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

3G Electric
⌕
RFQ CartGet a QuoteSign inSign up
APOLLO Water Gauge: Bronze, 5/8 in Gauge Glass Dia, 12 in Gauge Glass Lg, 400°F Max. Media Temp - Tube-Style Sight Glasses
APOLLOTube-Style Sight Glasses

APOLLO Water Gauge: Bronze, 5/8 in Gauge Glass Dia, 12 in Gauge Glass Lg, 400°F Max. Media Temp

The APOLLO Water Gauge: Bronze is a tube-style sight glass with a 5/8 in gauge glass diameter and 12 in gauge glass length, rated for a maximum media temperature of 400°F and featuring NPT connections. It includes a…

SKU 3G-OTH-91719

Brand
APOLLO
Item
Water Gauge: Bronze, 5/8 in Gauge Glass Dia, 12 in Gauge Glass Lg, 400°F Max. Media Temp
Category
Tube-Style Sight Glasses
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineer
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

Technical Specifications

APOLLO
Manufacturer Part Number
2020400
Type
NPT
Glass Lg
12 in Gauge
Glass Dia
5/8 in Gauge
Valve Type
Needle Drain
Gasket Material
EPDM
Max. Media Temp
400°F
Stem Packing Material
TFE
View Full Spec Sheet

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 a 5/8 in gauge glass diameter and 12 in gauge glass length, rated for a maximum media temperature of 400°F and featuring NPT connections. It includes a needle drain valve, TFE stem packing material, and EPDM gasket material, as specified by manufacturer part number 2020400.

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. 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 →

Similar products

Matched by specification & description
APPROVED VENDOR Sight Glass: Flared Swivel, Copper/Steel, 3 3/8 in Lg (MPN 6AWT9). Key specifications — Brand: APPROVED VENDOR; Material: Steel.
APPROVED VENDOR
APPROVED VENDOR Sight Glass: Flared Swivel, Copper/Steel, 3 3/8 in Lg (MPN 6AWT9). Key specifications — Brand: APPROVED VENDOR; Material: Steel.
APPROVED VENDOR Sight Glass: Sweat, Copper/Steel, 5 3/8 in Lg (MPN 6AWU5). Key specifications — Brand: APPROVED VENDOR; Material: Copper.
APPROVED VENDOR
APPROVED VENDOR Sight Glass: Sweat, Copper/Steel, 5 3/8 in Lg (MPN 6AWU5). Key specifications — Brand: APPROVED VENDOR; Material: Copper.
APPROVED VENDOR Sight Glass: Sweat, Copper/Steel, 4 7/16 in Lg (MPN 6AWU4). Key specifications — Brand: APPROVED VENDOR; Material: Copper.
APPROVED VENDOR
APPROVED VENDOR Sight Glass: Sweat, Copper/Steel, 4 7/16 in Lg (MPN 6AWU4). Key specifications — Brand: APPROVED VENDOR; Material: Copper.
APPROVED VENDOR Sight Glass: Sweat, Copper/Steel, 5 5/8 in Lg (MPN 6AWU6). Key specifications — Brand: APPROVED VENDOR; Material: Steel.
APPROVED VENDOR
APPROVED VENDOR Sight Glass: Sweat, Copper/Steel, 5 5/8 in Lg (MPN 6AWU6). Key specifications — Brand: APPROVED VENDOR; Material: Steel.
APPROVED VENDOR Test Tube: 8 mL, Test Tube, 12 mm Body Dia, 100 mm Overall Ht, Colorless, Round (MPN TT9800-C). Key specifications — Graduated: No; Includes Closure: No; Body Color: Colorless; Brand: APPROVED VENDOR; Bottom Shape: Round.
APPROVED VENDOR
APPROVED VENDOR Test Tube: 8 mL, Test Tube, 12 mm Body Dia, 100 mm Overall Ht, Colorless, Round (MPN TT9800-C). Key specifications — Graduated: No; Includes Closure: No; Body Color: Colorless; Brand: APPROVED VENDOR; Bottom Shape: Round.
APPROVED VENDOR Pressure Gauge Siphon: Brass, 1/4 in NPT, 5 11/16 in Lg, 180° Coil, 250 psi at 400°F (MPN 5TUL0). Key specifications — Brand: APPROVED VENDOR; Material: Brass; Maximum Internal Pressure: 250 psi at 400°F.
APPROVED VENDOR
APPROVED VENDOR Pressure Gauge Siphon: Brass, 1/4 in NPT, 5 11/16 in Lg, 180° Coil, 250 psi at 400°F (MPN 5TUL0). Key specifications — Brand: APPROVED VENDOR; Material: Brass; Maximum Internal Pressure: 250 psi at 400°F.

