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Primary fluid systems ECO-25, Instruction Manual

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Primary fluid systems ECO-25 Instruction Manual Download Page 5

 

5 

Manual Air Release 

 

 

 

 

 
 

 
 
 

The valve is shipped with a factory set pressure 
of 50 psig.  The diagram to the left shows a cut 
away view of the position of the diaphragm on 
the seat. 

 

To adjust the valve to relieve air or gas 
downstream: 
 

1.  Back off lock nut located beneath the 

colour coded handle. 

 
2.  Turn handle counter clockwise until 

approximately 1 inch of thread is 
exposed. 

 
3.  At this adjustment, the spring has relieved 

all tension from the diaphragm allowing 
air or gas to be vented downstream.  

 

Summary of Contents for ECO-25

Page 1: ...ation and instructions that must be read understood and followed to ensure that the equipment is installed operated and serviced in an appropriate manner Failure to do so before using may result in hazardous consequences and or improper operation Manufactured by PRIMARY FLUID 1050 Cooke Blvd Burlington Ontario L7T 4A8 SYSTEMS INC Tel 905 333 8743 Fax 905 333 8746 Call Toll Free 1 866 324 6422 E Ma...

Page 2: ...sure adjustments through the range 7 150 PSIG Eco valve is available in several configurations to meet your needs such as threaded socket flanged union in DIN BSPT and American Standard Built in downstream manual air release for ease of pump priming Built in anti siphon Back Pressure Valve Anti siphon Diaphragm Back Pressure Valves serve two primary functions The first is to provide a constant dis...

Page 3: ...he valve body the ports are normally not drilled or tapped for a gauge connection See gauge installation instructions on page 5 Caution The gauge port is solely for the installation of the gauge and cannot be used for the bleeding or venting of the system Improper operation and or hazardous consequences could result See gauge installation instructions Pressure Relief Valves Reason for Selection an...

Page 4: ...alled on the discharge line of a pump and should be located as close as possible to the metering pump The valve is of a two port design and is required to be installed on a branch tee for piping back to the supply tank or feed side of the pump Never install shut off isolation valves between pump discharge and in line pressure relief valves When using in conjunction with a back pressure control val...

Page 5: ...n of the diaphragm on the seat To adjust the valve to relieve air or gas downstream 1 Back off lock nut located beneath the colour coded handle 2 Turn handle counter clockwise until approximately 1 inch of thread is exposed 3 At this adjustment the spring has relieved all tension from the diaphragm allowing air or gas to be vented downstream ...

Page 6: ... examples only Consult your engineering department for the appropriate installation for your application or call the factory for advice Example A Solenoid Driven Pumps Rated Under 150 psig Example B System arrangement for solenoid driven above 150 psig or motor driven pumps ...

Page 7: ...7 Exploded View Back Pressure Pressure Relief Valve 1 4 ECO 25 3 8 ECO 38 1 2 ECO 50 ECO Valves ...

Page 8: ... steel Connection A NPT B BSPT C S W N A D S W Metric E Flg ASME F Flg DIN G Union Thr d Material TFE PTFE EPDM E EPDM V viton Size 25 1 4 S S valve 38 3 8 S S valve 50 1 2 S S valve Colour G Green 1 4 valve B Brown 3 8 valve Y Yellow 1 2 valve O Ring seal V viton E EPDM T PTFE encapsulated viton Connection NPT NPT BSPT BSPT SOC S W Imperial SOC M S W Metric Size 25 1 4 S S valve 38 3 8 S S valve ...

Page 9: ...trength as the temperature increases therefore the working pressure must be reduced accordingly The following factors will apply Temperature Correction Factors Thermoplastics Operating Factors Temperatures NR Not Recommended Recommended for continuous drainage pressure only F C PVC CPVC PP PVDF 70 21 1 00 1 00 1 00 1 00 80 27 0 90 0 96 0 97 0 95 90 32 0 75 0 92 0 91 0 87 100 38 0 62 0 85 0 85 0 80...

Page 10: ...10 ...

Page 11: ...nts and instructions set forth herein are based on the best information and practices known to Primary but it should not be assumed that every acceptable safety procedure is contained herein Of necessity Primary cannot guarantee that actions in accordance with such statements and instructions will result in the complete elimination of hazards and it assumes no liability for accidents that may occu...

Page 12: ...12 Notes ...

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