Applications & Features

  • Calibration / Flushing Ring Intended for use with model HFF and HFP
  • Standard flange sizes from ANSI 2” to 4”. Additional sizes available on request
  • Pressure ratings to ANSI class 2500.
  • Other flange standards available

If you’re tired of your DP Transmitters drifting, then you’ll want to read about our Temperature Compensation Remote Seals.

Ordering Information

Note: The alignment tab is included when used with model HFF and HFP.
For others reduce the thickness dimension by “E” shown above  

ANSI RF Flange Flush Ring Dimensions

Flange Size “B” “C” “D” “E” “A” ¼”NPT "A" ½”NPT
2.0" 3.84" 2.12" 364,00 .10” 1.00" 1.33"
3.0" 5.23" 3.60" 502,00 .10” 1.00" 1.33"
4.0" 6.41" 3.60" 621,00 .10” 1.00" 1.33"

Other Sizes Available on Request – Consult Factory

DIN RF Flange Flush Ring Dimensions

Flange Size “B” “C” “D” “E” “A” ¼”NPT "A" ½”NPT
DN 50 4.22" 2.40" 4.02" .10” 1.00” 1.33"
DN 80 4.65" 3.60" 5.45" .10” 1.00” 1.33"
DN 100 6.44" 3.60" 6.24" .10” 1.00” 1.33"

Other Sizes Available on Request – Consult Factory

ANSI RTJ Flange Flush Ring Dimensions

Flange Size “A” ¼” NPT “A” ½” NPT “B” “C” “F” Grv.#
2”-150# 1.50” 1.70” 4.00” 2.12” 3.25” R22
3"-150# 1.50” 1.70” 5.25” 3.60” 4.50” R29
4"-150# 1.50” 1.70” 6.75” 3.60” 5.88” R36
2"-300# 1.63” 1.83” 4.25” 2.12” 3.25" R23
3"-300# 1.63” 1.83” 5.75” 3.60” 4.88” R31
4"-300# 1.63” 1.83” 6.88” 3.60” 5.88" R37
2"-600# 1.63” 1.83” 4.25” 2.12” 3.25" R23
3"-600# 1.63” 1.83” 5.75” 3.60” 4.88" R31
4"-600# 1.63” 1.83” 6.88” 3.60” 5.88" R37
2"-900# 1.63” 1.83” 4.88” 2.12” 3.75" R24
3"-900# 1.63” 1.83” 6.12” 3.60” 4.88" R31
4"-900# 1.63” 1.83” 7.12” 3.60” 5.88" R37
2"-1500# 1.63” 1.83” 4.88” 2.12” 3.75" R24
3"-1500# 1.63” 1.83” 6.62” 3.60” 5.38" R35
4"-1500# 1.63” 1.83" 7.62” 3.60” 6.38" R39
2"-2500# 1.63” 1.83” 5.25” 2.12” 4.00" R26
3"-2500# 1.75” 1.95” 6.62” 3.60” 5.00" R32
4”-2500# 1.88” 2.08” 7.99” 3.60” 6.18” R38

Other Sizes Available on Request – Consult Factory

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