More from APOLLO

View all APOLLO parts →
APOLLO Water Gauge: Bronze, 5/8 in Gauge Glass Dia, 12 in Gauge Glass Lg, 350°F Max. Media Temp, NPT (MPN 2010500). Key specifications — Valve Type: Needle Drain; Brand: APOLLO; Stem Packing Material: TFE; Gasket Material: EPDM.
APOLLO
APOLLO Water Gauge: Bronze, 5/8 in Gauge Glass Dia, 12 in Gauge Glass Lg, 350°F Max. Media Temp, NPT (MPN 2010500). Key specifications — Valve Type: Needle Drain; Brand: APOLLO; Stem Packing Material: TFE; Gasket Material: EPDM.
APOLLO Water Gauge: Bronze, 5/8 in Gauge Glass Dia, 10 in Gauge Glass Lg, 350°F Max. Media Temp, NPT (MPN 2010100). Key specifications — Valve Type: Needle Drain; Brand: APOLLO; Stem Packing Material: TFE; Gasket Material: EPDM.
APOLLO
APOLLO Water Gauge: Bronze, 5/8 in Gauge Glass Dia, 10 in Gauge Glass Lg, 350°F Max. Media Temp, NPT (MPN 2010100). Key specifications — Valve Type: Needle Drain; Brand: APOLLO; Stem Packing Material: TFE; Gasket Material: EPDM.
APOLLO Water Gauge: Stainless Steel, 5/8 in Gauge Glass Dia, 12 in Gauge Glass Lg, PTFE with Hypalon (MPN 2340100). Key specifications — Valve Type: Ball Drain; Brand: APOLLO; Stem Packing Material: PTFE with ARAMID; Gasket Material: PTFE with Hypalon.
APOLLO
APOLLO Water Gauge: Stainless Steel, 5/8 in Gauge Glass Dia, 12 in Gauge Glass Lg, PTFE with Hypalon (MPN 2340100). Key specifications — Valve Type: Ball Drain; Brand: APOLLO; Stem Packing Material: PTFE with ARAMID; Gasket Material: PTFE with Hypalon.
APOLLO Water Gauge: Bronze, 5/8 in Gauge Glass Dia, 12 in Gauge Glass Lg, 350°F Max. Media Temp, NPT (MPN 2010400). Key specifications — Valve Type: Needle Drain; Brand: APOLLO; Stem Packing Material: TFE; Gasket Material: EPDM.
APOLLO
APOLLO Water Gauge: Bronze, 5/8 in Gauge Glass Dia, 12 in Gauge Glass Lg, 350°F Max. Media Temp, NPT (MPN 2010400). Key specifications — Valve Type: Needle Drain; Brand: APOLLO; Stem Packing Material: TFE; Gasket Material: EPDM.
APOLLO Water Gauge: Bronze, 3/4 in Gauge Glass Dia, 16 in Gauge Glass Lg, 400°F Max. Media Temp, NPT (MPN 2020700). Key specifications — Valve Type: Needle Drain; Brand: APOLLO; Stem Packing Material: TFE; Gasket Material: EPDM.
APOLLO
APOLLO Water Gauge: Bronze, 3/4 in Gauge Glass Dia, 16 in Gauge Glass Lg, 400°F Max. Media Temp, NPT (MPN 2020700). Key specifications — Valve Type: Needle Drain; Brand: APOLLO; Stem Packing Material: TFE; Gasket Material: EPDM.
APOLLO Water Gauge: Bronze, 3/4 in Gauge Glass Dia, 16 in Gauge Glass Lg, 400°F Max. Media Temp, NPT (MPN 2020800). Key specifications — Valve Type: Needle Drain; Brand: APOLLO; Stem Packing Material: TFE; Gasket Material: EPDM.
APOLLO
APOLLO Water Gauge: Bronze, 3/4 in Gauge Glass Dia, 16 in Gauge Glass Lg, 400°F Max. Media Temp, NPT (MPN 2020800). Key specifications — Valve Type: Needle Drain; Brand: APOLLO; Stem Packing Material: TFE; Gasket Material: EPDM.
APOLLO Water Gauge: Bronze, 5/8 in Gauge Glass Dia, 12 in Gauge Glass Lg, 400°F Max. Media Temp, NPT (MPN 2020500). Key specifications — Valve Type: Needle Drain; Brand: APOLLO; Stem Packing Material: TFE; Gasket Material: EPDM.
APOLLO
APOLLO Water Gauge: Bronze, 5/8 in Gauge Glass Dia, 12 in Gauge Glass Lg, 400°F Max. Media Temp, NPT (MPN 2020500). Key specifications — Valve Type: Needle Drain; Brand: APOLLO; Stem Packing Material: TFE; Gasket Material: EPDM.