Ball Valve Points of Difference

Ball Valve Quality points of difference on our stock holdings

Our specifications on our stock holdings surpass market requirements

• LF2 Trunnion ball valves are available fitted with Elast-o-lion 985 A.E.D. o-rings which provide a wider temperature range (down to -46oC) but are also methanol resistant and have superior resistance to ethanol and sour oil and gas. For A105N Starline, JC, Sferova and APV our standard is Viton AED FR58/90 or Norsok M710 certified (and Shell Mesc approved) Hutchinson equivalent.
• ?Ball valves are stocked with CPTFE, graphite, PTFE, PEEK and metal to metal seats. Also in JC, Starline, and Australian Pipeline Valve we hold a full range of spares in stock including spare seats in graphite, bronze filled PTFE, carbon + graphite PTFE, Tefzel, PEEK, etc. We also stock spare seals, packings and body gaskets enabling us to reconfigure valves to suit any requirement. (We are fully approved by our manufacturers to do factory acceptance testing).
• We stock a full range of APV (Australian Pipeline Valve), JC and Starline 316SS levers, locking devices, stem extensions and brackets.
• JC, Starline, Sferova and APV hold certificates and approvals such as SIL3, AGA approval, API607 6th edition (ISO 10497) firesafe certification, API licenses as well as conforming to standards such as API6A, API6D, API608, ANSI B16, AS4629 and AS4617.
• Alloy Steel floating and trunnion ball valves are often specified with PTFE (PFA) coated silicon o-rings (or solid PTFE Chevron/LIP/o-rings) in lieu of conventional viton o-rings. This provides a lower and higher temperature range as well as the much wider chemical and temperature resistance spectrum provided by using PTFE in lieu of viton. In floating ball, by increasing the stem packing area the viton o-ring is no longer required in smaller sizes, hence in CF8M/316 firesafe and non firesafe floating ball we also stock elastomer free valves. Click here for more info.
• Firesafe certified with 3rd party Lloyds/DNV witness on floating & trunnion APV/Sferova/Starline/JC ball valves.
• We stock all accessories like deadman levers, multi-turn, quarter turn and declutchable gearboxes, Italian made actuator adaptors and brackets, 316SS/17-4PH ball valve levers, etc.
• Starline, JC, Sferova and APV trunnion mounted ball valves are available ex-stock with F51 (31803), F6A, 17-4PH or XM-19 (Nitronic 50) stem, trunnion and seats in larger sizes and in higher classes. Other manufacturers use 316 or worse CF8M even in much larger sizes. F51, 17-4PH, 4130+ENP, F60+ENP and F6A/410 is stronger than 316 and is require to handle extra torque, especially if particulates become entrapped in the seat area or if the ball is left in one position for a long period of time, the high quality Italian made Rotork? Gear boxes (standard on JC, Starline and Sferova) and Diamond Gear? (standard on APV) will still open the valve without risking damage to the stem and without the need to grease the seats (which can then attract more debris to the seat, risking seat damage). With the trend towards Devlon and hard PEEK? seat inserts due to their hard wearing (and higher temperature) capabilities, the torque of trunnion ball valves becomes a significant factor in the higher pressure classes especially when fitting an actuator. The other advantage of F51, 17-4PH, F6A/410 and XM-19 stems & trunnions they are around 50% harder than 316 and are therefore more scratch resistant. The same applies to F6 (410 series) and F51 stainless ball. Since a ball is highly polished there is no corrosion disadvantage with F6/410 compared to 316 in the service types encountered by an LF2 or A105 valve. F6 is also lower in cost and is increasingly being specified in lieu of 316. Also 316 is subject to H2S embrittlement whereas 17-4, 410, F6A, etc., is not. Partnering F51, 17-4PH, in XM-19 or F6 with PEEK provides a strong, hard wearing valve. Stocking high strength stem and lower torque seat materials is an advantage when fitting an actuator and GSL Engineering are authorised to automate and perform factory acceptance testing for all the brands we stock. Stocking high strength stem and lower torque seat materials is advantageous when fitting an actuator and GSL Engineering is authorised to perform factory acceptance test for all the brands we stock. Also with many of the brands we stock the lower trunnion is also available in ENP or full stainless. Other manufacturers rarely do this as smaller sizes up to 250NB (10") (depending on the class) have an external lower flange which is integral with the lower trunnion so supplying the entire assembly in full stainless steel would be cost prohibitive. Also 316SS sealant injection fittings and zinc plated bolts are standard for all valves stocked. Where you would throw away another valve, Starline, JC, Sferova and APV valves are built for life.
• All seat insert materials used (PEEK, Delrin, Devlon-V,POM,RPTFE) are all Shell MESC 77 approved and Norsok M-710 certified for sour service.
• We also stock trunnion ball valves with A105 or LF2 or F52 + ENP .003” (76 micron) ball/ trunnion.

