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1866350/6
IM-P186-09
CTLS Issue 6
SRV66
Sanitary Pressure Reducing Valve
Installation and Maintenance Instructions
1. Safety information
2. General product information
3. Installation
4. Operation
5. Commissioning
6. Maintenance
7. Spare parts
SRV66 Sanitary Pressure Reducing Valve
© Copyright 2021
1
IM-P186-09 CTLS Issue 6
Printed in GB
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Summary of Contents for Spirax Sarco SRV66
- Page 1 Sanitary Pressure Reducing Valve Installation and Maintenance Instructions 1. Safety information 2. General product information 3. Installation 4. Operation 5. Commissioning 6. Maintenance 7. Spare parts SRV66 Sanitary Pressure Reducing Valve © Copyright 2021 IM-P186-09 CTLS Issue 6 Printed in GB...
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Page 2: Safety Information
These fluids are in Group 2 of the above mentioned Pressure Equipment Directive. The product’s 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: Pressure Systems
SRV66 Sanitary Pressure Reducing Valve IM-P186-09 CTLS Issue 6... -
Page 4: Residual Hazards
Customers and stockists are reminded that under UK and 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: General Product Information
2. General product information 2.1 Description The SRV66 is an angle pattern self-draining sanitary pressure regulating valve of all 316 type stainless steel construction suitable for use on steam, water and inert industrial gases. It is available with sanitary clamp compatible connections to ISO 2852, requires no external pressure sensing line and has clean in place (CIP) and sterilise in place (SIP) capability. -
Page 6: Pressure/Temperature Limits
Inlet/outlet rating PN10/PN2.5 PN10/PN6 PN10/PN10 Spring range 0.3 - 1.1 bar g 0.8 - 2.5 bar g 1.0 - 5.0 bar g Maximum permitted outlet pressure = 1.5 times set pressure SRV66 Sanitary Pressure Reducing Valve IM-P186-09 CTLS Issue 6... -
Page 7: Installation
Figure 2, at the very minimum there should be a separator and strainer fitted upstream, these should be serviced at regular intervals. The SRV66 should always be fitted with the inlet horizontal and the spring housing directly above the valve. Most applications will require a safety valve to be installed downstream in case of accidental overpressure. -
Page 8: Operation
Rotating the adjusting screw clockwise Adjustment screw increases the outlet pressure. Spring clip Control spring Diaphragm Controlled outlet pressure Fig. 3 How the SRV66 works Steam flow SRV66 Sanitary Pressure Reducing Valve IM-P186-09 CTLS Issue 6... -
Page 9: Start-Up And Adjustment
It is important that any downstream safety valve (F) is set such that the no-load set pressure of the SRV66 is below the safety valve reseat pressure. SRV66 Fig. -
Page 10: Maintenance
6. Maintenance 6.1 General inspection While a programme of planned maintenance is always recommended, the Spirax Sarco SRV66 will give long and trouble free service if correctly selected, installed and kept free of dirt and foreign matter. Dirt and foreign matter are most likely to collect during installation and later trouble can be avoided by inspecting the installation after a few days. - Page 11 Fig. 6 Maintenance SRV66 Sanitary Pressure Reducing Valve IM-P186-09 CTLS Issue 6...
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Page 12: Spare Parts
PN rating. Example: 1 - Diaphragm and 'O' ring and gasket kit for a Spirax Sarco DN25 SRV66 direct acting pressure reducing valve having a pressure range of 1 to 5 bar, a PN10/PN6 rating and FPM diaphragm.
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