One-Piece Orifice Plate: Innovative Engineering For Corrosion Protection
One-Piece Orifice Plate: Innovative Engineering For Corrosion Protection
One-Piece Orifice Plate: Innovative Engineering For Corrosion Protection
GPT is pleased to offer a one-piece orifice plate design for pipeline flow restriction. The
GPT one-piece orifice plate incorporates spring-energized PTFE radial face seals and
elastomeric o-ring backup seals which are completely encapsulated in a composite seal
retainer which makes the orifice plate one-piece and simple to install. This eliminates the
need for conventional orifice plates, plate holders and separate gaskets. This orifice plate
design substantially reduces residual flange/bolt stress in orifice flanges and improves
overall sealing performance under even the most extreme operating conditions in all
hydrocarbon production, injection and process applications.
NPS PT* RT OD OD OD OD OD OD OD
1/2” .125 .260 1.813 2.063 2.063 2.063 2.438 2.438 2.688
Composite Seal Retainer
3/4” .125 .260 2.188 2.563 2.563 2.563 2.688 2.688 2.938
Spring-Energized
1” .125 .260 2.563 2.813 2.813 2.813 3.063 3.063 3.313 Radial Face Seal
1-1/4” .125 .260 2.933 3.188 3.188 3.188 3.438 3.438 4.063
Metal Orifice Plate
1-1/2” .125 .260 3.313 3.688 3.688 3.688 3.813 3.813 4.563
2-1/2” .125 .260 4.813 5.063 5.063 5.063 6.438 6.438 6.563
10” .250 .437/.500 13.313 14.188 14.063 15.688 17.063 17.063 18.688
12” .250 .437/.500 16.063 16.563 16.438 17.938 19.563 20.438 21.563
14” .250 .437/.500 17.688 19.063 18.938 19.313 20.438 22.688 N/A
16” .375 .625/.687 20.188 21.188 21.063 22.188 22.563 25.188 N/A
18” .375 .625/.687 21.563 23.438 23.313 24.063 25.063 27.688 N/A
20” .375 .625/.687 23.813 25.688 25.438 26.813 27.438 29.688 N/A
24” .375 .625/.687 28.188 30.438 30.188 31.063 32.938 35.438 N/A
* Beta Ratios need to be specified to determine adequate plate thickness. Some I.D. may require review.
GPT 1:13