SEALEY SGA30 Oxygen Regulator Instruction Manual
- June 11, 2024
- SEALEY
Table of Contents
SGA30 Oxygen Regulator
Oxygen Regulator
Model No: SGA30
Thank you for purchasing the Sealey Oxygen Regulator. This product is manufactured to high standards and if used according to the instructions provided, it will provide you with years of trouble-free performance.
It is important to carefully read and follow all the instructions, operational requirements, warnings, and cautions provided in this manual to ensure safe usage of the product. Failure to do so may cause damage, personal injury, and will invalidate the warranty.
Refer to instructions
Wear opaque goggles
Wear gloves
Wear protective clothing
Wear safety footwear
1. SAFETY
✔ Always have a fire extinguisher nearby.
✘ Never use oxygen or fuel gas to blow soot or dirt from your clothes.
✘ DO NOT wear ragged clothes, as sparks can ignite the ragged or loose ends.
✔ Secure cylinders to a trolley, wall or post to prevent them from falling.
✔ All cylinders should be used and stored in an upright position.
✘ Never drop or strike a cylinder. DO NOT use cylinders that have been dented.
✔ Cylinder caps should be used when storing or moving cylinders.
✔ Empty cylinders should be kept in specified areas and clearly marked
‘EMPTY’.
✔ Inspect fittings for damage. If any damage is found, replace immediately.
✔ Always use reverse flow check valves on torch and flashback arrestors on the
regulator.
This greatly reduces the possibility of mixing gases in the regulator or
hoses. Reverse flow check valves are an important safety precaution.
✔ Keep all threads and unions clean and free from oil, dirt or grease.
✘ Never apply oil or grease to any thread, inlet or outlet connection or
cylinder valves.
✔ For safety advice regarding gas bottles (oxygen and acetylene) refer to the
supplier of the bottles.
✔ Make sure bottle keys are in place at all times so that in the event of an
emergency the valves can be turned off quickly.
✔ LEAKING HOSES CAN KILL. Leak test all connections and valves prior to each
use of the equipment.
✔ Remember at all times
BLUE = OXYGEN ‘O’
RED = ACETYLENE ‘A’
✔ At no time may you interchange parts contained in this kit with those of
other manufacturers. Only Sealey replacement items should be
used.
✔ The regulator in this kit has no user-serviceable parts. All
repairs/calibrations must only be undertaken by a BCGA approved service agent.
2. INTRODUCTION
Twin gauge regulator complies to BS EN ISO 2503 with bull nose adaptor and 3/8”BSP hose union. Displays bottle pressure and working pressure for oxygen.
3. ASSEMBLY
WARNING! Danger of explosion. All parts which come into contact with oxygen, including hands and tools, must be free from oil or grease. If grease or oil is found on a cylinder, discontinue its use immediately and contact your gas supplier.
3.1. PREPARING THE CYLINDER
3.1.1. Make sure that the cylinder to be used is safe and properly secured as
noted in the safety precautions.
3.1.2. Whilst standing to one side or to the rear of the cylinder ‘crack’ the
cylinder valve. ‘Cracking’ is to quickly open and close the valve
allowing gas to escape and thus clear the valve of any dust, dirt or foreign
bodies.
3.2. CONNECTING THE GAS REGULATOR TO THE CYLINDER
NOTE: Pressure regulators should be treated as precision instruments and
should not be jarred or knocked.
3.2.1. Function of the regulator.
Fitted to the outlets of the gas cylinder valves, the pressure regulator
reduces the pressure of the gas from cylinder pressure to the
constant lower pressure required for the operation of the equipment. The left
hand gauge indicates the pressure in the cylinder.
The right hand gauge indicates the pressure of the gas being delivered to the
torch. Pressure reduction within the regulator occurs in
two stages.
3.2.2. Use only oxygen regulators to control the oxygen supply. Switching
regulators from non-oxygen to oxygen use can introduce contaminants to the
system. Ensure that the valve is always clean and completely free of grease or
oil. Use a dry lint free cloth to thoroughly clean the regulator before use.
Never use an oxygen regulator for other gases.
3.2.3. Attach oxygen regulator to the appropriate cylinder and ensure the
inlet filter is in place and is not blocked or contaminated.
Do not use any form of jointing paste or tape between regulator and cylinder
valve.
3.2.4. Before attaching the regulator, wipe the fittings with a clean dry lint
free cloth. Screw the union at the base of the regulator to the appropriate
cylinder by hand. Ensure that the regulator is correctly orientated so as to
be seen properly by the operator in use.
3.2.5. To tighten, turn CLOCKWISE for OXYGEN. A wrench should be used to
ensure tight connections.
3.2.6. Before opening the cylinder valve, ensure that the oxygen regulator’s
pressure adjusting screw is released. To do this, rotate the adjusting
screw fully counter clockwise. If this is not done, pressure from the cylinder
can damage the diaphragm and render the regulator inoperative.
3.2.7. Cylinder valve-to-regulator connections should be checked for leaks
using an approved leak detection spray or soap and water solution.
3.2.8. Stand to one side while opening the oxygen cylinder valve. Open the
valve as slowly as possible until the high pressure gauge reaches cylinder
pressure. Ensure you open the cylinder valve slowly as surges of high pressure
can cause a blow out.
3.3. CONNECTING THE FLASH ARRESTORS AND HOSES TO THE GAS REGULATORS
3.3.1. Connect the BLUE, OXYGEN flash arrestor to the outlet on the OXYGEN
regulator.
3.3.2. Tighten all nuts securely with a wrench. If any sign of oil or grease
is found on the flash arrestor or regulator discontinue use immediately.
NOTE: New hoses contain a preservative powder which must be blown out
before use.
3.3.3. Prior to attaching the torch, blow out both hoses to eliminate any
particles or debris. Perform this on one hose at a time and in a well
ventilated area, otherwise you may create conditions for fire or explosion.
a. Turn the oxygen regulator adjusting screw clockwise to allow 5psi to pass
through hose.
b. Allow oxygen to flow for approximately 10 seconds to purge each hose in
turn.
ENVIRONMENT PROTECTION
Recycle unwanted materials instead of disposing of them as waste. All tools,
accessories and packaging should be sorted, taken to a recycling centre and
disposed of in a manner which is compatible with the environment. When the
product becomes completely unserviceable and requires disposal, drain any
fluids (if applicable) into approved containers and dispose of the product and
fluids according to local regulations.
Note: It is our policy to continually improve products and as such we reserve the right to alter data, specifications and component parts without prior notice.
Important: No Liability is accepted for incorrect use of this product.
Warranty: Guarantee is 12 months from purchase date, proof of which is
required for any claim.
Sealey Group, Kempson Way, Suffolk Business Park, Bury St Edmunds, Suffolk. IP32 7AR
01284 757500
01284 703534
sales@sealey.co.uk