Send a part number, a photo, or a whole BOM — we supply it and stand behind it. Worldwide shipping to 80+ countries.

APOLLO Water Gauge: Bronze, 5/8 in Gauge Glass Dia, 12 in Gauge Glass Lg, 350°F Max. Media Temp - Tube-Style Sight Glasses with Check Valves
APOLLOTube-Style Sight Glasses with Check Valves

APOLLO Water Gauge: Bronze, 5/8 in Gauge Glass Dia, 12 in Gauge Glass Lg, 350°F Max. Media Temp

The APOLLO Water Gauge: Bronze is a tube-style sight glass with check valves, designed for visual fluid-level monitoring in industrial systems. This model (MPN 2015100) features a 5/8 in gauge glass diameter, 12 in…

SKU 3G-OTH-91783

Brand
APOLLO
Item
Water Gauge: Bronze, 5/8 in Gauge Glass Dia, 12 in Gauge Glass Lg, 350°F Max. Media Temp
Category
Tube-Style Sight Glasses with Check Valves
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineerMessage via Telegram
No account needed — your quote request goes straight to our engineers. A free account lets you track quotes and re-order faster.
Worldwide Shipping
Air & sea freight
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Delivery
Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Ships to
Singapore

Technical Specifications

APOLLO
Manufacturer Part Number
2015100
Type
NPT
Glass Lg
12 in Gauge
Glass Dia
5/8 in Gauge
Valve Type
Ball Check
Gasket Material
EPDM
Max. Media Temp
350°F
Stem Packing Material
TFE

Technical Documents

No technical documents available for this product.
Request documentation
Not sure this is the right part? Get a recommendation.

Need installation or engineering help?

Installation, commissioning, maintenance plans, system design, and bundled product + service quotes — one team handles the full scope.
Talk to an engineer

Ask a question

APOLLO Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The APOLLO Water Gauge: Bronze is a tube-style sight glass with check valves, designed for visual fluid-level monitoring in industrial systems. This model (MPN 2015100) features a 5/8 in gauge glass diameter, 12 in gauge glass length, and a maximum media temperature of 350°F, with NPT connections. It includes a ball check valve, EPDM gasket material, and TFE stem packing material.

Frequently Asked Questions

What is the APOLLO Water Gauge used for?

The APOLLO Water Gauge is used for visual fluid-level monitoring in industrial systems such as boilers and pressure vessels. Its tube-style sight glass with ball check valves allows operators to safely observe media levels without opening the system.

What are the specifications of the APOLLO Water Gauge 2015100?

The APOLLO Water Gauge 2015100 has a 5/8 in gauge glass diameter, 12 in gauge glass length, and a maximum media temperature of 350°F. It features NPT connections, a ball check valve, EPDM gasket material, and TFE stem packing material.

Where to buy the APOLLO Water Gauge in worldwide?

You can source the APOLLO Water Gauge through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide locations, ensuring you receive the correct APOLLO part for your application.

How to install the APOLLO Water Gauge?

Install the APOLLO Water Gauge by connecting the NPT ports to your system piping, ensuring proper alignment of the glass tube. Tighten fittings to manufacturer torque specs, and verify the ball check valves operate freely before pressurizing the system.

Used in

Common applications for APOLLO
Water supply systems — APOLLO double check valve backflow preventers (Series 4A) for backflow protection in commercial buildings.
HVAC piping — APOLLO bronze ball valves (two-piece, FNPT) for shut-off and isolation in heating and cooling loops.
Irrigation networks — APOLLO double check valve assemblies (bronze, FNPT) to prevent contamination of potable water sources.
Process piping — APOLLO three-piece ball valves (full-port, sweat connections) for maintenance-friendly flow control in industrial lines.
Safety systems — APOLLO spring-return lever ball valves (bronze, FNPT) for fail-safe shut-off in fuel or gas applications.
Plumbing repairs — APOLLO repair kits (complete check kits) for servicing backflow preventers in existing installations.

APOLLO Products

3G Electric supplies APOLLO tube-style sight glasses with check valves. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

