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 Safety Relief Valve: MNPT x FNPT, 3 in x 3 in, 15 psi Max. Op Pressure - ASME Section IV Steam Pressure Relief Valves
APOLLOASME Section IV Steam Pressure Relief Valves

APOLLO Safety Relief Valve: MNPT x FNPT, 3 in x 3 in, 15 psi Max. Op Pressure

SKU 3G-OTH-453680

Brand
APOLLO
Item
Safety Relief Valve: MNPT x FNPT, 3 in x 3 in, 15 psi Max. Op Pressure
Category
ASME Section IV Steam Pressure Relief Valves
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
1420708
Type
3 in x 3 in, Cast Bronze
Max. Op Pressure
15 psi
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

Frequently Asked Questions

What is the APOLLO 1420708 safety relief valve used for?

The APOLLO 1420708 is an ASME Section IV steam pressure relief valve used on low-pressure steam boilers and heating systems. It protects equipment from overpressure by automatically relieving excess steam, ensuring safe operation in commercial and industrial steam applications.

What are the specifications of the APOLLO 1420708 safety relief valve?

The APOLLO 1420708 is a 3 in x 3 in MNPT x FNPT safety relief valve with a maximum operating pressure of 15 psi. It is constructed from cast bronze and is ASME Section IV certified for steam service. The manufacturer part number is 1420708.

Where to buy the APOLLO 1420708 safety relief valve worldwide?

3G Electric supplies the APOLLO 1420708 safety relief valve to customers worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your location. Contact us for a quote and lead time on this cast bronze valve.

How to install the APOLLO 1420708 safety relief valve?

Install the APOLLO 1420708 valve in the vertical position on the steam boiler outlet. Use pipe thread sealant on the MNPT connection and ensure the discharge piping is unobstructed and directed to a safe location. Always follow ASME Section IV guidelines and local codes for proper installation.

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 asme section iv steam pressure relief 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 →

Similar products

Matched by specification & description
APOLLO Safety Relief Valve: MNPT x FNPT, 2 in x 2 in, 15 psi Max. Op Pressure, Cast Bronze (MPN 1420508). Key specifications — Brand: APOLLO.
APOLLO
APOLLO Safety Relief Valve: MNPT x FNPT, 2 in x 2 in, 15 psi Max. Op Pressure, Cast Bronze (MPN 1420508). Key specifications — Brand: APOLLO.
APOLLO Safety Relief Valve: MNPT x FNPT, 3/4 in x 3/4 in, 15 psi Max. Op Pressure, Cast Bronze (MPN 13101B05). Key specifications — Brand: APOLLO.
APOLLO
APOLLO Safety Relief Valve: MNPT x FNPT, 3/4 in x 3/4 in, 15 psi Max. Op Pressure, Cast Bronze (MPN 13101B05). Key specifications — Brand: APOLLO.
APOLLO Safety Relief Valve: MNPT x FNPT, 3/4 in x 3/4 in, 15 psi Max. Op Pressure, Cast Bronze (MPN 13211B05). Key specifications — Brand: APOLLO.
APOLLO
APOLLO Safety Relief Valve: MNPT x FNPT, 3/4 in x 3/4 in, 15 psi Max. Op Pressure, Cast Bronze (MPN 13211B05). Key specifications — Brand: APOLLO.
APOLLO Safety Relief Valve: FNPT x FNPT, 2 in x 2 in, Bronze, 174 psi Max. Op Pressure (MPN 1060810). Key specifications — Brand: APOLLO.
APOLLO
APOLLO Safety Relief Valve: FNPT x FNPT, 2 in x 2 in, Bronze, 174 psi Max. Op Pressure (MPN 1060810). Key specifications — Brand: APOLLO.
APOLLO Safety Relief Valve: MNPT x FNPT, 3/4 in x 3/4 in, 15 psi Max. Op Pressure, Cast Bronze (MPN 13211B10). Key specifications — Brand: APOLLO.
APOLLO
APOLLO Safety Relief Valve: MNPT x FNPT, 3/4 in x 3/4 in, 15 psi Max. Op Pressure, Cast Bronze (MPN 13211B10). Key specifications — Brand: APOLLO.

