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, 3/4 in x 3/4 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, 3/4 in x 3/4 in, 1,214 psi Max. Op Pressure

The APOLLO POP Safety Relief Valve is an ASME Section VIII steam pressure relief valve in a 3/4 in x 3/4 in MNPT x FNPT configuration, constructed from bronze. It has a maximum operating pressure of 1,214 psi (MPN…

SKU 3G-OTH-433724

Brand
APOLLO
Item
Safety Relief Valve: MNPT x FNPT, 3/4 in x 3/4 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 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
511DDDKMAA0125
Type
3/4 in x 3/4 in, Bronze
Max. Op Pressure
1,214 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

Product Description

The APOLLO POP Safety Relief Valve is an ASME Section VIII steam pressure relief valve in a 3/4 in x 3/4 in MNPT x FNPT configuration, constructed from bronze. It has a maximum operating pressure of 1,214 psi (MPN 511DDDKMAA0125).

Frequently Asked Questions

What is the APOLLO POP Safety Relief Valve used for?

The APOLLO POP Safety Relief Valve protects steam systems from overpressure. It is designed for ASME Section VIII applications, automatically relieving excess pressure to prevent equipment damage in boilers, pressure vessels, and industrial steam lines.

What are the specifications of the APOLLO 511DDDKMAA0125 valve?

This APOLLO POP valve has a 3/4 in x 3/4 in MNPT x FNPT connection, bronze body, and a maximum operating pressure of 1,214 psi. It is an ASME Section VIII steam pressure relief valve, model 511DDDKMAA0125.

Where to buy APOLLO safety relief valves worldwide?

3G Electric supplies APOLLO safety relief valves worldwide. As a global industrial sourcing partner, we handle full logistics and customs clearance to deliver genuine APOLLO valves to your facility, regardless of location.

How to select the correct APOLLO POP safety relief valve?

Select based on system pressure, connection size, and media. For steam applications, ensure the valve meets ASME Section VIII requirements. The APOLLO 511DDDKMAA0125 suits 3/4 in connections with a 1,214 psi set pressure. Consult a qualified engineer for sizing.

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 →

Similar products

Matched by specification & description
APOLLO POP Safety Relief Valve: MNPT x FNPT, 3/4 in x 1 in, 1,214 psi Max. Op Pressure, Bronze (MPN 511DDBKMAA0125). Key specifications — Brand: APOLLO.
APOLLO
APOLLO POP Safety Relief Valve: MNPT x FNPT, 3/4 in x 1 in, 1,214 psi Max. Op Pressure, Bronze (MPN 511DDBKMAA0125). Key specifications — Brand: APOLLO.
APOLLO POP Safety Relief Valve: MNPT x FNPT, 1/2 in x 3/4 in, 1,214 psi Max. Op Pressure, Bronze (MPN 511DCDKMAA0125). Key specifications — Brand: APOLLO.
APOLLO
APOLLO POP Safety Relief Valve: MNPT x FNPT, 1/2 in x 3/4 in, 1,214 psi Max. Op Pressure, Bronze (MPN 511DCDKMAA0125). Key specifications — Brand: 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 511EDBKMAA0125). Key specifications — Brand: APOLLO.
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 511EDBKMAA0125). Key specifications — Brand: APOLLO.
APOLLO POP Safety Relief Valve: MNPT x FNPT, 1/2 in x 1 in, 1,214 psi Max. Op Pressure, Bronze (MPN 511DCBKMAA0125). Key specifications — Brand: APOLLO.
APOLLO
APOLLO POP Safety Relief Valve: MNPT x FNPT, 1/2 in x 1 in, 1,214 psi Max. Op Pressure, Bronze (MPN 511DCBKMAA0125). Key specifications — Brand: APOLLO.
APOLLO POP Safety Relief Valve: MNPT x FNPT, 2 in x 3 in, 1,214 psi Max. Op Pressure, Bronze (MPN 511JHBKMAA0075). Key specifications — Brand: APOLLO.
APOLLO
APOLLO POP Safety Relief Valve: MNPT x FNPT, 2 in x 3 in, 1,214 psi Max. Op Pressure, Bronze (MPN 511JHBKMAA0075). Key specifications — Brand: APOLLO.
APOLLO POP Safety Relief Valve: MNPT x FNPT, 1 in x 1 1/4 in, 1,214 psi Max. Op Pressure, Bronze (MPN 511EEBKMAA0125). Key specifications — Brand: APOLLO.
APOLLO
APOLLO POP Safety Relief Valve: MNPT x FNPT, 1 in x 1 1/4 in, 1,214 psi Max. Op Pressure, Bronze (MPN 511EEBKMAA0125). Key specifications — Brand: APOLLO.

More from APOLLO

View all APOLLO parts →
APOLLO POP Safety Relief Valve: MNPT x FNPT, 1 1/4 in x 2 in, 1,214 psi Max. Op Pressure, Bronze (MPN 511GFBKMAA0175). Key specifications — Brand: APOLLO.
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). Key specifications — Brand: APOLLO.
APOLLO POP Safety Relief Valve: MNPT x FNPT, 1 in x 1 1/4 in, 1,214 psi Max. Op Pressure (MPN 543EEBKMAA0300). Key specifications — Brand: APOLLO.
APOLLO
APOLLO POP Safety Relief Valve: MNPT x FNPT, 1 in x 1 1/4 in, 1,214 psi Max. Op Pressure (MPN 543EEBKMAA0300). Key specifications — Brand: APOLLO.
APOLLO POP Safety Relief Valve: MNPT x FNPT, 3/4 in x 1 in, 1,214 psi Max. Op Pressure (MPN 541DDBKMAA0150). Key specifications — Brand: APOLLO.
APOLLO
APOLLO POP Safety Relief Valve: MNPT x FNPT, 3/4 in x 1 in, 1,214 psi Max. Op Pressure (MPN 541DDBKMAA0150). Key specifications — Brand: APOLLO.
APOLLO POP Safety Relief Valve: MNPT x FNPT, 1 in x 1 1/2 in, 1,214 psi Max. Op Pressure, Bronze (MPN 511FEBKMAA0200). Key specifications — Brand: APOLLO.
APOLLO
APOLLO POP Safety Relief Valve: MNPT x FNPT, 1 in x 1 1/2 in, 1,214 psi Max. Op Pressure, Bronze (MPN 511FEBKMAA0200). Key specifications — Brand: 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 523EDBKMAA0400). Key specifications — Brand: APOLLO.
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 523EDBKMAA0400). Key specifications — Brand: APOLLO.
APOLLO POP Safety Relief Valve: MNPT x FNPT, 2 in x 3 in, 1,214 psi Max. Op Pressure, Bronze (MPN 523JHBKMAA0450). Key specifications — Brand: APOLLO.
APOLLO
APOLLO POP Safety Relief Valve: MNPT x FNPT, 2 in x 3 in, 1,214 psi Max. Op Pressure, Bronze (MPN 523JHBKMAA0450). Key specifications — Brand: 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 511FFBKMAA0125). Key specifications — Brand: APOLLO.
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 511FFBKMAA0125). Key specifications — Brand: APOLLO.
APOLLO POP Safety Relief Valve: MNPT x FNPT, 1 1/4 in x 2 in, 1,214 psi Max. Op Pressure, Bronze (MPN 523GFBKMAA0400). Key specifications — Brand: APOLLO.
APOLLO
APOLLO POP Safety Relief Valve: MNPT x FNPT, 1 1/4 in x 2 in, 1,214 psi Max. Op Pressure, Bronze (MPN 523GFBKMAA0400). Key specifications — Brand: APOLLO.