ESAB R-5700 High Capacity Pipeline - Station Regulators Troubleshooting instruction

Brand: ESAB

Model: R-5700 High Capacity Pipeline - Station Regulators

Type: Troubleshooting instruction

ESAB R-5700 High Capacity Pipeline - Station Regulators are designed for high capacity service, such as multiple-torch or multi-station operations or a single equipment requiring high gas consumption. They can be installed for either station service or for supplying gas through a pipeline. The 1/2-in. NPT inlet and outlet female connections are “in-line” or 180° apart, as well as the 1/4-in. NPT gauge ports. Each regulator is equipped with one delivery pressure gauge with the other gauge port plugged. The gauge and the pipe plug may be interchanged if a more convenient reading position is desired after installation.

INSTRUCTIONS for

R-5700 HIGH CAPACITY

PIPELINE - STATION REGULATORS

These INSTRUCTIONS are for experienced operators who are familiar with the principles of operation

and safe practices in handling gases and gas regulation equipment. If you are not sure that you under-

stand the principles fully, your ESAB representative can supply you with additional instructions.

SPECIFICATIONS

Delivery Delivery Max. Capacity*

Pressure Pressure for Nitrogen

Regulator Range, Gauge, ft

/hr ( L/min )

psig psig “C” Size 1/2" NPT

Model Part No. (kPa) (kPa) Outlet Outlet

R-5701 639628 0-15 0-30 2,000 6,000

(0-103) (0-207) (945) (2830)

R-5702 639629 0-75 0-100 6,000 13,000

(0-517) (0-690) (2830) (6150)

R-5703 639630 0-150 0-200 10,000 13,000

(0-1035) (0-1380) (4720) (6150)

R-5704 2224525 0-150 0-200 10,000 13,000

** (0-1035) (0-1380) (4720) (6150)

* Capacity will depend on the inlet and delivery pressures, outlet restriction,

and type of gas used (see capacity curves on pg. 2). For other gases, multiply

the given nitrogen flow rate by the following correction factors:

** R-5704 is an all brass body regulator.

acetylene 1.03 hydrogen 3.68

air 0.97 methane or natural gas 1.31

argon 0.83 oxygen 0.92

carbon dioxide 0.79 propane 0.79

helium 2.61

NOTE: Piped or distributed acetylene pressure should

never exceed 15 psig (103 kPa).

Gas Service: Any non-corrosive industrial gas.

Max. Inlet Pressure: 400 psig (2760 kPa).

Inlet and Outlet Connections: 1/2-in. — 14 NPT fe-

male.

Operating Temp. Range: -40 to 160° F; (-40 to 71° C).

Dimensions: 3-1/2-in. dia. x 6-1/2-in. (89 mm dia. x

165 mm).

Weight: 3 Ibs ( 1.4 kg)

DESCRIPTION

The R-5700 Series Regulators were designed for high

capacity service, such as multiple-torch or multi-station

operations or a single equipment requiring high gas

consumption. They can be installed for either station ser-

vice or for supplying gas through a pipeline. The 1/2-in.

NPT inlet and outlet female connections are “in-line” or

180° apart, as well as the 1/4-in. NPT gauge ports. Each

regulator is equipped with one delivery pressure gauge

with the other gauge port plugged. The gauge and the

pipe plug may be interchanged if a more convenient read-

ing position is desired after installation.

NOTE: If regulator is to be used for supplying oxygen

or a fuel gas from a station outlet for an oxy-fuel

gas process, a suitable shut-off valve and check

valve (or hydraulic back-pressure valve for fuel

gas if desired) must be installed between sta-

tion outlet and regulator to prevent possible

backflow. For additional information, refer to the

latest National Fire Protection Association’s

Standard, NFPA No. 51.

OPTIONAL ACCESSORIES

Shutoff Valve (V-35, P/N 998210; V-53, P/N 639674;

or V-54, P/N 998184) and CV-5 Check Valve Adaptor

(P/N 639717); Available to meet the latest requirements

of NFPA No. 51 when using an R-5700 regulator for sta-

tion service. The V-35 and V-53 are in-line, ball-seat type

valves with 3/4-in. NPT female connections that fully

opens on 1/4 turn of the handle. The V-35 has replace-

able seat seals. The V-54 is a 90° throttle type valve

with 3/4-in. NPT male inlet and female outlet. The CV-5

is a 3/4-in NPT male x 1/2-in. NPT male adaptor with a

built-in check valve for coupling any of the shutoff valves

to an R-5700 regulator.

Hose Outlet Adaptor: The following 1/2-in. NPT male x

“C”-size adaptors are available for connecting “C”-size

hose from outlet of regulator to the gas using equip-

ment:

Oxygen (7/8 - 14 male R.H.) ...............................P/N 18Z55

Fuel Gas (7/8 - 14 male L.H.) .............................P/N 18Z08

F-12-513-B

August, 1995

Be sure this information reaches the operator.

