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The types of traps detailed within this document are designed to suit all types of applications and standard fitting arrangements. The majority of applications are served by either the 'Sapphire' GEM Trap (for screwed pipework at low pressure) or the 'Ruby' GEM Trap (for flanged connections at high pressure). For all welded pipework or systems in explosive areas, the 'universal' / 'quick fit' bolt on 'Emerald' GEM Trap is available.

TRAP SIZING & SPECIFICATION

TRAP SIZING

• Mechanical Steam Traps

• Makers and suppliers of mechanical steam traps provide sizing graphs for customers or designers to take on the responsibility of trap sizing. Hence if the sizing or specification is incorrect, new alternative traps have to be purchased. This arrangement is onerous to the customer / designer as there is a bewildering array of types and makes of mechanical traps, all with arange of operational pros and cons, which are guaranteed to fail due to their mechanical components.
• GEM Steam Traps

• GEM Engineers specify and size all GEM Traps as part of our standard 10 Year Performance Guarantee provided with all GEM Steam Traps (details included within the Installation and Maintenance Instructions). This ensures:

• the correct specification from a small range of traps, each with the same operational characteristics.
• optimum sizing from our extensive database developed over decades, giving operational efficiency, reliability and safety of the steam system.
• Individually Sized Traps

• In all but very repetitive installations all GEM Traps in the product range are individually sized. Each trap is given a location reference, unique serial number and a size/configuration reference. Quotation and delivery notes provide application details including heating / condensate loads, to ensure that each trap is fitted in its intended position. Full records are kept for each trap, so if you are ever unsure of the intended location of a GEM Trap simply contact GEM Ltd.
• Generic Sized Traps

• Very repetitive applications such as drip legs and trace heating in refineries and large chemical plants do not justify individually sized traps. Hence generic loading details are established for each different section of thesystem and the 'Quartz' or 'Ruby Filter' are supplied in batch numbers.
• Sizing Pledge

• This gives customers peace of mind as, in the event of incorrect / inaccurate sizing data being used for whatever reason, alternative capacity GEM Traps are provided free of charge.

PRESSURE CERTIFICATION

All types and sizes of GEM Traps have been pressure tested and witnessed by Lloyds. Certification is available from www.gemtrap.com.

MATERIAL CERTIFICATION

Trap bodies are machined from stainless steel bar stock from European steel mills and full product traceability is part of our Quality Assurance procedure. Material certification 'type 3.1' according to BS EN 10204:2004 (E) are available on request.

Please click on the links to the right for more information or request a quote today!