You might also need

Burners & Combustion Pumps & Compressors Spare Parts All Products

Compatible alternatives & equivalents

Cross-referenced by specification & description
HAYWARD Check Valve: Ball, Inline Valve Body, CPVC, 4 in Pipe Size, FNPT x FNPT, For Water Media (MPN TC2400TE)
HAYWARD
HAYWARD Check Valve: Ball, Inline Valve Body, CPVC, 4 in Pipe Size, FNPT x FNPT, For Water Media (MPN TC2400TE)
HAYWARD Check Valve: Ball, Inline Valve Body, CPVC, 2 1/2 in Pipe Size, FNPT x FNPT, For Water Media (MPN TC2250TE)
HAYWARD
HAYWARD Check Valve: Ball, Inline Valve Body, CPVC, 2 1/2 in Pipe Size, FNPT x FNPT, For Water Media (MPN TC2250TE)
HAYWARD Check Valve: Ball, Inline Valve Body, CPVC, 3 in Pipe Size, FNPT x FNPT, For Water Media (MPN TC2300T)
HAYWARD
HAYWARD Check Valve: Ball, Inline Valve Body, CPVC, 3 in Pipe Size, FNPT x FNPT, For Water Media (MPN TC2300T)
HAYWARD Check Valve: Ball, Inline Valve Body, CPVC, 3 in Pipe Size, FNPT x FNPT, For Water Media (MPN TC2300TE)
HAYWARD
HAYWARD Check Valve: Ball, Inline Valve Body, CPVC, 3 in Pipe Size, FNPT x FNPT, For Water Media (MPN TC2300TE)
HAYWARD Check Valve: Ball, Inline Valve Body, CPVC, 4 in Pipe Size, FNPT x FNPT, For Water Media (MPN TC2400T)
HAYWARD
HAYWARD Check Valve: Ball, Inline Valve Body, CPVC, 4 in Pipe Size, FNPT x FNPT, For Water Media (MPN TC2400T)
HAYWARD Check Valve: Ball, Inline Valve Body, CPVC, 2 1/2 in Pipe Size, FNPT x FNPT, For Water Media (MPN TC2250T)
HAYWARD
HAYWARD Check Valve: Ball, Inline Valve Body, CPVC, 2 1/2 in Pipe Size, FNPT x FNPT, For Water Media (MPN TC2250T)

More from APOLLO

View all APOLLO parts
APOLLO Water Gauge: Bronze, 5/8 in Gauge Glass Dia, 12 in Gauge Glass Lg, 14 in Center to Center Lg (MPN 2035000)
APOLLO
APOLLO Water Gauge: Bronze, 5/8 in Gauge Glass Dia, 12 in Gauge Glass Lg, 14 in Center to Center Lg (MPN 2035000)
APOLLO Water Gauge: Bronze, 5/8 in Gauge Glass Dia, 12 in Gauge Glass Lg, 14 in Center to Center Lg (MPN 2550200)
APOLLO
APOLLO Water Gauge: Bronze, 5/8 in Gauge Glass Dia, 12 in Gauge Glass Lg, 14 in Center to Center Lg (MPN 2550200)
APOLLO Water Gauge: Stainless Steel, 5/8 in Gauge Glass Dia, 12 in Gauge Glass Lg, PTFE with Hypalon (MPN 2345000)
APOLLO
APOLLO Water Gauge: Stainless Steel, 5/8 in Gauge Glass Dia, 12 in Gauge Glass Lg, PTFE with Hypalon (MPN 2345000)
APOLLO Water Gauge: Bronze, 5/8 in Gauge Glass Dia, 12 in Gauge Glass Lg, 350°F Max. Media Temp, NPT (MPN 2015000)
APOLLO
APOLLO Water Gauge: Bronze, 5/8 in Gauge Glass Dia, 12 in Gauge Glass Lg, 350°F Max. Media Temp, NPT (MPN 2015000)
APOLLO Water Gauge: Bronze, 5/8 in Gauge Glass Dia, 12 in Gauge Glass Lg, 14 in Center to Center Lg (MPN 2435100)
APOLLO
APOLLO Water Gauge: Bronze, 5/8 in Gauge Glass Dia, 12 in Gauge Glass Lg, 14 in Center to Center Lg (MPN 2435100)
APOLLO Water Gauge: Bronze, 5/8 in Gauge Glass Dia, 12 in Gauge Glass Lg, 400°F Max. Media Temp, NPT (MPN 2025000)
APOLLO
APOLLO Water Gauge: Bronze, 5/8 in Gauge Glass Dia, 12 in Gauge Glass Lg, 400°F Max. Media Temp, NPT (MPN 2025000)
APOLLO Water Gauge: Bronze, 5/8 in Gauge Glass Dia, 12 in Gauge Glass Lg, 14 in Center to Center Lg (MPN 2435000)
APOLLO
APOLLO Water Gauge: Bronze, 5/8 in Gauge Glass Dia, 12 in Gauge Glass Lg, 14 in Center to Center Lg (MPN 2435000)
APOLLO Water Gauge: Bronze, 5/8 in Gauge Glass Dia, 12 in Gauge Glass Lg, 14 in Center to Center Lg (MPN 2035100)
APOLLO
APOLLO Water Gauge: Bronze, 5/8 in Gauge Glass Dia, 12 in Gauge Glass Lg, 14 in Center to Center Lg (MPN 2035100)