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Features
  • Zero leakage up to 95% of cracking pressure
  • Positive reseat at high percentage of cracking pressure
  • Accurate set pressure
  • Wide range of cracking pressure
  • Tamper-proof adjustment
  • PED certifications and CE marking available for most models
Note:
Proper filtration is recommended to prevent damage to sealing surfaces.
Repair Kit:
In normal service, the only part(s) which may require replacement is(are) the seal(s). A repair kit may be ordered by placing a ?K/? in front of the complete part number (i.e. K/5159B?2MP?20).
1/8" size: for cracking pressure 1201?2400 psig, ?M? is 3.95, ?B? and ?H? are 1.00 1" size: for cracking pressure 1201?2400 psig, ?M? is 7.32 1 1/4" size: not available above 1200 psig
Unit of Measure

Specifications

Series

N/A 5100
Body Material1 N/A Brass

O-Ring Material

N/A Teflon®

Valve Size

N/A 1/8 in

End Connections (Inlet/Outlet)

N/A Inline male pipe by female pipe

Operating Pressure

N/A 20 to 2400 psig1.4 to 165 bar

Cracking Pressure

N/A 20 to 2400 psig

Operating Temperature

N/A -100 to 400 ºF
Cracking Pressure Tolerance2 N/A ±5%

Weight

N/A .38 lbs

Reseal Pressure and Leakage

N/A

Reseal Pressure
The reseal point is the point at which the valve seals absolutely tight so that there is no leakage detectable by normal means of measurement. The point at which the valve closes, cutting off virtually all flow, is called the reseat point. The reseat point is substantially above the reseal.

  Crack Pressure Reseal Pressures
Elastomeric seals C.P. > 100 psi 90% of C.P.
  C.P. <100 psi 70% to 89% of C.P.
Teflon® seals C.P. > 450 psi 90% of C.P.
  C.P. < 450 psi 52% to 90% of C.P.
     
Leakage at reseal pressure     
     
Elastomeric seals Ascending pressure = zero up to 95% of cracking pressure
  Descending pressure = zero at reseal and below
Teflon® seals Ascending pressure = zero up to reseal pressure, then 10cc/min between reseal and cracking pressure
  Descending pressure = zero at reseal, except with cracking pressure below 451 psi, then 1cc/min maximum
     
First crack pressure after standing unactuated for a prolonged period  
     
Set pressure of? 5-19 psi 125% of cracking pressure
  20-29 psi 120% of cracking pressure
  30-49 psi 115% of cracking pressure
  50 psi and higher 110% of cracking pressure

  • 1 For PED applications, brass bodies are limited to a maximum temperature of +100°F (+38°C)
    Steel is not available for PED applications.
  • 2 Cracking pressures below 20 psig have a tolerance of ±20%.


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1533 Gehman Road | Harleysville, PA 19438 | Phone: 267-933-6300 | Fax: 267-933-6305 | Toll Free: 800-645-6733 | Email: [email protected]
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