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King Instrument
King Instrument 7200 Series Rotameter
Quote on request
No online payment · add lines to RFQ BOM
Acrylic-tube NPT rotameter; water/air scales; ±3–6% FS. RFQ + selection help.
Download datasheet PDF
RFQ cart holds BOM lines only. Submit for engineering quote.
Key parameters
Accuracy
±3–6% full scale class
Type
Acrylic-tube vertical NPT rotameter (7200 Series)
Water Range
About 1–200 GPM class (model dependent)
Air Range
About 4–245 SCFM class (model dependent)
Connections
3/8 in to 2 in NPT class
Scale
127 mm direct-reading scale
Fits vertical in-line variable-area flow indication where you need a King 7200 acrylic-tube NPT rotameter with direct-reading scales for water or air.
Key advantages
- Type — Acrylic-tube vertical NPT rotameter (7200 Series)
- Ranges — Water about 1–200 GPM; air about 4–245 SCFM (model dependent)
- Connections — 3/8 in to 2 in NPT class
- Scale — 127 mm direct-reading scale
- Performance — ±3–6% FS class; 1–2% repeatability; typical 10:1 turndown
Typical applications
- Local water or air flow indication on utility lines.
- OEM skids needing inexpensive acrylic rotameters.
- Vertical installs within temperature/pressure ratings.
Selection guide
- Fluid — Water vs air scale
- Connection / range — NPT size and GPM/SCFM
- Ratings — Water ~130 °F / 150 psig; air ~100 °F / 125 psig class
- Orientation — Vertical mount
Common mistakes
- Using acrylic tube beyond pressure/temperature ratings.
- Mounting horizontally — 7200 is vertical.
- Ordering air scale for liquid service.
When to RFQ / what to tell us
- Fluid, flow range, NPT size.
- Temperature/pressure.
- Quantity and ship-to.
Request a Quote · Get selection help
Specs
| Spec | Value |
|---|---|
| SKU | 18082 |
| Brand | King Instrument |
| Model | 7200 Series Rotameter |
| Product type | Rotameter |
| Type | Acrylic-tube vertical NPT rotameter (7200 Series) |
| Water range | About 1–200 GPM class (model dependent) |
| Air range | About 4–245 SCFM class (model dependent) |
| Connections | 3/8 in to 2 in NPT class |
| Scale | 127 mm direct-reading scale |
| Accuracy | ±3–6% full scale class |
| Repeatability | 1–2% class; typical 10:1 turndown |
| Ratings (water) | Up to ~130 °F / 150 psig class |
| Ratings (air) | Up to ~100 °F / 125 psig class |
Documents
FAQ
Q: What accuracy class? A: About ±3–6% full scale depending on model.
Q: What connections? A: About 3/8 in to 2 in NPT class.
Q: What should I send for a quote? A: Fluid/range/NPT, T/P, quantity, ship-to.
Links
| Parameter | Value |
|---|---|
| Accuracy | ±3–6% full scale class |
| Type | Acrylic-tube vertical NPT rotameter (7200 Series) |
| Water Range | About 1–200 GPM class (model dependent) |
| Air Range | About 4–245 SCFM class (model dependent) |
| Connections | 3/8 in to 2 in NPT class |
| Scale | 127 mm direct-reading scale |
| Repeatability | 1–2% class; typical 10:1 turndown |
| Ratings Water | Up to ~130 °F / 150 psig class |
| Ratings Air | Up to ~100 °F / 125 psig class |
| Document | King Catalog 7200 Series |