APV, Sferova, JC & Starline use high phosphorous EN plating that has a Brinell hardness of 500 minimum as standard (further hardening can be performed up to 900BHN). 316 Stainless steel is very soft and has no minimum ASTM hardness level. An .003” EN plated ball resist scratches much easier than 316SS. Also it is smoother and provides a better seal in higher classes. The corrosion performance of EN plating is proportional to the plating thickness. 3 mil plating provides an excellent barrier protecting the base material (A105N, A350, LF2 or F52). In acidic PH conditions as low as 4. ENP 25 micron (.001″) should be limited to sweet service and neutral PH process. A105/ LF2/ F52 + ENP is also stronger for higher pressure service compared to 316. Where 316 trim is specified in higher classes, it needs to be substituted with F51 further ramping up the price. In the old days 316 trim became popular as an alternative to poorer chrome plating. Also 316 trim balls could be re-machined but these days valves are more disposable. EN plating is allowed by NACE MR-0175/ ISO 15156 and is suitable for higher temperatures than 316. 316 when used in NACE service is limited to a maximum of 60oC due to dangerous interactions with chlorides above 60oC causing sulphide stress embrittlement. Electroless Nickel plating has a surface coating of up to 85% nickel. 316 Stainless steel also relies on nickel for corrosion resistance but only contains 10 - 14% nickel.

• Our JC, Sferova, APV and Starline stock profile also includes full offshore specification floating and trunnion ball valves with all 316SS external fitments including lever, top works, gearbox handwheel and stem, sealant fittings bleeds and drains. In addition, bolting is Xylan or zinc plated as standard in all brands stocked and o-rings are in AED FR58/90 (or Norsok M710 certified Hutchinson equivalent) or viton GLT-AED or elast-o-lion 985.
• Globe valves in API 623 standard, fully body guided disc.
• Anti corrosive film on internals and gasket face.
• Stainless and zinc plated or full 316SS top works components.
• API 608/API 6D/ASME B16 floating ball valves with high tensile bolting even in stainless body, not Taiwanese light wall valves with light duty bolts.
• Our F51 stock has corrosion test certification, Duplex or B8m plus Xylan coated bolts, stainless steel levers, etc.
• ENP trim on ball valves is .003" (0.76mm) not .001" like many brands. In addition it is hardened to minimum 500VHN/ 530BHN. The A105/LF2 gland and trunnion is also specified as ENP or F51/F6A, unlike many other brands.

Looking for 20NB to 100NB (3/4” to 4”) 150 to 2500 class, small bore trunnion mounted? We have Shell approved Starline and Australian Pipeline Valve in stock! No one else in the world stocks very small and lower pressure class trunnions. Looking for compact/short pattern full port 150NB to 400NB (6” to 16”) 150 - 600 class trunnion ball valves? Australian Pipeline Valve can do it! Others can't! For more info click here.

Our specifications always surpass market requirements.

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Global Supply Line - With $60 million inventory, we are the world's largest valve and actuator stock range. Click here to view and bookmark our full stock list. Click here to view and bookmark our catalogues. Click here to join the GSL Group. Click here to join our GSL company page for the latest updates.

Australian Pipeline Valve - short lead time, high quality oil and gas valve manufacturer. Specialising in short runs and supplying high specification valves. Click here to view and bookmark our catalogues. Click here to join the APV Group. Click here to join our APV company page for frequent updates.

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