GP140 Series Diaphram Seal
Exceptional gauge protection while maintaining accuracy and sensitivity, more compact design, available in 1/4†or 1/2†process connections
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Process Pressure Gauge Chemical Seals & Isolators
The GP140 Series includes 3D Instruments’ rugged line of gauge protectors and diaphragm seals. All seals are precision micro-matched at our facility for accuracy and reliability. Because our Direct Drive bourdon element has a fluid path volume of only 2 cc or less, it has a 20 times smaller volume than standard C-type. The resultant displacement of 0.08 cc or less allows 3D to offer unmatched gauge protection while maintaining accuracy and sensitivity better than any other diaphragm pressure gauge seal available.
- Welded body constructed of 316 stainless steel or Hastelloy C (other materials available)
- Metallic diaphragm manufactured from 316L stainless steel or Hastelloy C (other materials available)
- Available in 1/4” or 1/2” process connections
- Available with process flush port
- More compact design than industry standard diaphragm pressure gauge seals (1-1/2” hex, max)
- Low effects on accuracy: 0.05% on a 30 PSI Gauge, 0.02% on a 60 PSI Gauge. No accuracy adders on ranges from 100 PSI to 2000 PSI. )
- Low temperature effects: 0.2% per 10°F on a 100 PSI gauge; 0.003% per 10°F on a 1000 PSI gauge for models KT & KET
OPTIONAL FEATURES:
- Flushing connection
- Connecting line (316 stainless steel capillary)
- Clean-out capability without disturbing fill
- Highly corrosive chemical environments
- Highly viscous processes
- Processes prone to plugging or fouling
- Very high pressure pulsations
- Service pressures of 30 to 2000 PSI
- Ranges below 100 PSI have a small accuracy effect
| GP140X-X/X | |
| LOW TEMPERATURE EFFECT | |
| 316 SS upper & lower | KT |
| 316 SS upper Hastelloy C lower & diaphragm | KET |
| GAUGE FITTING: | |
| 1/4 inch NPT process connection | B |
| 1/2 inch NPT process connection | C |
| PROCESS FITTING: | |
| 1/4 inch NPT process connection | B |
| 1/2 inch NPT process connection | C |
