We ship worldwide — Singapore, Australia, Malaysia, Indonesia, Philippines, India, Middle East & more

3G Electric
RFQ CartGet a QuoteSign inSign up
APOLLO Safety Relief Valve: MNPT x FNPT, 1 1/2 in x 2 1/2 in, 1,214 psi Max. Op Pressure - ASME Section VIII Steam Pressure Relief Valves
APOLLOASME Section VIII Steam Pressure Relief Valves

APOLLO Safety Relief Valve: MNPT x FNPT, 1 1/2 in x 2 1/2 in, 1,214 psi Max. Op Pressure

The APOLLO POP Safety Relief Valve is an ASME Section VIII steam pressure relief valve in a 1 1/2 in x 2 1/2 in MNPT x FNPT configuration, constructed of bronze with a maximum operating pressure of 1,214 psi (MPN…

SKU 3G-OTH-433894

Brand
APOLLO
Item
Safety Relief Valve: MNPT x FNPT, 1 1/2 in x 2 1/2 in, 1,214 psi Max. Op Pressure
Category
ASME Section VIII Steam Pressure Relief 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

Delivery
Worldwide DHL shipping from Singapore; 7–14 business days door-to-door for most destinations.
Payment
Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.

Technical Specifications

APOLLO
Manufacturer Part Number
511HGBKMAA0175
Type
1 1/2 in x 2 1/2 in, Bronze
Max. Op Pressure
1,214 psi

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 POP Safety Relief Valve is an ASME Section VIII steam pressure relief valve in a 1 1/2 in x 2 1/2 in MNPT x FNPT configuration, constructed of bronze with a maximum operating pressure of 1,214 psi (MPN 511HGBKMAA0175).

Frequently Asked Questions

What is the APOLLO POP Safety Relief Valve used for?

The APOLLO POP Safety Relief Valve is used for overpressure protection in steam, air, and liquid systems. It is ASME Section VIII certified for steam applications, making it suitable for boilers, pressure vessels, and industrial piping systems requiring reliable pressure relief.

What are the specifications of the APOLLO POP Safety Relief Valve?

The APOLLO POP Safety Relief Valve (MPN 511HGBKMAA0175) has a 1 1/2 in MNPT x 2 1/2 in FNPT connection, a maximum operating pressure of 1,214 psi, and a bronze body. It is an ASME Section VIII steam pressure relief valve designed for high-pressure industrial applications.

Where to buy the APOLLO POP Safety Relief Valve worldwide?

3G Electric supplies the APOLLO POP Safety Relief Valve worldwide. As a global industrial equipment distributor since 1990, we handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time on this APOLLO valve.

How to install the APOLLO POP Safety Relief Valve?

Install the APOLLO POP Safety Relief Valve vertically in the system with the inlet connected to the protected vessel. Ensure the discharge piping is unobstructed and directed to a safe area. Follow ASME Section VIII guidelines and local codes for proper installation and testing.

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 viii 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 →

Compatible alternatives & equivalents

Cross-referenced by specification & description
APOLLO POP Safety Relief Valve: MNPT x FNPT, 1 1/4 in x 2 in, 1,214 psi Max. Op Pressure, Bronze (MPN 511GFBKMAA0175)
APOLLO
APOLLO POP Safety Relief Valve: MNPT x FNPT, 1 1/4 in x 2 in, 1,214 psi Max. Op Pressure, Bronze (MPN 511GFBKMAA0175)
APOLLO POP Safety Relief Valve: MNPT x FNPT, 1 1/4 in x 1 1/2 in, 1,214 psi Max. Op Pressure, Bronze (MPN 511FFBKMAA0175)
APOLLO
APOLLO POP Safety Relief Valve: MNPT x FNPT, 1 1/4 in x 1 1/2 in, 1,214 psi Max. Op Pressure, Bronze (MPN 511FFBKMAA0175)
APOLLO POP Safety Relief Valve: MNPT x FNPT, 3/4 in x 1 in, 1,214 psi Max. Op Pressure, Bronze (MPN 511DDBKMAA0175)
APOLLO
APOLLO POP Safety Relief Valve: MNPT x FNPT, 3/4 in x 1 in, 1,214 psi Max. Op Pressure, Bronze (MPN 511DDBKMAA0175)
APOLLO POP Safety Relief Valve: MNPT x FNPT, 3/4 in x 3/4 in, 1,214 psi Max. Op Pressure, Bronze (MPN 511DDDKMAA0175)
APOLLO
APOLLO POP Safety Relief Valve: MNPT x FNPT, 3/4 in x 3/4 in, 1,214 psi Max. Op Pressure, Bronze (MPN 511DDDKMAA0175)
APOLLO POP Safety Relief Valve: MNPT x FNPT, 1 in x 1 1/2 in, 1,214 psi Max. Op Pressure, Bronze (MPN 511FEBKMAA0175)
APOLLO
APOLLO POP Safety Relief Valve: MNPT x FNPT, 1 in x 1 1/2 in, 1,214 psi Max. Op Pressure, Bronze (MPN 511FEBKMAA0175)
APOLLO POP Safety Relief Valve: MNPT x FNPT, 1 in x 1 1/4 in, 1,214 psi Max. Op Pressure, Bronze (MPN 511EEBKMAA0175)
APOLLO
APOLLO POP Safety Relief Valve: MNPT x FNPT, 1 in x 1 1/4 in, 1,214 psi Max. Op Pressure, Bronze (MPN 511EEBKMAA0175)

