SPEARSThreaded Expansion Joints

SPEARS Expansion Joint: 3 in Pipe Size, 9 in Overall Lg

The SPEARS EJ21-030CSR is a 3 in pipe size threaded expansion joint with a 9 in overall length, constructed from CPVC with an EPDM bulb. It is rated for a maximum operating pressure of 150 psi.

SKU 3G-OTH-653804

Brand

SPEARS

Item

Expansion Joint: 3 in Pipe Size, 9 in Overall Lg

Technical Specifications

SPEARS

Manufacturer Part Number

EJ21-030CSR 

Type

CPVC with EPDM Bulb 

Overall Lg

9 in 

Maximum Operating Pressure

150 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

SPEARS Products

3G Electric (S) Pte. Ltd. — Singapore

Product Description

The SPEARS EJ21-030CSR is a 3 in pipe size threaded expansion joint with a 9 in overall length, constructed from CPVC with an EPDM bulb. It is rated for a maximum operating pressure of 150 psi.

Frequently Asked Questions

What is the SPEARS EJ21-030CSR expansion joint used for?

The SPEARS EJ21-030CSR is a threaded expansion joint used in CPVC piping systems to absorb thermal expansion and contraction, reducing stress on pipes and fittings. It is common in industrial plumbing, chemical processing, and HVAC applications where temperature fluctuations occur.

What are the specifications of the SPEARS EJ21-030CSR?

The SPEARS EJ21-030CSR has a 3 in pipe size, 9 in overall length, and is made of CPVC with an EPDM bulb. It is rated for a maximum operating pressure of 150 psi. This threaded expansion joint is designed for reliable performance in corrosive environments.

Where to buy the SPEARS EJ21-030CSR expansion joint worldwide?

3G Electric supplies the SPEARS EJ21-030CSR expansion joint to customers worldwide. We handle full logistics, customs clearance, and delivery to your site. Contact us for pricing and lead time on this CPVC expansion joint with EPDM bulb.

How to install a threaded CPVC expansion joint like the SPEARS EJ21-030CSR?

Install the SPEARS EJ21-030CSR by threading it into the pipe system using PTFE tape or pipe dope on the threads. Ensure the joint is aligned to allow axial movement. Support the piping to prevent stress on the joint. Follow standard CPVC installation practices for best results.

Used in

Common applications for SPEARS

Chemical processing — SPEARS CPVC ball valves (e.g., 3632R series) for corrosive fluid isolation in piping manifolds.

Water treatment — SPEARS PVC gate valves (e.g., 2011-012) for flow control in filtration and distribution lines.

HVAC systems — SPEARS CPVC ball valves (e.g., 2131-010C) for shut-off in chilled water or condenser loops.

Industrial waste handling — SPEARS CPVC gate valves (e.g., 2031-005C) for chemical drain lines requiring corrosion resistance.

Plumbing and irrigation — SPEARS PVC gate valves (e.g., 2012-010) for on/off service in non-potable water systems.

SPEARS Products

3G Electric supplies SPEARS threaded expansion joints. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

Browse all SPEARS products →Contact our engineers →

You might also need

Burners & Combustion →Pumps & Compressors →Spare Parts →All Products →

More from SPEARS

View all SPEARS parts →

SPEARS

Expansion Joint: 1 in Pipe Size, 7.75 in Overall Lg, CPVC with EPDM Bulb (MPN EJ21-010CSR). Key specifications — Maximum Operating Pressure: 150 psi.

SPEARS

Expansion Joint: 2 in Pipe Size, 7.38 in Overall Lg, CPVC with EPDM Bulb (MPN EJ21-020CSR). Key specifications — Maximum Operating Pressure: 150 psi.

SPEARS

Expansion Joint: 1 1/2 in Pipe Size, 7.75 in Overall Lg, CPVC with EPDM Bulb (MPN EJ21-015CSR). Key specifications — Maximum Operating Pressure: 150 psi.