Check valves
Relief valves
Shutoff valves
Metering valves
Gauge isolation valves
Ball valves
Bleed valves
Bellows-sealed valves Instrumentation ball valves
Needle valves
Diaphragm valves
Cylinders and cylinder valves
Compression tube fittings
Pipe fittings
Instrumentation manifolds
Particulate filters
Actuators

Pneumatic manifold switches
Mercury-free motion switches
Pneumatic valves
Aerospace assemblies
Medical assemblies
Military assemblies

Solenoid valves
Pilot piston pressure-operated valves
Semi-direct lift valves
Direct lift valves

The bigger things are, the more critical small parts can be. And you don't get much bigger than Norway's Asgard offshore oil and gas project, said to be the most extensive subsea development ever undertaken.

In addition to 57 wells and 300km of in-field flowline, the project comprises both the world's largest production vessel and the world's largest floating gas platform, plus a large floating storage ship.

Statoil and project supplier Teamtrade standardized on the use of Hoke Gyrolok compression fittings, instrument valves and manifolds in materials including 316 stainless steel, Duplex, Titanium and Hastelloy®.

In fact, Teamtrade has never before delivered as broad a range of Hoke products to a single project. This included needle, ball, check, rising stem plug, and bleed valves.

There were also 2-valve and 5-valve instrument manifolds in both 6,000 and 10,000 psi configurations and with both metal and soft stem tips for liquid and gas service, 8-way air distribution manifolds and sampling cylinders.

Gyrolok fittings were supplied in sizes from 6mm to 25mm, along with matching Gyrogages which aid safe installation of the fittings by preventing the possibility of any installation errors.

The Hoke equipment was delivered to a variety of applications on this huge project, such as high pressure and high temperature hydrocarbon and process systems, control valves and hydraulic systems and power units.

Other application areas included compressors and turbines, chemical injection and methanol packages, air supply, ballasting and cargo systems, subsea systems and xmas trees.

With oil flowing since Spring 99 and gas coming on-line this year, Teamtrade has highlighted long cycle life and savings in maintenance costs as main benefits of the Hoke products, plus competitive price and delivery terms.

Easy installation and assembly procedures were additional advantages, and storage costs have also been reduced by the ability to select the correct material relevant to critical applications and limiting the variety and numbers of components needed.

The Hoke valves and fittings were specified for the working life of the field after evaluation of their performance on the Norne production vessel. Selection demands included high pressure and temperature, corrosion resistance and meeting NACE requirements.