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Tube-N-Tube Level Gauge | Level Gauges | Liquid Level Gauges
High-Purity or Highly Corrosive Products
Cryogenic or Hot Process Conditions to 300 psi
- Only Wetted Part is One-Piece, Clear PFA Teflon®
- Approved by the Factory Mutual System
- Available in Any Length up to 20 Feet
- Patented One-Piece SuperSeal Inserts are Self-Sealing
- Unobstructed Visibility
- Maintenance Free
- Flared PFA TeflonŽ Forms Flange Gasket
- Designed for Cryogenic or Hot Process Applications
- Inner Sight-Tube is Protected and Insulated
- Transparent Insulation Reduces Heat Loss, Eliminates Many Heat Tracing Requirements
- Excellent for Corrosive, Viscous or Sanitary Service
- Rated up to 285 psig (ANSI 150)
- Internal Heat Tracing Available; Consult Factory
- Polycarbonate Sleeves Rated up to 150° F
- Borosilicate Sleeves Rated up to 350° F
- Optional 304/316 SS, CPVC, and Fiberglass Shields
- ANSI Class 300 lb Flanges are Available
- Custom Designs Available; Consult Factory
- Gage Connectors, Illuminators and Other Accesssories
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- PFA TeflonŽ Inner Sight-Tube, Flared
- PTFE TeflonŽ SuperSeal Inserts
- Polycarbonate or Borosilicate Sight-Tube Sleeve
- Polycarbonate or Borosilicate Outer Sight-Tube
- Epoxy-Coated Carbon Steel Shield and Flanges
- ANSI Class 150 lb Flanges
- 304 SS, 316 SS, CPVC, and Fiberglass Armored Shields
- Embossed Sight-Tube Calibrations
- Vertical Red-Striping (back side of sight tube) for Easier Observation of the Interface Between Two Liquids of Different Densities
- Orange PTFE or Polypropylene Floats for Enhanced Level Visibility
- Internal Heat Tracing
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Sight-Tube Material |
Sight-Tube Size, in. |
Outer-Tube Material |
Outer-Tube Size, in. |
Sleeve-Tube Material |
Sleeve-Tube Size, in. |
Gage rating, psig ANSI 300 |
Flange size, in. |
PF |
1.00 |
LX |
2.25 |
LX |
1.25 |
150 |
1.50 |
| PF |
1.00 |
OG |
1.50 |
LX |
1.25 |
150 |
1.50 |
| PF |
1.00 |
LX |
2.25 |
PI |
1.00 |
150 |
1.50 |
| PF |
1.00 |
LX |
2.75 |
LX |
1.25 |
150 |
2.00 |
| PF |
1.00 |
OG |
2.5 |
LX |
1.25 |
150 |
2.00 |
| PF |
1.00 |
LX |
2.75 |
PI |
1.00 |
150 |
2.00 |
| PF |
1.00 |
OG |
2.50 |
PI |
1.00 |
150 |
2.00 |
| PF |
1.25 |
LX |
2.75 |
HW |
1.50 |
285 |
2.00 |
| PF |
1.25 |
OG |
2.25 |
HW |
1.50 |
285 |
2.00 |
| PF |
1.50 |
LX |
2.75 |
LX |
1.75 |
135 |
2.00 |
| PF |
1.50 |
OG |
2.50 |
LX |
1.75 |
135 |
2.00 |
| PF |
1.50 |
LX |
2.75 |
PI |
1.50 |
135 |
2.00 |
| PF |
1.50 |
OG |
2.50 |
PI |
1.50 |
135 |
3.00 |
| PF |
1.62 |
LX |
3.00 |
HW |
2.00 |
285 |
3.00 |
| PF |
1.62 |
OG |
3.00 |
HW |
2.00 |
285 |
3.00 |
| PF |
2.00 |
LX |
4.00 |
LX |
2.25 |
115 |
3.00 |
| PF |
2.00 |
OG |
3.00 |
LX |
2.25 |
115 |
3.00 |
| PF |
2.00 |
LX |
4.00 |
PI |
2.00 |
115 |
3.00 |
| PF |
2.00 |
OG |
3.00 |
PI |
2.00 |
115 |
3.00 |
PF = PFA®Teflon, PI = Standard Borosilicate, HW = Heavywall Borosilicate, OG = Outer Borosilicate, LX = Outer Polycarbonate
Not recommended for vacuum service.
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Tube-N-Tube Level Gauge | Level Gauges | Liquid Level Gauges
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