lubrimist® auto drain leg system installation and

Revision 0 September 16, 2015

P/N 77740248

LubriMist® Auto Drain Leg System

Installation and Operation Manual

P/N 77720463


P/N 77740248

Table of Contents

I. Manufacturer Contact Information

II. Product Description

III. Mechanical Operation Conditions

IV. Installation

V. Typical Installation Diagram

VI. Commissioning

VII. Routine Checks

VIII. Troubleshooting

IX. Drawings and Parts


P/N 77740248

I. Manufacturer Contact Information

This publication provides instruction and information for the LubriMist® Auto Drain Leg System. Design, application and distribution of LubriMist® Oil Mist is covered in other publications. For additional information contact the Reliability Services office nearest you, or check our website. For questions regarding this publication or if you have specific questions regarding the installation and operation of this equipment, please contact Reliability Services 1740 Stebbins Dr. Houston, Texas 77043 USA Ph 1.713.464.6266 Fx 1.713.464.7375 Reliability Services CLARUS | COT-PURITECH | LSC | LUBRITECH | SICELUB | TOTAL LUBRICATION MANAGEMENT colfaxfluidhandling.com/reliability-services


P/N 77740248

II. Product Description

LubriMist® auto drain leg assembly is equipped with a two-gallon reservoir made from stainless steel and with standard monitoring/control features such as oil level gauge, filter/regulator, pressure gauge, diaphragm pump, and pneumatic level switch. A complete system installation includes auto drain leg assembly, drain leg manifold with visual sight glass and manual push button valve, and interconnecting piping/tubing. Only instrument air supply is required for operation.

LubriMist® auto drain leg system is designed to collect and to reuse the oil

accumulated at the low point trap in the oil mist header piping layout. The low point trap is created as a result of elevation changes in the header layout where a continuous slope back to the mist generator is not possible. For example, when the header pipe crosses an access road, the header is routed up, over, and down. The header pipe on the opposite side from the oil mist generator will have a low point trap and this is the location for an automated drain leg system. The collected oil is automatically pumped overhead back to a section of the main header where it can slope back to the oil mist generator.

III. Mechanical Operation Conditions

Normal regulated air pressure range: 40 - 60 Psig (2.8 – 4.1 Barg). Maximum instrument air inlet pressure: 125 Psig (8.6 Barg). Minimum instrument air inlet pressure: 80 Psig (5.5 Barg). Maximum fluid outlet pressure: 100 Psig (6.9 Barg). Air consumption: about 5 SCFM (8.5 NM3/H) @100 Psig (6.9 Barg). Operation frequency: Intermittent 2 - 3 Times Per Week; Duration: 5 – 10

Minutes.

IV. Installation The auto drain leg assembly is to be mounted against column structure at a

height of about 4 feet (1220 mm) from ground level using wrap-around braces or the drain leg can be bolted onto a mounting stand.

Mounting location should be near an instrument air supply source. Follow Typical Installation Detail Diagram to ensure all piping are

properly connected to the respective ports on the auto drain leg assembly. The drain leg manifold is to be mounted no more than 6 feet (1830 mm)

above ground level and at about 2 feet (610 mm) above the auto drain leg assembly. Operator must be able to reach the drain push button valve located on bottom of the drain leg manifold.

Ensure tubing line from the drain leg manifold is sloped toward the auto drain leg assembly.

Refer to oil transfer pump manual for proper grounding and other safety instructions.


P/N 77740248

V. Typical Installation Detail Diagram


P/N 77740248

VI. Commissioning

Ensure plugs have been installed in all connections that are not being used. Verify grounding to pump is done. Add an appropriate amount of oil about one gallon (3.8 Liters) to the

reservoir. Important: Test oil must be the same oil being used on the oil mist system.

Open the incoming air supply and oil return block valves. Unscrew the adjustment knob located on top of filter/regulator. Adjust

filter/regulator to achieve a regulated air pressure of 50-60 Psig (3.4 – 4.1 Barg).