More from APOLLO

View all APOLLO parts →
APOLLO POP Safety Relief Valve: MNPT x FNPT, 3/4 in x 1 1/4 in, 1,214 psi Max. Op Pressure, Bronze (MPN 523EDBKMAA0500)
APOLLO
APOLLO POP Safety Relief Valve: MNPT x FNPT, 3/4 in x 1 1/4 in, 1,214 psi Max. Op Pressure, Bronze (MPN 523EDBKMAA0500)
APOLLO POP Safety Relief Valve: MNPT x FNPT, 3/4 in x 3/4 in, 1,214 psi Max. Op Pressure, Bronze (MPN 523DDDKMAA0350)
APOLLO
APOLLO POP Safety Relief Valve: MNPT x FNPT, 3/4 in x 3/4 in, 1,214 psi Max. Op Pressure, Bronze (MPN 523DDDKMAA0350)
APOLLO POP Safety Relief Valve: MNPT x FNPT, 1 in x 1 1/2 in, 1,214 psi Max. Op Pressure (MPN 541FEBKMAA0150)
APOLLO
APOLLO POP Safety Relief Valve: MNPT x FNPT, 1 in x 1 1/2 in, 1,214 psi Max. Op Pressure (MPN 541FEBKMAA0150)
APOLLO POP Safety Relief Valve: MNPT x FNPT, 3/4 in x 1 in, 1,214 psi Max. Op Pressure, Bronze (MPN 511DDBKMAA0200)
APOLLO
APOLLO POP Safety Relief Valve: MNPT x FNPT, 3/4 in x 1 in, 1,214 psi Max. Op Pressure, Bronze (MPN 511DDBKMAA0200)
APOLLO POP Safety Relief Valve: MNPT x FNPT, 3/4 in x 1 1/4 in, 1,214 psi Max. Op Pressure (MPN 541EDBKMAA0200)
APOLLO
APOLLO POP Safety Relief Valve: MNPT x FNPT, 3/4 in x 1 1/4 in, 1,214 psi Max. Op Pressure (MPN 541EDBKMAA0200)
APOLLO POP Safety Relief Valve: MNPT x FNPT, 1 in x 1 1/2 in, 1,214 psi Max. Op Pressure (MPN 543FEBKMAA0150)
APOLLO
APOLLO POP Safety Relief Valve: MNPT x FNPT, 1 in x 1 1/2 in, 1,214 psi Max. Op Pressure (MPN 543FEBKMAA0150)
APOLLO POP Safety Relief Valve: MNPT x FNPT, 1 in x 1 1/4 in, 1,214 psi Max. Op Pressure, Bronze (MPN 511EEBKMAA0075)
APOLLO
APOLLO POP Safety Relief Valve: MNPT x FNPT, 1 in x 1 1/4 in, 1,214 psi Max. Op Pressure, Bronze (MPN 511EEBKMAA0075)
APOLLO POP Safety Relief Valve: MNPT x FNPT, 1 in x 1 1/2 in, 1,214 psi Max. Op Pressure, Bronze (MPN 523FEBKMAA0350)
APOLLO
APOLLO POP Safety Relief Valve: MNPT x FNPT, 1 in x 1 1/2 in, 1,214 psi Max. Op Pressure, Bronze (MPN 523FEBKMAA0350)