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TH104 

Cylinder Valves 

Instruction Manual 

Failure to follow these instructions or to properly install and maintain this equipment could result in gas 

leakage, fire or explosion causing property damage and personal injury or death. 

 

 

Oasis products must be installed, operated and maintained by trained and competent personnel in 

 

accordance with all applicable local codes, rules and regulations in addition to the Oasis Instructions.

 

 

Oasis Engineering Ltd. will not be held liable in such circumstances where installation, operation and 

 

maintenance procedures were performed by incompetent personnel resulting in improper assembly, unsafe 

operation, equipment damage or personal injury. 

 

The Oasis 100 series Cylinder Head Valve models TH104 have been designed and manufactured in accord-

ance with sound engineering practice (SEP) and comply with the SEP requirements of the EU Pressure Equip-

ment Directive 2014/68/EU.  Technical documents required by the Directive are held by the Manufacturer.

 

Instruction Manual 

Oasis Engineering Ltd 

129 Birch Avenue, Tauranga, New Zealand. 

T: +64 7 928 3808 

E: [email protected] 

W: www.OasisNGV.com 

Summary of Contents for TH104

Page 1: ...be held liable in such circumstances where installation operation and maintenance procedures were performed by incompetent personnel resulting in improper assembly unsafe operation equipment damage o...

Page 2: ...ecommends considering the use of the following PPE when working with high pressure along with any other site specific health and safety requirements Torque Wrench With 1 4 Hex Anti Seize Grease Swagel...

Page 3: ...f the contents of an item of pressure equipment from the atmosphere or from downstream equipment which is not designed to withstand upstream pressure Compliance with the UN ADRs is mandatory for press...

Page 4: ...foot Torque to 100Nm For non adjustable adaptor installation see page 5 26mm Crows foot Recommended Torque 50Nm 3 to 4 turns Please ensure that the tape covers all threads but does not overlap the en...

Page 5: ...eads but does not overlap the end of the fitting 1 a NPT Adaptor Apply thread tape and thread sealant Tighten connection hand tight before apply two full turns with wrench Optional If galling is a con...

Page 6: ...d tighten to fitting suppliers recommendations 9 Installation complete leak test on first use with snoop or soapy water 1 4 Hex head 7 b Install PRD to adaptor and torque to manufacturers spec Install...

Page 7: ...ug into valve port Make sure O rings are clean and not damaged before installing 1 4 Hex head Recommended Torque 30Nm Internal leaking will come through the vent hole in the center of the commissionin...

Page 8: ...he right to modify product specifications without prior notice TH104 INS 01 1723 Oasis Engineering Limited Important Actuate valve 4 times before use to ensure initial sealing 1 Open 2 Closed Operatio...

Page 9: ...Nitrile 90 216 Nitrile 90 2 x Seats 1 x Stem 1 x Ball 1 x Gland 2 x Seat O rings 1 x Silicone grease 1x 906 Nitrile 90 2x 908 Nitrile 90 3 x SAE Port O rings 1 x Cap O ring It is normal for the servi...

Page 10: ...ut prior notice TH104 INS 01 1723 Oasis Engineering Limited 1 Vent pressure from system and remove valve 2 Remove adaptor 3 Discard adaptor O rings Open and close valve to ensure all trapped gas is re...

Page 11: ...01 1723 Oasis Engineering Limited 8 Discard the ball 6 Remove end cap 34mm Spanner needed 7 Discard the seat and the O ring in the cap 5 Discard gland We reserve the right to modify product specificat...

Page 12: ...01 1723 Oasis Engineering Limited 10 Discard the seat and O ring 11 Discard the cap O ring Do not scratch body 12 Clean the components and inspect for damage Check for excessive damage to sealing fac...

Page 13: ...imited 5 Fit cap O rings 6 Tighten end cap 4 Insert 2nd seat Click 34mm Socket Recommended End Cap Torque 60Nm 2 Insert stem assembly 3 Insert ball 1 Insert 1st seat and O ring We reserve the right to...

Page 14: ...ut prior notice TH104 INS 01 1723 Oasis Engineering Limited 8 Assemble handle components 13mm Socket Recommended Handle Nut Torque 3Nm 9 Tighten handle nut 10 Insert O rings 908 Nitrile 90 216 Nitrile...

Page 15: ...le 90 Apply silicone grease to all O rings and anti seize to all threads 11b Follow installation instructions on page 3 of this manual for re fitment of valve Replace SAE port O rings with those suppl...

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