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APOLLOASME Section IV Temperature & Pressure Relief Valves

APOLLO 18C402X38 ASME Section IV Temperature & Pressure Relief Valve

The APOLLO Temperature and Pressure Relief Valve: M x F is an ASME Section IV temperature and pressure relief valve with a bronze body. It features a 3/4 in x 3/4 in connection size and is identified by manufacturer…

SKU 3G-OTH-437128

Brand
APOLLO
Item
18C402X38 ASME Section IV Temperature & Pressure Relief Valve
Category
ASME Section IV Temperature & Pressure Relief Valves
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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
18C402X38
Type
Bronze
Body Material
Bronze
Connection Size
3/4 in x 3/4 in

Technical Documents

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

Product Description

The APOLLO Temperature and Pressure Relief Valve: M x F is an ASME Section IV temperature and pressure relief valve with a bronze body. It features a 3/4 in x 3/4 in connection size and is identified by manufacturer part number 18C402X38.

Frequently Asked Questions

What is the APOLLO Temperature and Pressure Relief Valve used for?

The APOLLO 18C402X38 is an ASME Section IV temperature and pressure relief valve designed to protect water heaters and boilers from overpressure and overtemperature. Its bronze body and 3/4 in x 3/4 in connection make it suitable for commercial and industrial hot-water systems.

What are the specifications of the APOLLO 18C402X38 valve?

The APOLLO 18C402X38 is a bronze-bodied temperature and pressure relief valve with a 3/4 in x 3/4 in male x female connection. It is ASME Section IV rated and carries manufacturer part number 18C402X38. The bronze construction provides corrosion resistance in hot-water applications.

Where to buy the APOLLO 18C402X38 valve worldwide?

3G Electric supplies the APOLLO 18C402X38 temperature and pressure relief valve to customers worldwide. We handle full logistics, customs clearance, and delivery to your site. Contact us for a quote and lead time on this bronze-bodied ASME Section IV valve.

How to install an APOLLO temperature and pressure relief valve?

Install the APOLLO 18C402X38 valve in the designated tapping of the water heater or boiler, ensuring the discharge pipe is directed to a safe drain. Use thread sealant on the 3/4 in male connection. Never cap or plug the outlet. Follow local codes and the manufacturer's instructions.

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 temperature & pressure relief valves. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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Compatible alternatives & equivalents

Cross-referenced by specification & description
Bronze body temperature and pressure relief valve compliant with ASME Section IV. Features FNPT x FNPT connections. Used in hot water heating systems and storage tanks to automatically relieve excess pressure or temperature, protecting equipment and personnel
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Bronze body temperature and pressure relief valve compliant with ASME Section IV. Features FNPT x FNPT connections. Used in hot water heating systems and storage tanks to automatically relieve excess pressure or temperature, protecting equipment and personnel
ASME Section IV hot water pressure relief valve with bronze body and FNPT x FNPT connections. Opens automatically to relieve excess pressure at 75 psi maximum operating pressure. Used in hydronic heating systems to protect boilers and water heaters from overpressure conditions
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ASME Section IV hot water pressure relief valve with bronze body and FNPT x FNPT connections. Opens automatically to relieve excess pressure at 75 psi maximum operating pressure. Used in hydronic heating systems to protect boilers and water heaters from overpressure conditions
Bronze pressure relief valve with 3/4 in FNPT x FNPT connections. ASME Section IV certified for hot water service. Maximum operating pressure 80 psi. Used in hydronic heating systems to protect boilers and water heaters from overpressure
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Bronze pressure relief valve with 3/4 in FNPT x FNPT connections. ASME Section IV certified for hot water service. Maximum operating pressure 80 psi. Used in hydronic heating systems to protect boilers and water heaters from overpressure
APOLLO Relief Valve: MNPT x FNPT, 3/4 in x 3/4 in, Bronze, 94 psi Max. Op Pressure (MPN 1041705)
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APOLLO Relief Valve: MNPT x FNPT, 3/4 in x 3/4 in, Bronze, 94 psi Max. Op Pressure (MPN 1041705)
This ASME Section IV hot water pressure relief valve features a bronze body with 3/4 in MNPT inlet and 3/4 in FNPT outlet. It is designed to automatically release water when system pressure exceeds 94 psi, protecting boilers and water heaters in hydronic heating systems
APOLLO
This ASME Section IV hot water pressure relief valve features a bronze body with 3/4 in MNPT inlet and 3/4 in FNPT outlet. It is designed to automatically release water when system pressure exceeds 94 psi, protecting boilers and water heaters in hydronic heating systems
ASME Section IV hot water pressure relief valve with 3/4 in FNPT inlet and 1 in FNPT outlet. Bronze body construction. Maximum operating pressure 160 psi. Used in hydronic heating systems to protect boilers and water heaters from overpressure
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ASME Section IV hot water pressure relief valve with 3/4 in FNPT inlet and 1 in FNPT outlet. Bronze body construction. Maximum operating pressure 160 psi. Used in hydronic heating systems to protect boilers and water heaters from overpressure

