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MERSEN S3-03-20B Graphite Rupture Disc, 20 psig, 3 in - Rupture Discs
MERSENRupture Discs

MERSEN S3-03-20B Graphite Rupture Disc, 20 psig, 3 in

The MERSEN Rupture Disc with Bar Support (MPN S3-03-20B) is a graphite-bodied rupture disc designed for a 20 psig burst pressure and compatibility with 3-inch pipe sizes. This industrial safety device provides…

SKU 3G-OTH-440511

Also listed as: S30320B · S3 03 20B

Brand
MERSEN
Item
S3-03-20B Graphite Rupture Disc, 20 psig, 3 in
Part Number
S3-03-20B
Category
Rupture Discs
Available to Order
Also known as:S3-03-20BMERSEN
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Technical Specifications

MERSEN
Manufacturer Part Number
S3-03-20B
Type
Graphite
Body Material
Graphite
Compatible Pipe Size
3 in

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

Product Description

The MERSEN Rupture Disc with Bar Support (MPN S3-03-20B) is a graphite-bodied rupture disc designed for a 20 psig burst pressure and compatibility with 3-inch pipe sizes. This industrial safety device provides overpressure protection by bursting at its rated set pressure.

Frequently Asked Questions

What is the MERSEN S3-03-20B rupture disc used for?

The MERSEN S3-03-20B rupture disc provides overpressure protection in industrial piping systems. It is designed to burst at 20 psig, safeguarding equipment and personnel from excessive pressure buildup. Common applications include chemical processing, oil and gas, and pharmaceutical plants where reliable pressure relief is critical.

What are the specifications of the MERSEN S3-03-20B rupture disc?

The MERSEN S3-03-20B is a graphite rupture disc with a burst pressure rating of 20 psig. It is compatible with 3-inch pipe sizes and features a bar support design. The body material is graphite, and the manufacturer part number is S3-03-20B. This disc is suitable for overpressure relief in industrial systems.

Where to buy the MERSEN S3-03-20B rupture disc worldwide?

3G Electric supplies the MERSEN S3-03-20B rupture disc to customers worldwide. As a global industrial equipment distributor, we handle full logistics, customs clearance, and delivery to your location. Contact our team to place an order or request a quote for this graphite rupture disc.

How to select the correct MERSEN rupture disc for my system?

To select the correct MERSEN rupture disc, verify your system's required burst pressure and pipe size. The S3-03-20B is rated for 20 psig and fits 3-inch pipes. Ensure the disc material (graphite) is compatible with your process media and temperature. Consult a safety engineer or contact 3G Electric for guidance on proper selection.

Used in

Common applications for MERSEN
Industrial control panels — Mersen USCC1 and USCC2 UL Class CC fuse blocks for DIN rail mounting and finger-safe branch circuit protection.
Motor starters — Mersen ATQ time-delay fuses and DAR0 R-rated fuses for motor overload and short-circuit protection.
Power supplies and instrumentation — Mersen GGM and GSB fast-acting cylindrical fuses for overcurrent protection in compact electronic circuits.
DC systems — Mersen A30QS very-fast-acting square fuses rated 300 V DC for semiconductor and DC equipment protection.
Medium-voltage distribution — Mersen DAR0 R-rated fuses rated 5.08 kV AC for general-purpose overcurrent protection with visual indication.
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MERSEN Products

3G Electric supplies MERSEN rupture discs. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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