Van Air Systems ID35 User Manual

INSTALLATION & OPERATION INSTRUCTIONS

FOR

COMPRESSED AIR/GAS

IN-LINE DESICCANT DRYER

MODEL

ID-35 (P/N 80-1364)

September 2009

P/N 32-0288-B

WARNING

DO NOT REMOVE, REPAIR, OR REPLACE ANY ITEM ON THE DRYER WHILE IT IS PRESSURIZED. DEPRESSURIZE THE DRYER COMPLETELY BEFORE STARTING INSTALLATION AND/OR MAINTENANCE PROCEDURES. SERIOUS PERSONAL INJURY MAY RESULT IF THESE SAFETY RULES ARE NOT FOLLOWED.

DO NOT OPERATE THIS PRESSURE VESSEL ABOVE MAXIMUM WORKING PRESSURE (MWP) AND/OR MAXIMUM OPERATING TEMPERATURE (OF) AS SHOWN ON THE ASME DATA PLATE.

THIS ASME CODE VESSEL MUST BE PROTECTED BY A PRESSURE RELIEF VALVE. Refer to OSHA 1910.169 Par. b, Sub. Par (3) and ASME Boiler and Pressure Vessel Code, Section VIII, Division 1, UG-125 through UG-136. Also comply with all applicable state and local codes.

DO NOT WELD, GRIND, OR SAND VESSEL, OR IT WILL NOT BE SAFE TO OPERATE. (Note: Any alteration to the vessel will void the ASME Code Certification and the warranty.)

INSPECT OUTSIDE AND INSIDE OF VESSEL REGULARLY FOR CORROSION AND DAMAGE (I.E., DENTS GOUGES OR BULGES). ANY DAMAGE TO THE VESSEL CAN MAKE IT SAFE TO USE. IF DAMAGED, TAKE OUT OF SERVICE IMMEDIATELY.

USE THE PROPER SAFETY RULES FOR THE GAS BEING PROCESSED.

DO NOT REMOVE THE FILL PORT UNTIL ALL PRESSURE IS OUT OF THE VESSEL.

PAGE 1

SECTION 1 SPECIFICATIONS

1.0 PURPOSE OF OPERATION

The Van Air In-Line Desiccant Dryer is designed to be filled with adsorbent desiccant such as silica gel.

The saturated air or gas enters the bottom side connection (inlet) on the vessel and travels through the bed of adsorbent material.

Dry air or gas exits the top side connection (outlet) on the vessel.

FIGURE 1 DRYER DETAILS

FIGURE 3 DRYING TIME USING SILICA GEL

(at rated flow at 100 PSIG)

INLET

TEMPERATURE

60°F 80°F

100°F

TIME

(MINUTES)

542 283 156

FIGURE 2 MAXIMUM CAPACITIES -SCFM (Nm3/hr)

MAXIMUM WORKING

PRESSURE

250 PSIG

5 PSIG

0.3 Bar

9.6

10 PSIG

0.7 Bar

7.5

12.1

20 PSIG

1.4 Bar

10.5

16.9

40 PSIG

2.8 Bar

27.3

60 PSIG

4.1 Bar

37.0

80 PSIG

5.5 Bar

46.6

90 PSIG

6.2 Bar

51.4

100 PSIG

6.9 Bar

56.3

125 PSIG

8.6 Bar

69.1

150 PSIG

10.3 Bar

80.4

200 PSIG

13.8 Bar

106.1

250 PSIG

17.2 Bar

130.2

SECTION 2 INSTALLATION

2.1 LOCATION

Proper performance depends on the correct location of the unit. Locate the dryer at the lowest temperature and highest pressure possible in the system. If there is a pressure regulator in the system, install the dryer upstream of the regulator.

Make sure that the system pressure does not exceed the 250 PSIG maximum working pressure of the vessel.

IMPORTANT ALWAYS PROCESS AIR THROUGH THE DRYER AT THE LOWEST POSSIBLE TEMPERATURE AND THE HIGHEST PRACTICAL PRESSURE.

2.2 PIPING AND ANCILLARY EQUIPMENT

If the dryer is being installed in an existing piping system, make sure that the pipe is free of scale and rust.

The dryer is supported by the piping system. Adequate pipe supports must be used to prevent damage to the pipeline and dryer.

2.2-A ISOLATION VALVES

Using Figure 3 as a reference, make the necessary piping connections into the dryer.

Inlet and outlet isolation valves are required to isolate the dryer when the adsorbent material is changed.

PAGE 2

These valves will also aid in start up and shutdown of the dryer. The inlet isolation valve should be mounted before the pressure relief valve. The outlet isolation valve should be installed on the dryer outlet. A manual valve and a tee should be installed on either the inlet or outlet side of the dryer to depressurize the unit.

A bypass is not recommended, as contamination can go downstream while the unit is maintained. The bypass valve can also accidentally be left open.

2.2-B OPTIONAL PRESSURE RELIEF VALVE (p/n 14-2213)

A pressure relief valve should be installed to conform to OSHA safety standards. Refer to OSHA Standard Section 1910.169, paragraph “b”, subparagraph “3”. Also comply with all applicable federal, state and local codes concerning pressure vessels.

2.2-C OPTIONAL PRESSURE GAUGE (p/n 29-0160)

An optional pressure gauge is available to mount in the 1/4" NPT connection on the fill port.

2.2-D AFTERFILTER (p/n 84-23256)

The installation of an F200-55-1/2-RB-MD-PD6 afterfilter prevents any adsorbent material from going downstream.

The afterfilter should be installed upstream of the outlet isolation valve. This will allow the filter to be isolated from the air system when the dryer is isolated for maintenance.

+ 2 hidden pages