Gauges on Welded Diaphragm Seals
OFFERING THE PREMIER GAUGE / MINI-SEAL COMBO
ADVANTAGES
ONE MOVING PART
Unmatched vibration, pulsation and shock performance.
Helical Bourdon Tube = Gearless, Direct Drive = DURABILITY
No linkages, springs, gears, or liquid fill to wear, break or leak. Unique, internal pointer dampening reduces pointer flutter without the negative consequences of liquid fill. Sanitary environment friendly.
ELIMINATE LEAK PATHS
Sleek, all-welded design customized to perform specifically with Perma-Cal® gauges and eliminate potential leak paths.
PRICE ADVANTAGE
Superior performance at a superior price
Perma-Cal® Gauge/ Mini-Seal vs. Traditional C-Tube Gauge/ Seal.
MAINTAINS ACCURACY
Low-volume design requires a minimum of 85% less fill fluid vs. C-Tube competitors. Thus, accuracy is 50% less affected by temperatures above 68°F (20°C).
85% less volume = 50% more consistent accuracy
Inconel’s low coefficient of thermal expansion in combination with a low internal volume means that impact of temperature on accuracy is minimal vs. C-Tube competitors. High-Temp solutions available which bring operating temperatures up to 400°F Ambient / 650°F Media.
LIFETIME LIMITED WARRANTY
Lifetime warranty that the Bourdon tube will not malfunction due to wear.
1 year from delivery or 18 months from date of manufacture against defects in materials and workmanship.
Diaphragm Seal Gauge Specs
TYPICAL APPLICATIONS
Ideal for use on processes which are corrosive, viscous, unrefined or unfiltered.
Prevents media from clogging the Bourdon tube.
Chemical Plants
Wastewater Treatment Facilities
Sanitary Environments (food and beverage)
Crude Oil Pipelines
Ethanol Production Facilities
Refineries, and more...
ACCURACY
±0.5% of F.S. (Grade 2A)
±0.5% F.S. at M.S. / ±1.0% F.S.
Accuracy Ref. @ 68°F, ±2°F
Diaphragm seals installed on gauges below 100 psi may experience loss of accuracy at low pressures.
RANGE AVAILABILITY
Vacuum - 1,000 psi (or equivalent)
Units: psi, bar, kPa, kg/cm² (others available)
Types: Single or Dual Scale, Vacuum and Compound
Customization available (range, units, logo, etc.)
See dial availability chart for list of standard ranges
CASE CONFIGURATIONS
Material:
ABS (acrylonitrile butadiene styrene)
Aluminum
Stainless Steel
GFN (glass-filled nylon): High-Temp Yellow Turret
Sizes, Types and Colors:
2.5", 3.5", 4.5" Dial
No Flange, Rear Flange, Turret
Black, Blue, Green, Red, White, Yellow (others available)
Metal Case Finish: Powder Coated or Unpainted
Solid Front Case Design
OTHER SPECIFICATIONS
Window Construction:
Acrylic
Tempered Glass (increases heat tolerance)
Dial Construction:
Stainless Steel Material, Powder Coated Finish
White Background, Black Markings, Black Pointer
See Ray Series for high visibility dial
Proof Pressure (over-pressure w/o calibration shift):
150% of F.S. pressure
Internal pointer dampening (reduces pointer flutter)
DIAPHRAGM SEAL SPECS
Material (wetted parts):
Stainless Steel 316L
Hastelloy C-276
Seals containing 316L wetted parts comply with NACE MR0175 & MR0103 process temperatures at or below 140°F.
Connection Type:
1/4 or 1/2 FNPT
1/4 or 1/2 MNPT
Bottom mount only
Burst Pressure: 10,000 psi
Max Working Pressure: 2,000 psi
Other options available. Contact the factory.
OPERATING TEMPERATURE
Media Temperature: -40°F to 650°F
Ambient Temperature:
ABS: -40°F to 190°F
GFN and Metal: -40°F to 400°F
Case, Diaphragm Seal, and Fill Fluid selection determines operating temperature range.
FILL FLUIDS
Standard Fill:
Silicone DC200 (or equivalent)
Operating Temp: -40°F to 400°F
Inert Fill:
Halocarbon 6.3 (similar to Fluorolube but suitable for vacuum service)
Operating Temp: -40°F to 400°F
High-Temp Fill:
Silicone DC704 (or equivalent)
Operating Temp: 0°F to 650°F
Max 200°F in vacuum service for all fills. Click here for more information on vacuum service.
Other options available. Contact the factory.