INTRODUCTION The ATZDF actuator is a quarter-turn rack & pinion pneumatic actuator that doubles the torque of standard pneumatic actuators. The superior performance is achieved by Torqturns four piston design, which generates torque around a centrally located piston. This produces double the power for the same size actuator or half the size for the same […]

Australian Pipeline Valve’s floating firesafe SLFSBV01 ball valve design has been further improved over the last 10 years. Features: – Heavy wall to API608 and ANSI B16 with high tensile heavy bolts (not Taiwan/ China style with hardware store bolts). Heavy T-Bar pole lever (100NB and above). Superior TFM1600 PTFE seats. (TFM1600 is a modified […]

Main Valve Test Standards API 598 Valve Inspection and Test The most widely used test specification in the world. The standard covers all types of valves (soft & metal seated) in sizes up to 600NB (NPS 24). It also includes leakage rates and testing criteria for metal-seated and resilient seated valves. API6D Pipeline Valves Test […]

Composite Seating Since leather was married with timber to improve the bow, composite solutions have reduced the need to compromise. Yet most manufacturers only offer a single seat insert solution. Service considerations include temperature, media type, pressure etc. In the end materials like Nylon, Devlon and PEEK® are a compromise that must serve many masters. […]

API6D trunnion mounted ball valves with single piston effect seats (SPE) are designed to automatically release cavity over-pressure into the pipeline automatically using “self relieving seats”. Since body cavity and pipeline are isolated in the fully open and fully closed position, pressure trapped in the body cavity may be different than pressure in the line. […]

One piece seal welded body, floating ball double block. Primary seal METAL, to METAL, secondary seal vulcanized specially hardened Viton or NBR, pressure safe cover for the stem to prevent any leakage. For operation remove the cover. Completely in accordance to spec. KN251-005. Specifically designed as shut off drain and vent lines for larges valve […]

METAL TO METAL SEAT BALL & PLUG VALVES Global Supply Line supply flanged, weld and screwed end severe and critical service valves manufactured by Starline, Sferova, Energy Valves and Australian Pipeline Valve. Also available, true full bore top entry plug valves for slurry and dirty service. BUTTERFLY VALVES 100% Shut-off, true metal to metal seat […]

SINGLE SOURCE SUPPLY Single source procurement patterns are now becoming increasingly popular. GSL has strong long term alliances with various manufacturers and suppliers giving us a high level of capability to manage single source supply agreements. We can quote on fixed term contracts/blanket orders to supply valves, flanges, fittings and all pipeline components and manage […]

New purpose built facility for Australian Pipeline Valve at 70-78 Stanbel Road and Global Supply Line at 1-23 Barndioota Road Salisbury Plain SA. The new 20,000m2 facility combines the world’s largest valve & actuator stock holding range with a new state of the art engineering facility. The new facility greatly expands on our existing automation […]

Be careful with trunnion mounted ball valves 100mm (4”) and under and in reduced bore 150mm (6”) and under as many manufacturers cannot put a sealant injection directly onto each seat such as in the photo shown above (RHS). They can only fit a sealant injection to the middle of the body (photo LHS). Consequently […]

Global Supply Line Engineering are the approved Starline, Air Torque, Australian Pipeline Valve, Torqturn, Diamond Gear, JC, Sferova Service & Automation Centre for Australia, New Zealand and Papua New Guinea. For more information visit our Engineering section of our website.

Monolithic insulated Joints are available in sizes ranging from 50 NB to 200 NB (2” thru 48”) and pressure ranging from ANSI 150 to ANSI 900. Monolithic Insulated Joints electrically isolate sections of gas, oil and water pipelines to prevent corrosion caused by stray electrical currents or interference from other pipelines and power transmission cables. […]

Global Supply Line keeps large stocks of Bonney Forge ready packed with propriety Bonney Forge ECO-SEAL® packing. Bonney Forge: Fewer Emissions. Cleaner world. Brighter tomorrow. That’s what you get with BONNEY FORGE ECO-SEAL®. With Ultra-Low Emissions verified by third party testing to less than 10ppm per API 622, as well as providing lower leakage rates […]

Global Supply Line, Global Supply Line Engineering & Australian Pipeline Valve all together at the New Australian Valve Centre, what a team! $60 million inventory of valves, actuators, sight glasses, strainers, studs, gaskets, flanges & fittings provides total pipeline supply in a one stop shop. Global Supply Line Engineering can re-engineer, re-trim, automate, accessorise, test […]

The API6D test for a factory tested ball valve in regard to seat leakage only requires seat leakage to pass test on the second seat on the other end of the valve in both directions. There is not a mandatory double block and bleed cavity drain test requirement unless especially requested by the customer. Consequently, […]

TA-Luft TA-Luft only deals with stem sealing area. Also, no third party witness is needed. The TA-Luft test qualifies only a “high-quality sealing system”. TA-Luft is considered to be complied with if metal bellows with a safety energised packing or similar sealing systems are used; as per VDI 2440. TA-Luft does not specify the number […]

Global Supply Line has AGA Approval for JC, APV and Starline Ball Valves in all end types including Air Torque and Torqturn Actuated Ball Valves. Click these links to view their certficates APV, Torqturn, and Starline. JC Manual Valves and their Ball Valves with Air Torque Actuators are covered under the AS 4629 standard which […]

The API600 trim chart specifications are designed for API600 gate valves. For API603 gate valves as well as globe valves and check valves, the same trim numbers are more loosely applied (Trim Chart not referenced in latest API603 Standard). Obviously, in regard to globe and check valve, the hardness differentials shown on the disc and […]

Spring Return Handle provides unassisted opening or closing of manually operated quarter turn valves. The model 71 and S7 Spring Return Handle for example, driven by a powerful, completely enclosed torsion spring, automatically returns the valve to the desired fully-open or fully-closed position when released. Automatic valve repositioning is a convenience and safety feature for […]

Many manufacturers and operators in the oil and gas industry have leakage problems with elastomer seals, especially when a drop in pressure takes place. This primarily occurs in sealings which create a barrier against gaseous media if highly pressurised gas falls to a very low pressure level within a very short period of time. The […]

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