7. Test Specifications
Test input pressure: Maximum 2000 psi (138 bar)
Test input pressure: Minimum 1500 psi (103 bar)
Safety valve blow off pressure: 80 -90 psi (5.5 - 6.2 bar)
Output pressure at 58 ± 5 psi (4 bar Nominal)
Flow Calibration tolerance: +/- 10%
Leak test, permissible leak: None
8. Line Charts
R1500 Series Medical Regulator
Operating & Safety Instructions
Bull Nose Cylinder Fitting
Morton House, Skerton Road
Manchester, M16 0WJ
(0)161 872 6322
(0)161 848 7914
Pin-Index Cylinder Fitting
4. Safety Precautions for the prevention of Fire & Explosion
The Oxylitre R1500 series regulator is designed specifically for medical use. It is available for a range of
gases including: Oxygen & Medical Air. Conforms to BS EN ISO 10524-1.
The Regulator or patient MUST NOT be allowed near any source of ignition i.e.:
All gas connections comply with National and International Standards for safety and prevention of
connecting an incorrect gas (BS 341-3 for Bull Nose; BS EN ISO 407 for Pin Index).
Optional Outlet Connectors
Standard conical tubing tail which has been designed to fit most delivery tube sizes.
The R1500 Series Regulators are preset to 4 Bar (400 kPa).
(Please Note: Filters should only be replaced by authorised/trained Personnel).
Each Regulator is fitted with two integral filters that will protect the patient and/or the user from any
The first filter is placed in the inlet stem of the regulator.
The second filter is part of the main seat cartridge assembly.
The regulator is fitted with an easy to read, colour coded Contents gauge. A safety system is placed in
the rear of the gauge, which releases gas pressure in the event of a leak.
The regulator is also fitted with a 0 to 15 Lpm Flow gauge that is printed with illuminated characters and
The Safety Valve System has been designed to release gas pressure for the safety of the user/patient
and/or the equipment connected to the Regulator. This will operate only if the working pressure
increases due to a malfunction in the regulator.
(The Safety Valve System is not an adjustable device).
3. Instructions for use
Open electrical appliances
This precaution applies during and after patient use.
Warning: This Regulator MUST NOT come into contact with any Oil or Grease, a reaction may cause an
A medical regulator forms part of an essential support system. Regulators must be treated with care and
be serviced on a regular basis, (i.e. preventative maintenance) to ensure the unit’s reliability and quality
for the purpose that it is used for. The units require cleaning on external surfaces only by using a solution
of luke-warm water and “Dettol” or similar disinfectant fluid (read disinfectant instructions) and cleaning
Recommended at least annually by a Service Engineer and consist of:
Connect regulator to the cylinder (as in section 3)
Check the contents of the cylinder that is indicated by the pressure gauge.
Close the cylinder valve and observe the contents gauge for pressure drop. If the needle on the
gauge drops, this indicates a leakage in the system. The device will require a service and/or
Servicing should be only carried out by fully qualified technicians. A Major Service is recommended
every 5 years. For service enquiries and information, please contact our sales office. NEVER USE
FAULTY EQUIPMENT. Preventative maintenance ensures safety for the patient and user.
6. Technical Data
Fitting to a Cylinder (Note: Take great care with these operations):
Before connecting a Regulator to a Cylinder, momentarily open and close the Cylinder Valve
to blow out any accumulated dust or moisture. Inspect the inlet connector seal for signs of
damage or contamination, if found replace immediately! These seals should be replaced at
least once a year i.e. as part of a Standard Service (Note: NEVER use two seals together).
Seal for Pin Index Inlet Connectors = Part No: OX010 (BODOK)
Seal for Bull Nose Inlet Connectors = Part No: BS110 (‘O’ Ring)
Connect the Regulator securely to the Cylinder.
Always open the valve very slowly (approx one full turn) to reduce the danger of explosion or
fire arising from pressure shock.
Before use, check the contents of the cylinder indicated on the pressure gauge.
Removing from a Cylinder:
Turn OFF the cylinder valve.
Bleed off the pressure, by opening a valve on the apparatus connected to the regulator.
Disengage the regulator from the cylinder.
Maximum inlet pressure: 2000 psi (138 bar)
Minimum inlet pressure: 400 psi (27.6 bar)
Output pressure: 58 psi (4 bar) ± 3 psi
Flow rates: set at 58 psi (4 bar) Nominal
Back pressure drop to: 55 psi = 110 Lpm approx.
Back pressure drop to: 454 psi = 275 Lpm approx.
Standard discharge = 125 Lpm
Please see Table 1 for the regulators performance specifications. This indicates the performance of the
device set at the standard output pressure, standard discharge and the variations at varied inlet
Please see Table 2 for the regulator pressure characteristics when the Flowmeter is in operation. The
chart indicates the variation of the output pressure during flow and when the regulator output pressure
has been set at the upper and lower input pressures.
Flow calibration range
Oxygen: 0 to 15 Lpm
Medical Air: 0 to 15 Lpm