ESAB R-50 Series Controlled Flow Cylinder Regulators Troubleshooting instruction

Brand: ESAB

Model: R-50 Series Controlled Flow Cylinder Regulators

Type: Troubleshooting instruction

INSTRUCTIONS for

F-14-237

December, 1995

R-50 SERIES

CONTROLLED FLOW CYLINDER REGULATORS

Regulator Gas Preset Nom. Connections (CGA)

Model P/N Service Flow Rate Inlet Outlet*

R-50-TIG-580 18361 Argon or 25 cfh 580 032

R-50-MIG-580 17773 Argon Mix 35 cfh

R-50-MIG-320 17774 CO

35 cfh 320 032

Be sure this information reaches the operator.

You can get extra copies through your supplier.

l CGA-032 (FORMERLY "B"I.G.)—5/8—18RH female.

Each regulator is equipped with 1-1/2-in. dia., 0-4000 psi cylinder pressure gauge.

Dimensions Weight: Overall length............................................... 4-1/4 to 4-3/4-in.

Body Diameter .......................................................... 1-1/4-in.

Weight............................................................................ 1 -lb.

Accessory: CO

Heater, P/N 950578 - Recommended if CO

regulator is expected to operate at high duty cycles.

The heater connects between regulator and cylinder permitting the CO

to flow without "freezing up" the regulator.

Requires standard electrical extension cord of appropriate length with 3-prong connections.

The INSTRUCTIONS contained on this sheet are intended specifically for operators who know the general principles of operation

and safe practices to be followed in operating this type of equipment. If you are not sure that you understand these principles

fully, we urge you to read our booklet "Precautions and Safe Practices for Arc Welding, Cutting and Gouging" Form 52-529, in

addition to these instructions. Do NOT permit untrained persons to install, operate, or maintain this equipment. Do NOT attempt

to install or operate this equipment until you have read and fully understand these instructions. If you do not fully understand

these instructions, contact your supplier for further information.

The regulators covered by these Instructions are listed by Underwriter's Laboratories only when using parts manufactured by The

ESAB Group to the specifications on file with Underwriter's Laboratories, Inc., and the gas service for which it is designed and

listed. The use of other parts voids the manufacturer's warranty.

F-14-237

l Do not change CGA inlet connection from number

stamped on regulator body.

l Follow operating instructions on this sheet.

l This regulator must be installed, operated and

maintained only by trained servicemen.

l For complete safety information on welding and

cutting equipment, read form 2035 (oxy-fuel gas)

and 52-529 (arc welding). For safety information

on gases, see your supplier.

TO CONNECT:

1. Open the cylinder valve slightly for an instant, and

then close it. This is known as cracking the valve.

This blows away and dirt or dust which may have

accumulated in the valve outlet. Be sure to keep

your face away from the valve outlet to protect your

eyes.

Do not clamp regulator cap in a vise or grip it with

a pair of pliers. Distortion of cap can jam the inter-

nal parts and cause excessively high delivery pres-

sure as well as weaken the threaded joint to the

regulator body. This may cause cap to fly off and

possibly injure personnel in area.

The regulators are not adjustable. They are fac-

tory set to deliver a fixed flow rate as specified in

the table above. Do not attempt to make any ad-

justments.

INERT GAS OR CARBON DIOXIDE can cause suf-

focation in confined spaces.

l Always work in well ventilated area.

l Prevent leaks.

1. Close the cylinder valve.

2. Release gas from the regulator by opening valve

downstream.

3. When pressure gauge reads zero, the regulator

may be removed from the cylinder.

INLET FILTER MAINTENANCE

Each regulator is equipped with a porous metal inlet

filter, P/N 71Z33, pressed into the regulator inlet nipple.

No regulator should be connected to a cylinder or sta-

tion valve unless it contains this filter. You can replace

the filter if you have reason to do so. To remove a

filter, insert a No. 1 "EZY-OUT" or a No. 6 wood screw

(about 2-in. long) into the filter and pull it out. Carefully

press the new filter into the nipple with a 1/4-in. round

metal rod.

REPAIR SERVICE

If gas is escaping through the safety release device, or

if any leakage was noted, the regulator should be re-

turned to your distributor or to ESAB Remanufacturing

Center, 411 S. Ebenezer Road, Florence, SC 29501.

If you have your own properly equipped and staffed

repair facility, repair parts information for this regulator

(Form 14-239) is available on request to your distribu-

tor.

NOTE: Safety release device equipped on these regu-

lators is designed for regulator protection; not

for hose or equipment downstream. If gas es-

capes through the safety release device, im-

mediately close cylinder valve and then re-

move regulator from service for repair.

F-14-237 12/95 3M Printed in U.S.A.

2. Attach the torch hose to the regulator outlet ("B"-

size inert gas female connection) and tighten the

connection snugly with a wrench. (A shutoff valve,

such as the OXWELD V-30 Argon-Water Shutoff

Valve, P/N 16X21, may be connected between the

regulator and torch if desired.

3. Open the cylinder valve slowly a fraction of a turn.

When the cylinder pressure gauge pointer stops

moving, open the valve fully. Never stand directly

in front of or behind the regulator when opening

the cylinder valve. Always stand to one side.

IMPORTANT: Before starting operation, test all con-

nections with a Leak Test Solution

such as P/N 998771 (8 oz. container).

Correct any leaks before starting work.

Testing should be performed after

torch or other gas-using device has

been properly connected, with

valve(s) downstream of regulator

closed.

Also, check all joints on the regulator, including vent

holes in the cap, for leakage. If leakage is noted, the

regulator should be removed from service and sent out

for repair.

TO STOP FLOW

If work is to be stopped for a half-hour or more, or the

regulator is to be removed from the cylinder, shut down

the regulator as follows:

ESAB R-50 Series Controlled Flow Cylinder Regulators Troubleshooting instruction

ESAB R-50 Series Controlled Flow Cylinder Regulators Troubleshooting instruction

ESAB R-50 Series Controlled Flow Cylinder Regulators Troubleshooting instruction

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