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This bronze-bodied temperature and pressure relief valve is designed in accordance with ASME Section IV. It features male NPT x female NPT connections. Used to protect water heaters and storage tanks from excessive temperature or pressure in hydronic systems
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This bronze-bodied temperature and pressure relief valve is designed in accordance with ASME Section IV. It features male NPT x female NPT connections. Used to protect water heaters and storage tanks from excessive temperature or pressure in hydronic systems
This APOLLO temperature and pressure relief valve features a bronze body and MNPT x FNPT connections. It is ASME Section IV certified for use on water heaters, boilers, and other pressure vessels to protect against over-temperature and over-pressure conditions
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This APOLLO temperature and pressure relief valve features a bronze body and MNPT x FNPT connections. It is ASME Section IV certified for use on water heaters, boilers, and other pressure vessels to protect against over-temperature and over-pressure conditions
This APOLLO temperature and pressure relief valve is constructed with a bronze body and features MNPT x FNPT connections. It is designed for overpressure and overtemperature protection in hot water heating systems and storage tanks, complying with ASME Section IV standards
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This APOLLO temperature and pressure relief valve is constructed with a bronze body and features MNPT x FNPT connections. It is designed for overpressure and overtemperature protection in hot water heating systems and storage tanks, complying with ASME Section IV standards
This ASME Section IV temperature and pressure relief valve features a bronze body with FNPT x FNPT connections. It is designed to protect water heaters and storage tanks by automatically relieving excess temperature or pressure in hot-water heating systems
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This ASME Section IV temperature and pressure relief valve features a bronze body with FNPT x FNPT connections. It is designed to protect water heaters and storage tanks by automatically relieving excess temperature or pressure in hot-water heating systems
This bronze temperature and pressure relief valve is constructed in accordance with ASME Section IV. It features MNPT inlet and FNPT outlet connections. The valve is used to protect hot water heating systems and storage tanks from excessive temperature or pressure by automatically opening to relieve excess conditions
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This bronze temperature and pressure relief valve is constructed in accordance with ASME Section IV. It features MNPT inlet and FNPT outlet connections. The valve is used to protect hot water heating systems and storage tanks from excessive temperature or pressure by automatically opening to relieve excess conditions
Bronze-bodied temperature and pressure relief valve complying with ASME Section IV. Designed for overpressure and overtemperature protection in hot water heating systems. Features MNPT x FNPT connections. Suitable for commercial and residential boiler applications
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Bronze-bodied temperature and pressure relief valve complying with ASME Section IV. Designed for overpressure and overtemperature protection in hot water heating systems. Features MNPT x FNPT connections. Suitable for commercial and residential boiler applications
Bronze body temperature and pressure relief valve complying with ASME Section IV. Features MNPT inlet and FNPT outlet connections. Used to protect hot water heating systems and storage tanks from excessive temperature or pressure by automatically discharging water when unsafe conditions occur
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Bronze body temperature and pressure relief valve complying with ASME Section IV. Features MNPT inlet and FNPT outlet connections. Used to protect hot water heating systems and storage tanks from excessive temperature or pressure by automatically discharging water when unsafe conditions occur
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This APOLLO temperature and pressure relief valve is constructed with a bronze body and complies with ASME Section IV. It features male NPT x female NPT connections and is used for overpressure protection in systems such as boilers, water heaters, and pressure vessels