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0180050/5
IM-P018-02
CMGT Issue 5
No. 8
Fixed Temperature Liquid Expansion Steam Trap
Installation and Maintenance Instructions
1. Safety information
2. General product information
3. Installation
4. Commissioning
5. Operation
6. Maintenance
7. Spare parts
No. 8 Fixed Temperature Liquid Expansion Steam Trap
© Copyright 2024
1
IM-P018-02 CMGT Issue 5
Printed in GB
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Related Manuals for Spirax Sarco No. 8
Summary of Contents for Spirax Sarco No. 8
- Page 1 Installation and Maintenance Instructions 1. Safety information 2. General product information 3. Installation 4. Commissioning 5. Operation 6. Maintenance 7. Spare parts No. 8 Fixed Temperature Liquid Expansion Steam Trap © Copyright 2024 IM-P018-02 CMGT Issue 5 Printed in GB...
- Page 2 Group 2 of the above mentioned Pressure Equipment Directive. The products’ use on other fluids may be possible but, if this is contemplated, Spirax Sarco should be contacted to confirm the suitability of the product for the application being considered.
- Page 3 Consider double isolation (double block and bleed) and the locking or labelling of closed valves. Alternatively, fit Spirax Sarco depressurisation valves type DV (see separate literature for details). Do not assume that the system has depressurised even when the pressure gauge indicates zero.
- Page 4 Customers and stockists are reminded that under EC Health, Safety and Environment Law, when returning products to Spirax Sarco they must provide information on any hazards and the precautions to be taken due to contamination residues or mechanical damage which may present a health, safety or environmental risk.
- Page 5 Note: For additional information see Technical Information Sheet TI-P018-01. 2.2 Sizes and pipe connections ½" screwed BSP T Rp (ISO 7-1) or NPT. Fig. 1 No.8 fixed temperature liquid expansion steam trap No. 8 Fixed Temperature Liquid Expansion Steam Trap IM-P018-02 CMGT Issue 5...
- Page 6 Minimum operating temperature 0 °C (32 °F) Note: For lower operating temperatures consult Spirax Sarco. Designed for a maximum cold hydraulic test pressure of: 38 bar g (551 psi g) No. 8 Fixed Temperature Liquid Expansion Steam Trap IM-P018-02 CMGT Issue 5...
- Page 7 Open isolation valves slowly until normal operating conditions are achieved. Check for leaks and correct operation. Steam main No.8 trap Condensate to drain Condensate to return line Fig. 2 No. 8 Fixed Temperature Liquid Expansion Steam Trap IM-P018-02 CMGT Issue 5...
- Page 8 5. Operation The Spirax Sarco No.8 fixed temperature liquid expansion trap is one of the simplest thermostatic traps which is currently available. Under cold conditions, such as start-up, the oil filled element is fully off it's seat allowing unrestricted removal of cold condensate, air and other incondensables.
- Page 9 Isolation valves should be opened slowly to allow the pressure and temperature to build up in a controlled manner. Check for leaks. Condensate out Condensate in Fig. 3 No. 8 Fixed Temperature Liquid Expansion Steam Trap IM-P018-02 CMGT Issue 5...
- Page 10 Table 1 Recommended tightening torques Item Part (lbf ft) Adjustment lock-nut 80 - 85 (59 - 63) " A/F Valve seat ½" UNF 30 - 35 (22 - 26) No. 8 Fixed Temperature Liquid Expansion Steam Trap IM-P018-02 CMGT Issue 5...
- Page 11 'Available spares' and state the size and type of trap. Example: 1 - Element set for a ½" Spirax Sarco No.8 fixed temperature liquid expansion steam trap. Fig. 5 No. 8 Fixed Temperature Liquid Expansion Steam Trap...
- Page 12 No. 8 Fixed Temperature Liquid Expansion Steam Trap IM-P018-02 CMGT Issue 5...
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