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When it comes to flow...we’re instrumental.

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7310 Series

Installation Instructions

FLOW METER LIMITED WARRANTY

Meters are warranted against defects in materials and workmanship to the original user for a period of thir-
teen (13) months from the date of factory shipment, provided the meter is installed, operated and maintained 
in accordance with King Instrument Company’s instructions and recommendations.
This warranty does not apply if failure is caused or contributed to by any of the following: improper handling, 
improper storage, abuse, unsuitable application of the product, lack of reasonable and necessary mainte-
nance, use exceeding suggested pressure and temperature maximums, improper packaging for return, or 
repairs made or attempted to be made by anyone other than King Instrument Company, Inc. 
KING INSTRUMENT COMPANY, INC. MAKES NO WARRANTY AS TO THE FITNESS OF ITS PRODUCTS FOR SPECIFIC 
APPLICATIONS.
This warranty is valid for the original end-user only and does not apply to products that have been damaged 
or modified. This warranty is non-transferrable and is limited to replacement or repair. The liability of King In-
strument Company arising out of its supply of the products, or their use, shall not in any case exceed the cost 
of correcting defects in the products as set forth above. 
THIS WARRANTY IS A LIMITED WARRANTY AND SHALL BE IN LIEU OF ANY OTHER WARRANTIES, EXPRESSED OR 
IMPLIED, INCLUDING BUT NOT LIMITED TO ANY IMPLIED WARRANTY OR MERCHANTABILITY OR FITNESS FOR A 
PARTICULAR PURPOSE. THERE ARE NO OTHER WARRANTIES WHICH EXIST BEYOND THE DESCRIPTION OR FACE 
HEREOF. 
IN NO EVENT SHALL KING INSTRUMENT COMPANY BE LIABLE FOR LOSS OF PROFITS, INDIRECT, CONSEQUEN-
TIAL OR INCIDENTAL DAMAGES.
Products should be returned, prepaid, to King Instrument Company, Inc. with proof of purchase. Call factory 
for Return Merchandise Authorization (RMA) number and return instructions.

THIS IS IMPORTANT INFORMATION.  
READ IT CAREFULLY BEFORE BEGINNING WORK.

1) Inspect meter for damage that may have occurred during shipping.  
  Report any damage to the container to the freight carrier  
 immediately. 
2)  Make sure your pressure, temperature, fluid and other requirements  
  are compatible with the meter (including o-rings.)
3)  Select a suitable location for installation to prevent excess stress on  
  the meter which may result from:
  a)  Misaligned pipe.
  b)  The weight of related plumbing.
  c)  “Water Hammer” which is most likely to occur when flow is    
    suddenly stopped as with quick closing solenoid operated valves.  
    (If necessary, a surge chamber should be installed. This will also  
    be useful in pressure start-up situations.)
  d)  Thermal expansion of liquid in a stagnated or valve  
  isolated 

system.

  e)  Instantaneous pressurization which will stress the meter and    
    could result in tube failure.

NOTE: 

In closed thermal transfer or cooling systems, install the meter 

in the cool side of the line to minimize meter expansion and contrac-
tion and possible fluid leaks at the threaded connections.
4) Handle the meter carefully during installation.
  a)  Use an appropriate amount of teflon tape on external pipe 

 

    threads before making connections. Do not use paste or stick   
    type thread sealing products.

5) Install the meter vertically with the inlet port at the bottom.
6) Meters with stainless steel fittings will support several feet of pipe  
  as long as significant vibration or stress resulting from misaligned  
  pipe are not factors.

ADDITIONALLY

7310 Series meters are designed for vertical installation only. (Inlet at 
bottom, Outlet at top)

Max Non-Shock Pressure and Temperature

Fitting

Temp

Pressure

316LSS

PVC & PVDF

200° F

130° F 

200 psig (41W-103W)

150 psig (41W-72W) 

125 psig (90W-103W)

Ambient Temp. 33° F -125° F

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