Mercer Rubber Part No. 4020120 · In stock
Mercer Rubber Flexmore Style 451 Rubber Expansion Joint, 2-1/2 in (65 mm) 4020120
The Mercer Rubber 4020120 is a genuine Mercer Rubber Flexmore Style 451 Rubber Expansion Joint, 2-1/2 in (65 mm). G Service Power has this unit brand new and boxed, in stock in the UK at £60, ready for next-day worldwide dispatch. Call +44 7951 632187.
Actual unit photographs. Further photos and video on request.
Specification
| Part number (MPN) | 4020120 |
|---|---|
| Manufacturer | Mercer Rubber |
| Product | Flexmore Style 451 Rubber Expansion Joint, 2-1/2 in (65 mm) |
| Body marking | 451 FULL VACUUM 2 1/2 in 65 mm; SEN rating panel |
| Box label | 4020120 FLEX CONNECTOR 3" 451SEN — see size note |
| Size | 2-1/2 in (65 mm) on the joint; the box says 3 in — please measure |
| Type | Mercer Flexmore Series 450, Style 451 single-arch expansion joint |
| Retaining rings | Split ductile iron, orange, cast 2 1/2 65 |
| Flange drilling | 150 lb ASA; 2-1/2 in: 7 in OD, 5-1/2 in bolt circle, 4 × 3/4 in holes |
| Face to face | 6 in (150 mm) |
| Rating (Mercer) | 250 psig at 150 °F; full vacuum |
| Condition | Brand new — unused, in original Mercer box with storage wear |
| Quantity available | 1 unit |
| Location | UK — ready to ship worldwide |
| Condition | Brand New |
| Availability | In stock — next-day worldwide dispatch |
| Price | £60 ex works UK, excl. VAT |
| Reference | GX-4020120 |
Compatibility
Related part numbers: WA451 (related part (same system), Mercer Rubber) and 452 (related part (same system), Mercer Rubber).
Interchangeable & related part numbers
| Part number | Brand | Relation | Notes |
|---|---|---|---|
| WA451 | Mercer Rubber | Related part (same system) | the designation Mercer's current Series 450 bulletin uses for the single-arch joint in 1-1/2 to 12 in |
| 452 | Mercer Rubber | Related part (same system) | two-arch version of the same series, 10 in face to face at 2-1/2 and 3 in |
The joint is moulded 2-1/2 in (65 mm) but boxed as 3 in: measure the bolt circle (5-1/2 in for 2-1/2 in, 6 in for 3 in) before ordering. Mercer requires control rods in unanchored piping and flat or raised-face mating flanges. Fitment and interchange data is compiled from manufacturer catalogues and cross-reference listings and can change at engine serial-number breaks. Quote your engine serial number and existing part number when you call and we will confirm before dispatch.
About this part
The Mercer Rubber Flexmore Style 451 Rubber Expansion Joint, 2-1/2 in (65 mm) — part number 4020120 is a genuine Mercer Rubber part, supplied at £60 by G Service Power. It is brand new, held in UK stock and dispatched next day, worldwide.
Mercer Rubber Company Flexmore Style 451 rubber expansion joint (flex connector), boxed under part number 4020120. The rubber body is moulded 451 FULL VACUUM 2 1/2 in 65 mm with an SEN rating panel, and the split flange retaining rings are cast 2 1/2 65, so the joint itself is 2-1/2 in (65 mm); the Mercer box label reads 4020120 FLEX CONNECTOR 3" 451SEN and the box is printed 3 in ID × 6 in face to face (see photos). Fitted between a pump, engine cooling circuit or other vibrating machine and the rigid pipework, the flexible arch absorbs vibration, noise, thermal movement and slight misalignment, protecting pump casings, flanges and pipe joints. Mercer's Series 450 bulletin describes Style 451 as the single-arch joint, built from fabric and tire-cord plies moulded with integral flanges and ductile iron retaining rings, drilled 150 lb ASA (ANSI 150) and rated 250 psig at up to 150 °F and full vacuum. For 2-1/2 in it gives a 6 in face-to-face length, a 7 in flange OD and a 5-1/2 in bolt circle with four 3/4 in holes, and allows 2 in compression, 1-1/8 in extension, 1-1/8 in lateral and 35° angular movement; a 3 in joint has a 6 in bolt circle, so measuring it settles the size. Condition: brand new and unused, in its original Mercer box, which shows storage wear. One available at £60 plus VAT. Please confirm size, flange drilling and pressure rating against your system before ordering. In UK stock — call +44 7951 632187 or message on WhatsApp for shipping and availability.
Compatibility: the full list of engines and interchangeable part numbers is on the . Confirm against your engine serial number before ordering, or call us and we will check it with you.
Part number & references
For sale from UK stock. Quote any of these references when you call.
| Part number | 4020120 |
|---|
Frequently asked questions
- Which part numbers are related to 4020120?
- The related numbers are WA451 (related part (same system), Mercer Rubber) and 452 (related part (same system), Mercer Rubber). None of these is confirmed as the same part or a direct replacement, so match the number on your existing part before ordering.
- What is the Mercer Rubber 4020120?
- Mercer Rubber Company Flexmore Style 451 rubber expansion joint (flex connector), boxed under part number 4020120.
- Is the 4020120 new or used?
- This unit is brand new, supplied from UK stock.
- How much is it and how do I buy it?
- £60 ex works UK, excl. VAT. Call G Service Power on +44 7951 632187 or message on WhatsApp.
- Do you ship worldwide?
- Yes. In-stock items are dispatched next day and shipped worldwide with export packing and documentation.