You can get extra copies through your supplier.

150

125

100

2000

4000

6000 8000

10,000

12,000

NITROGEN FLOW RATE, CU. FT. / HR.

MAX. DELIVERY PRESS.

R-5703 & R-5704

MAX. DELIVERY PRESS.

R-5702

50 PSIG

INLET

100 PSIG

INLET

MAX. DELIVERY PRESS.

R-5701

200 PSIG

INLET

300 PSIG

INLET

400 PSIG

INLET

1/2" NPT, SCH. 40 OUTLET (0.622" I.D.)

"C" SIZE OUTLET (0.328 I.D.)

DELIVERY PRESSURE, PSIG

2. When making the initial delivery pressure adjustment,

all valves downstream of the regulator must be open

if you wish to get a true working-pressure reading on

the delivery-pressure gauge.

IMPORTANT: Before starting operations, test all con-

nections with a Leak Test Solution that is

suitable for oxygen service, 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 con-

nected, with valve(s) downstream of

regulator closed, and with maximum de-

livery pressure (see table) in the delivery

line.

To Release Pressure:

If operations are to be stopped for a half-hour or more,

you should release all pressure from regulator. To do

this, proceed as follows:

1. Close the station valve.

2. Open all valves downstream of the regulator.

3. Wait until the pressure has dropped to zero, then back

out the pressure-adjusting screw until it turns freely.

NOTE: If a regulator is to be out of use for a few days or

more, turn in the pressure-adjusting screw

enough to move the valve stem off the seat.

When the regulator is returned to use, be sure

to back off the pressure-adjusting screw un-

til it turns freely before pressure is admitted

to the regulator.

REPAIR SERVICE

Regulators in need of repair should be returned to your

ESAB distributor or to ESAB Remanufacturing Center,

Ebenezer Road Florence, SC 29501.

If you have your own properly equipped and staffed re-

pair facility, repair parts information (Form 12-524) for

this regulator is available on request to your distributor.

Inert Gas (7/8 - 14 female R.H.) .......................P/N 639377

INSTALLATION

Since the regulators are provided with pipe connec-

tions for direct attachment to any pipeline, a respon-

sible person must determine that a regulator is in-

stalled in the correct, properly labeled pipeline. Also

a regulator must not be changed from one gas ser-

vice to another until a responsible person has de-

termined that it is safe to do so.

Make sure all gas carrying piping and apparatus is

free of oil and grease before installing the regulator,

particularly when using oxygen. OIL AND GREASE

ARE EASILY IGNITED AND BURN VIOLENTLY IN THE

PRESENCE OF OXYGEN UNDER PRESSURE.

Apply a single turn of Teflon tape to the male pipe

threads before making the pipe connections. Tighten

all connections firmly with a wrench. Ref.: MIL-T-

27730A (ASG).

For Station Service:

1. Install the V-35. V-53, or V-54 shut-off valve to station

outlet. (If station outlet is other than 3/4-in. pipe use

suitable adaptors, bushings, etc.) and then the 3/4-

in. NPT end of the CV-5 check valve to the shut-off

valve.

2. Close the shut-off valve and turn on the gas supply.

3. Open the shut-off valve slightly, for an instant. (This is

termed as ‘cracking the valve’.) This will blow out dust

or dirt that may have collected in the station outlet.

Never crack a fuel gas valve near sparks, flames,

or any other possible source of ignition.

4. Connect the inlet of the regulator directly to the check

valve .

5. MAKE SURE the regulator pressure adjusting screw

is released by turning it counterclockwise until it turns

freely .

6. Connect hose adaptor to the outlet of the regulator

then attach hose from outlet to the gas using equip-

ment.

7. Open the shut-off valve SLOWLY and the regulator

is ready to operate.

Never stand in front of or behind the regulator

when opening the valve. Always stand to one side.

For Pipeline Service:

If regulator is to be used for supplying gas to a pipeline,

it is not necessary to install a shut-off valve and check

valve upstream of regulator. Follow the same sequence

as described for station service installation where ap-

propriate. Make sure “IN” connection of the regulator is

installed on the gas supply line and the delivery line is

connected to the “OUT” connection.

OPERATION

To Adjust Pressure:

1. To increase delivery pressure, turn the pressure-ad-

justing screw clockwise. To decrease delivery pres-

sure, turn the pressure adjusting screw counterclock-

wise.

Capacity Curves - R-5700 Series Regulators

F-12-513-B 8/95 3M Printed in U.S A.

ESAB R-5700 High Capacity Pipeline - Station Regulators Troubleshooting instruction

ESAB R-5700 High Capacity Pipeline - Station Regulators Troubleshooting instruction

ESAB R-5700 High Capacity Pipeline - Station Regulators Troubleshooting instruction

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