an extensive network of stocking distributors.
The company's state-of-the-art in-house test facilities simulate the operating environment of its products to ensure that hardware meets customer quality standards and requirements.
Avery-Hardoll products and services can be traced as far back as 1932. Since then, it has expanded into the design and production of couplings, valves and associated fluid management products and services. While its market share is largely concentrated in Europe, its name is well-known throughout the world.The company's extensive line of products includes couplings, marine, oil and gas and military use.
Hose End Pressure Control Valves
This Service Bulletin addresses the use of Hose End Pressure Control Valves when performing defueling operations.
When being used during pressure assisted de-fueling operations, Hose End Pressure Control Valves must be made inoperative by using a hydraulic (F594), (HUMY 3500-HUMY 3503), (HUMS 4504 - HUMS 4507) or a mechanical lockout device (F595).
A permanent placard has been added to all Whittaker Controls (F595 series) Hose End Control Valves stating "ATTENTION: LOCKOUT DEVICE MUST BE INSTALLED WHEN DEFUELING". We are recommending that this placard be attached to all Whittaker Controls and Avery-Hardoll HECV's. It is available from your local distributor at no charge. Instructions for attaching the placard will be included when you order P/N 2891023-101.
The part number of the mechanical lockout device for the F595 Series is 941020-101 and may be obtained from your local distributor. The hydraulic lockout device for the F594 Series and Avery-Hardoll HECV's may be obtained from Gammon Technical Products (ref: Gammon bulletin #47).
Current Maintenance Manuals may be downloaded from:
Maintenance and Overhaul Videos
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