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Apollo 2365100 Water Gauge 1/2 in MNPT 14 in CC
Stainless-steel expansion-tank water gauge with 1/2 in MNPT connections, 14 in centre-to-centre length, 12 in glass tube, TFE/Hypalon gasket and shut-off plus drain valves rated to 250 psig at 406 °F
- Stainless-steel body resists corrosion up to 250 psig
- TFE with Hypalon gasket seals reliably at 350 °F
- Dual guard rods protect the 12-inch glass tube
- Integrated shutoff and drain valves simplify maintenance
- CRN registration OF 6616.5C confirms code compliance
Apollo 2365100 Water Gauge
The Apollo 2365100 is a stainless-steel water gauge built for hydronic and steam systems. It mounts on a 1/2 inch MNPT connection with a 14 inch center-to-center spacing. A 12 inch glass tube and two guard rods let operators verify liquid level at a glance. CRN registration OF 6616.5C confirms it meets Canadian pressure-vessel requirements.
Thermals and pressure limits
The gauge body withstands 250 psig at 406 degrees Fahrenheit and a maximum temperature of 350 degrees Fahrenheit. TFE with Hypalon gaskets seal the glass tube against leakage under normal cycling. Aluminum hand wheels operate the included shutoff and drain valves without transmitting excess heat to the user. No moving parts generate noise or draw power.
Upgrade path and fit
This gauge replaces worn or non-compliant sight glasses on existing 1/2 inch MNPT tappings with 14 inch centers. The jump is worth it when the old glass is etched, the gaskets weep, or local code demands CRN registration. It does not suit metric threads, larger pipe sizes, or installations that require a different center-to-center dimension.
How it compares
Measured against everything we stock in Bath Accessories & Soap Dispensers, at today’s prices. Recalculated every night.
- Price $467.99
- Pricier than about 91% of the 1,499 comparable items (median $39.99).
Specifications
| Product | |
|---|---|
| Brand name | APOLLO |
| Product type | Other |
Questions about this item
How do I install the Apollo 2365100 water gauge and what step is often missed?
Thread the 1/2 in MNPT connections into the expansion tank ports, then tighten the two guard rods to secure the 12 in glass tube; the step often missed is seating the TFE with Hypalon gaskets before final torque.
What maintenance or replacement will the gauge need later?
Replace the TFE with Hypalon gaskets and the 5/8 in OD glass tube if they show wear or leakage; the aluminum hand wheels and two guard rods rarely need service.
What limit appears first during sustained high-temperature operation?
The 350 °F maximum temperature rating is reached before the 250 psig pressure limit at 406 °F, so sustained heat is the governing constraint.
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