Verify proper operation of pneumatic level switch and air operated pump. Turn the Operation Check Knob counter-clockwise to raise the float until the pump begins to operate. The arrow on the position indicator should be pointing upward.

Turn the knob clockwise back to its original position or to lower the float and pump should stop. The arrow on the position indicator should be pointing upward.

Visually check for oil leaks at all connections. Auto drain leg system is commissioned for operation.

VII. Routine Checks Check and replace broken or cracked sight glass on the drain leg manifold. Check drain leg manifold. If oil is collected in the drain leg manifold, just

manually push the button valve to drain the oil and to flush out any debris. Check mist pressure reading at the drain leg manifold. Pressure reading

should be about 20”WC (508 mm WC). Check proper air pressure setting at filter/regulator. Check and replace air filter element every 6 months. Check and replace broken or cracked pressure gauges. Check oil level in the reservoir. Oil level should not be full. Check operation of pump and pneumatic level switch. Check oil return line for blockage.

VIII. Troubleshooting Always make sure air and oil return block valves are open. If oil is visible in the drain leg manifold, manually push the button valve to

drain the oil and to flush out any debris. If mist pressure gauge reading is not stable, check for oil traps in nearby oil

mist header/drop piping. If reservoir is full with oil, check pneumatic level switch. If oil level float is raised and the pump does not operate, check pump.

Refer to pump manual for more details.


P/N 77740248

IX. Drawings and Parts

A. Auto Drain Leg Assembly - P/N 77720463


P/N 77740248

BILL OF MATERIALS

ITEM PART NO. QTY DESCRIPTION 1 D32911 1 1:1 DIAPHRAGM PUMP 2 77600807 1 AIR FILTER REGULATOR 3 77600853 1 OIL LEVEL CONTROLLER 4 77780111 1 OIL LEVEL SIGHT GAUGE - SS304 5 77600808 1 AIR PRESSURE GAUGE 6 77720339 1 ELBOW, STREET - 1/4 IN NPT SS316 7 41865037 1 1/2Tx3/8P MALE ELBOW CONNECTOR 316 S.S. 8 77500486 1 1/2Tx3/4P MALE CONNECTOR 316 S.S. 9 77500761 2 3/8Tx1/4P MALE ELBOW CONNECTOR 316 S.S. 10 77500690 1 HEX RED NIPPLE, 1I4 IN. NPT X 1I8 IN. NPT - SS 316 11 77500793 1 HEX NIPPLE, 3I4 IN. NPT - SS 316 12 76050083 1 PLUG, 1/2"NPT- HEX 3000#, SS316/316L 13 67020898 1 TUBING, 3/8"OD 035W WELD SS 316 14 67020936 1 TUBING, 1/2"OD 035W WELD SS 316 15 77720464 1 AUTO DRAIN LEG RESERVOIR WELDMENT - SS 316 TANK 16 77720469 1 AUTO DRAIN LEG RESV PUMP MNT PLATE, SS 316 17 77720467 1 PUMP SUCTION TEE WELDMENT- 3/4" SS 316 18 77780226 4 SCREW, HEX HD CAP 1/4-20 X 1" SS 304 19 77780303 4 WASHER, FLAT 1/4" SS 304 20 77780234 4 NUT, HEX FIN 1/4"-20 SS 304 21 77780222 8 WASHER, LOCK 1/4" SS 304


P/N 77740248

B. Pneumatic Level Switch - P/N 77600853

Turn Operation Check Knob Counter-Clockwise To Manually Raise The Float.

Turn Operation Check Knob

Clockwise To Manually Lower The Float.


P/N 77740248

C. Drain Leg Manifold –

P/N 77600873 (SS T304) P/N 77600820 (Alum)

Adjustable Span To Set Desired Float Level.


P/N 77740248

D. Air Operated Diaphragm Pump – P/N D32911


P/N 77740248

lubrimist® auto drain leg system installation and

Documents