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1866351/2
IM-P186-11
CTLS Issue 2
SRV66HC High Capacity
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
SRV66HC High Capacity Sanitary Pressure Reducing Valve
© Copyright 2021
1
IM-P186-11 CTLS Issue 2
Printed in GB
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Summary of Contents for Spirax Sarco SRV66HC
- 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 SRV66HC High Capacity Sanitary Pressure Reducing Valve © Copyright 2021 IM-P186-11 CTLS Issue 2 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: Protective Clothing
SRV66HC High Capacity Sanitary Pressure Reducing Valve IM-P186-11 CTLS Issue 2... -
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 SRV66HC all stainless steel sanitary pressure reducing valve is a double seated, high capacity, spring loaded proportional control valve which also benefits from having a quick release body clamp ring. It is designed for sanitary applications in the food processing, brewing/beverage and pharmaceutical industries. -
Page 6: Pressure/Temperature Limits
DN25 - DN100 Inlet/outlet PN16 / PN2.5 PN16 / PN6 PN16 / PN10 Spring range 0.3 - 1.1 bar g 0.8 - 2.5 bar g 2.0 - 5.0 bar g SRV66HC High Capacity Sanitary Pressure Reducing Valve IM-P186-11 CTLS Issue 2... -
Page 7: Installation
Figure 2, at the very minimum there should be a strainer with a separator (not shown) fitted upstream, these should be serviced at regular intervals. The SRV66HC 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. Valve spring Diaphragm Steam flow Controlled outlet pressure Fig. 3 How the SRV66HC works SRV66HC High Capacity Sanitary Pressure Reducing Valve IM-P186-11 CTLS Issue 2... -
Page 9: Start-Up And Adjustment
It is important that any downstream safety valve (D) is set such that the no-load set pressure of the SRV66HC (E) is below the safety valve reseat pressure. -
Page 10: Maintenance
6. Maintenance 6.1 General inspection While a programme of planned maintenance is always recommended, the Spirax Sarco SRV66HC 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 SRV66HC High Capacity Sanitary Pressure Reducing Valve IM-P186-11 CTLS Issue 2...
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Page 12: Spare Parts
PN rating. Example: 1 - Diaphragm, 'O' ring and gasket kit for a Spirax Sarco DN40 SRV66HC direct acting pressure reducing valve having a pressure range of 0.8 to 2.5 bar g and a PN16/PN6 rating and FPM diaphragm.
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