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GP140 Series Diaphram Seal

PROCESS PRESSURE GAUGE CHEMICAL SEALS/ ISOLATORS

The GP1000 Series Is 3D Instruments' rugged product line of gauge protectors and diaphragm seals. All seals are precision micro-matched at the 3D factory for accuracy and reliability. Because 3D's Direct-Drive Bourdon Element has a fluid path volume of only 2 cc or less, it has about 20 times less volume than a standard C-type. The resultant displacement of 0.88 cc or less allows 3D to offer gauge protection unmatched in the industry, while maintaining accuracy and sensitivity better than any other gauge and seal combination available.

GP140 METALLIC DIAPHRAGM SERIES

Features:

  • Welded body of 316 stainless steel or Hastelloy C (other materials available).
  • Metallic diaphragm of 316L stainless steel or Hastelloy C (other materials available).
  • Available in 1/4" or 1/2" process connections.
  • Available with process flush port.
  • A more compact design than industry standard seals (1-1/2 inch hex, max.)
  • Low effects on accuracy: 1% on a 100 psi gauge* 0.1% on a 1000 psi gauge. *Can be custom spanned for greater accuracy (models KT & KET).
  • Low temperature effects: (Models KT & KET) 0.2% per 10 deg. F on a 100 psi gauge. 0.03% per 10 deg. F on a 1000 psi gauge.

Applications:

  • Highly corrosive chemical environments.
  • Highly viscous processes.
  • Processes prone to plugging or fouling.
  • Very high pressure pulsations.
  • Service pressures 100-2000**psi.
  • Not recommended for services below 100 psi without custom span adjustment.
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

DIAPHRAGM GAUGE ISOLATORS SPECIFICATION GUIDE

Model Number: Used with gauge:

Welded diaphragm or Removable diaphragm

Process or inlet connection size:
a. Threaded type: 1/4" npt, 1/2" npt, 1"npt, Other
b. Flanged type: Pipe size Pipe schedule ASA pressure rating Flange facing

Instrument or outlet connection size: 1/4" npt, 1/2" npt

Material of wetted parts:
a. Lower housings
b. Diaphragm
c. "O" rings

Material of upper housing

Fill liquid: Glycerin, Silicone, Mineral Oil, Fluorolube, Other

Approximate media operating temperature
Maximum media temperature
Approximate operating pressure
Maximum pressure
Media material
Material used in media piping or housings

OPTIONAL FEATURES IF REQUIRED

Flushing connection
Connecting line (316 SS Capillary)
Clean-out capability (without disturbing fill)

 

Related Files:
GP-140 Chemical Seal DataSheet
 
 
 
 
 
 

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