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Valve reference data
　
Metric Equivalent Charts
 
Linear Conversion Table From Fractional Inches to Millimeters

inches		  
mm		  
inches		  
mm
               
1/64   0.016 0.397 33/64   0.516 13.097
1/32 0.031 0.794 17/32 0.531 13.494
3/64 0.047 1.191 35/64 0.547 13.891
1/16 0.063 1.588 9/16 0.563 14.288
5/64 0.078 1.984 37/64 0.578 14.684
3/32 0.094 2.381 19.32 0.594 15.081
7/64 0.109 2.778 39/64 0.609 15.478
1/8 0.125 3.175 5/8 0.625 15.875
9/64 0.141 3.572 41/64 0.641 16.272
5/32 0.156 3.969 21/32 0.656 16.669
11/64 0.172 4.366 43/64 0.672 17.066
3/16 0.188 4.763 11/16 0.688 17.463
13/64 0.203 5.519 45/64 0.703 17.859
7/32 0.219 5.556 23/32 0.719 18.256
15/64 0.234 5.953 47/64 0.734 18.653
1/4 0.250 6.350 3/4 0.750 19.050
17/64 0.266 6.747 49/64 0.766 19.447
9/32 0.281 7.144 25/32 0.781 19.844
19/64 0.297 7.541 51/64 0.797 20.241
5/16 0.313 7.938 13/16 0.813 20.638
21/64 0.328 8.334 53/64 0.828 21.034
11/32 0.344 8.731 27/32 0.844 21.431
23/64 0.359 9.128 55/64 0.859 21.828
3/8 0.375 9.525 7/8 0.875 22.225
25/64 0.391 9.922 57/64 0.891 22.622
13/32 0.406 10.319 29/32 0.906 23.019
27/64 0.422 10.716 59/64 0.922 23.416
7/16 0.438 11.113 15/16 0.938 23.813
29/64 0.453 11.509 61/64 0.953 24.209
15/32 0.469 11.906 31/32 0.969 24.606
31/64 0.484 12.303 63/64 0.984 25.003
1/2 0.500 12.700 1 1.000 25.40
1 inch = 25.4 millimeters
 
English to Metric Conversion Table
Units Change to Multiply by
Inches Millimeters 25.40
Inches Centimeters 2.54
Inches Meters .0254
Feet Meters .3048
Miles Kilometers 1.609347
Sq. Inches Sq. Centimeters 6.452
Sq. Feet Sq. Meters .0929
Cu. Inches Cu. Centimeters 16.3872
Cu. Feet Cu. Meters .02832
U.S. Gallons Liters 3.7854
Pounds Kilograms .45359
 
Metric to English Conversion Table
Units Change to Multiply by
Millimeters Inches .03937
Centimeters Inches .39371
Meters Inches 39.371
Meters Feet 3.281
Kilometers Miles .62137
Sq. Centimeters Sq. Inches .1550
Sq. Meters Sq. Feet 10.7649
Cu. Centimeters Cu. Inches .061
Cu. Meters Cu. Feet 35.314
Liters U.S. Gallons .26417
Kilograms Pounds 2.20462
     
Physical Properties
of Thermoplastic Piping Materials
ASTM Test
Methods
Polypropylene		 Properties Material
       
PVC
12454-B		 CPVC
23447-B		 PVDF  
 
General          
D-792 Specific Gravity 1.38 1.50 1.76 0.905
 
D-570 Water Absorption
% 24 Hrs. @ 73oF		 0.05 0.05 0.04 0.02
Mechanical          
D-638 Tensile Strength
psi @ 73oF		 7,300 7,200 6,000 4,600
 
D-638 Modulus of
Elasticity in Tension
psi @ 73oF x 105		 4.2 3.7 2.1 2.0
 
D-790 Flexural Strength
psi		 14,500 15,600 9,700 7,000
 
D-256 Izod Impact
Strength
@ 73oF (Notched)		 1.1 2.0 3.8 0.8
 
Thermal          
D-696 Coefficient of
Thermal Expansion
in/in/oF x 10-5		 3.0 3.8 7.9 5.0
 
C-177 Thermal
Conductivity
BTU/HR/Sq. Ft./oF/in		 1.2 0.95 0.79 1.2
 
D-648 Heat Distortion
Temp. oF @ 66 psi		 NA NA 284 195
 
D-648 Heat Distortion
Temp. oF @ 264 psi		 163 212 194 140
 
  Resistance to
Heat oF at
Continuous Drainage		 140 210 280 180
Flammability          
D-2863 Limiting Oxygen
Index (%)		 43 60 44 17
 
E-84 Flame Spread (%) 15-20 15 0 NA
 
E-84 Smoke Generation >300 >350 >50 >400
 
  Underwriters
Lab Rating (Sub. 94)		 94V-O 94V-O 94V-O 94HB
 
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