More from APOLLO

View all APOLLO parts →
APOLLO Safety Relief Valve: MNPT x FNPT, 3/4 in x 3/4 in, 15 psi Max. Op Pressure, Cast Bronze (MPN 13211B15). Key specifications — Brand: APOLLO.
APOLLO
APOLLO Safety Relief Valve: MNPT x FNPT, 3/4 in x 3/4 in, 15 psi Max. Op Pressure, Cast Bronze (MPN 13211B15). Key specifications — Brand: APOLLO.
APOLLO Safety Relief Valve: MNPT x FNPT, 1 in x 1 in, 15 psi Max. Op Pressure, Cast Bronze (MPN 13202B10). Key specifications — Brand: APOLLO.
APOLLO
APOLLO Safety Relief Valve: MNPT x FNPT, 1 in x 1 in, 15 psi Max. Op Pressure, Cast Bronze (MPN 13202B10). Key specifications — Brand: APOLLO.
APOLLO Safety Relief Valve: MNPT x FNPT, 1 in x 1 in, 15 psi Max. Op Pressure, Cast Bronze (MPN 13202B05). Key specifications — Brand: APOLLO.
APOLLO
APOLLO Safety Relief Valve: MNPT x FNPT, 1 in x 1 in, 15 psi Max. Op Pressure, Cast Bronze (MPN 13202B05). Key specifications — Brand: APOLLO.
APOLLO Safety Relief Valve: MNPT x FNPT, 1 1/2 in x 2 in, 15 psi Max. Op Pressure, Cast Bronze (MPN 13214B15). Key specifications — Brand: APOLLO.
APOLLO
APOLLO Safety Relief Valve: MNPT x FNPT, 1 1/2 in x 2 in, 15 psi Max. Op Pressure, Cast Bronze (MPN 13214B15). Key specifications — Brand: APOLLO.
APOLLO Safety Relief Valve: MNPT x FNPT, 2 1/2 in x 2 1/2 in, 15 psi Max. Op Pressure, Cast Bronze (MPN 1420608). Key specifications — Brand: APOLLO.
APOLLO
APOLLO Safety Relief Valve: MNPT x FNPT, 2 1/2 in x 2 1/2 in, 15 psi Max. Op Pressure, Cast Bronze (MPN 1420608). Key specifications — Brand: APOLLO.
APOLLO Safety Relief Valve: MNPT x FNPT, 1 1/4 in x 1 1/2 in, 15 psi Max. Op Pressure, Cast Bronze (MPN 13213B15). Key specifications — Brand: APOLLO.
APOLLO
APOLLO Safety Relief Valve: MNPT x FNPT, 1 1/4 in x 1 1/2 in, 15 psi Max. Op Pressure, Cast Bronze (MPN 13213B15). Key specifications — Brand: APOLLO.
APOLLO Safety Relief Valve: MNPT x FNPT, 3/4 in x 3/4 in, 15 psi Max. Op Pressure, Cast Bronze (MPN 13101B10). Key specifications — Brand: APOLLO.
APOLLO
APOLLO Safety Relief Valve: MNPT x FNPT, 3/4 in x 3/4 in, 15 psi Max. Op Pressure, Cast Bronze (MPN 13101B10). Key specifications — Brand: APOLLO.
APOLLO Safety Relief Valve: MNPT x FNPT, 1 in x 1 in, 15 psi Max. Op Pressure, Cast Bronze (MPN 13202B15). Key specifications — Brand: APOLLO.
APOLLO
APOLLO Safety Relief Valve: MNPT x FNPT, 1 in x 1 in, 15 psi Max. Op Pressure, Cast Bronze (MPN 13202B15). Key specifications — Brand: APOLLO.