Spirax Sarco Spira-trol LE33

To Next Page

IM-S24-42 CTLS Issue 10

1. Safety information

2. General product information

3. Installation and

commissioning

4. Maintenance:

DN15 - DN100

5. Maintenance:

DN125 - DN300

6. Spare parts

Printed in France

3740050/10

Spira-trol

K and L Series

Two-port Control Valves

Installation and Maintenance Instructions

IM-S24-42

CTLS Issue 10

Main Page

Need help?

Do you have a question about the Spirax Sarco Spira-trol LE33 and is the answer not in the manual?

Summary

Safety information

Safety note - Handling precautions

Precautions for handling PTFE components, especially regarding heat and fumes.

1.1 Intended use

Verify product suitability for application and compliance with directives.

1.4 Hazardous liquids or gases in the pipeline

1.5 Hazardous environment around the product

1.7 Pressure systems

Procedures for isolating and venting pressure systems safely.

1.8 Temperature

Manage temperature-related hazards like burns and PTFE fumes.

Prevention of waterhammer

General product information

2.1 General description

2.3 Pressure;temperature limits

Pressure/temperature limits for KE43 carbon steel valves, including bellows.

2.4 Pressure;temperature limits

Pressure/temperature limits for KE61/KE63 stainless steel valves, including bellows.

2.5 Pressure;temperature limits

Pressure/temperature limits for KE71/KE73 SG iron valves, including bellows.

2.6 Pressure;temperature limits

Pressure/temperature limits for KEA carbon steel valves, including bellows.

2.7 Pressure;temperature limits

Pressure/temperature limits for KEA stainless steel valves, including bellows.

2.8 Pressure;temperature limits

Pressure/temperature limits for KEA SG iron valves, including bellows.

2.9 Pressure;temperature limits

Pressure/temperature limits for LE31/LE33 cast iron valves.

2.10 Pressure;temperature limits

Pressure/temperature limits for LE43 carbon steel valves.

2.11 Pressure;temperature limits

Pressure/temperature limits for LE63 carbon steel valves.

2.12 Pressure;temperature limits

Pressure/temperature limits for LEA31/LEA33 carbon steel valves.

2.13 Pressure;temperature limits

Pressure/temperature limits for LEA43 carbon steel valves.

2.14 Pressure;temperature limits

Pressure/temperature limits for LEA63 carbon steel valves.

Installation

3.1 Check materials, pressure and temperature and their maximum values.

Maintenance: DN15 to DN100

Table 1 Recommended tightening torques - Control valve sizes DN15 to DN100

4.2 Removal of valve bonnet

4.3 Replacement of PTFE gland packings

4.4 Replacement of graphite gland packing

4.5 Removal and refitting of the valve plug;stem assembly and seat

Procedure for removing and refitting the valve plug/stem and seat.

4.6 Refitting the bonnet

Detailed steps for correctly refitting the valve bonnet.

Tighten the gland nut (18) until:

Bellows sealed valves

4.7.1 Procedure for renewing the bellows (B) and (C) assembly

Steps to renew bellows assemblies (B) and (C).

4.7.2 Procedure for renewing the bellows (D) assembly

Steps to renew bellows assembly (D).

Maintenance: DN125 to DN300

Table 2 Recommended tightening torques - Control valve sizes DN125 to DN300

5.2 Removal of the valve bonnet

5.3 Replacement of PTFE gland packings

5.4 Replacement of graphite gland packings

5.5.1 Unbalanced valves

Procedure for plug/stem/seat removal/refitting in unbalanced valves.

5.5.2 Balanced valves

Procedure for plug/stem/seat removal/refitting in balanced valves.

5.6 Refitting the bonnet

Tighten the gland nut (11) until: