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 […]

Fugitive Emission, Firesafe, AGA approved, etc.

Early last century there was Cameron (USA) (which the Russian’s copied!) and then WKM (USA), then along came Grove (USA), in Japan along came Kitz, then KTM and IKS (WKM under license). In Europe there was Borsig (Germany) and TK (Scotland), not long after in the early 70’s came BC Richards Australia (who also made […]

Cast steel API 600/ API 603, mass produced Wedge Gate valves and inline, cast globe valves will not necessarily always function properly on a 90 or 45 degree angle which is common practice in refineries. Forged Gate & Globe valves up to 50NB always seal properly but don’t install them in a position where the […]

  Another urgent valve shipped to Epic Energy complete with APV-Diamond Gear® declutchable gearbox and Air Torque pneumatic actuator and position indicators, fitted with fully enclosed adaptor brackets. Air Torque actuators are a rugged, light weight, heavy duty, alternative for oil & gas applications in lieu of traditional bulky iron/steel body, scotch yoke, piston style […]

Examples of our stock holding quality points of difference include: – Anti corrosive film on internals and gasket face Selected stainless and zinc plated top works components. Stainless external components such as sealant injection nipples on premium brand ball valves. Equilibrated 2-stage disc on large size globe valves as well as hammer blow hand wheels. […]

Sferova F51 TM ESDV Ball Valve (Norsok certified o-rings) c/w Air Torque heavy duty SIL3 certified, EX certified, heavy wall, low weight, Alloy, rugged heavy wall rack & pinion, high torque, 100% Italian made, spring return actuator & controls. Supplied, fitted & tested by Global Supply Line Engineering in our Sferova & Air Torque approved […]

Neway Oil visit

May 24th, 2017 by Amanda Schumann

Neway are China’s biggest valve company. Neway Oil are the Porsche of Chinese API6A valve manufacturers. Neway had been in API6A manufacturing for sometime but decided to set up their own specialist division four years ago and sent their best and brightest staff members to set up the specialised dedicated API6A division. Neway Oil are […]

In floating ball valves 316 (CF8M ball) trim is the standard because under 150mm there is only a minimal cost advantage using ENP trim in 150/300 class as the ball wall thickness is not large and the balls are mass produced keeping the costs down. However, in the trunnion mounted arena 316 trim is utilised […]

You’ll find these handy tables and many more in the Valve Technical Library at our website. Click here to view and bookmark all of our valve and piping technical references.

Steamco manufactures cast steel steam valves for boilers, geothermal applications, power plants and general steam applications. Valves are manufactured in ASME class 150, 300, 600, 900, 1500 as well as AS and BS table D to H and PN 2.5 to 420. Valves Manufactured Isolation valves: Parallel Slide Gate Valves and Geothermal Gate Valves. Piston […]

Seat testing optional, did you know? The table below shows API598 testing is optional in several key test areas. Global Supply Line and Australian Pipeline Valve always perform all hydrostatic & pneumatic tests whether optional or not, whether from stock or indent. In addition, Global Supply Line also provide full certification on all trim components […]

Check out our entire valves and piping technical library for all your reference needs here. Don’t forget to bookmark this section for reference later.

  Trunnion mounted ball valves often have corrosion inhibitor in the sealant injection lines to prevent corrosion during ocean transport or due to humidity etc. The trouble with this is, nowadays they use synthetic oils. Synthetic oils become dry and tacky, and the seat and ball area become dry and tacky/sticky. After the actuator is […]

  Most people would have noticed that companies in Korea use the same certificate/witness to produce all valve firesafe certificates. Does anyone ever notice that these certificates have every single Class (150 to 2500), for each individual valve type, every single material grade (Duplex, Stainless, Carbon, Alloy, etc.), every size (1/2” to 60”) and every […]

Australian Pipeline Valve (APV) brand manufacture a complete range of ASME steel valves for the petroleum, petrochemical and process industries such as check, gate, globe as well as fire safe certified ball and plug valves. The Australian Pipeline Valve family of brands also includes a large portfolio of established products that cover a broad range […]

Even if you’re ordering from a quality valve manufacturer, they often sub contract out special painting of the valves. Typical problems involve not taping up the stem area or indeed the bore area properly or the tape falling off. Sandblasting residue can ingress into the stem area or into the seat area. Initially this may […]

Another top up shipment of high quality, investment cast, APV firesafe certified floating ball valves has been received in. ‘Full Stainless Steel’ means full stainless steel lock device, mount pad,  hand lever and bolting not just body. True ANSI B16 wall thickness. Heavy duty rugged T bar and pole lever, not light duty lever. Fully […]

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