RIIFO MLCP F18 Reducing Tee

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Useful Information

Technical Specification

  • Manufacturer: RIIFO
  • Materials:
    • Body: CW167N (16-32mm), RFH59-2 (40-75mm)
    • Sleeve: Stainless Steel 304
    • Collar: Polyethylene (PE)
    • O-rings: Ethylene Propylene Diene Monomer (EPDM)
  • Available Sizes: 16mm to 75mm
  • Compatible Press Profiles: TH and U
  • Operating Temperature: -25°C to +95°C
  • Pressure Rating: Up to 10 bar
  • Approvals: WRAS

Description

For branch connections that also need to change diameter, this reducing tee brings both functions together in a single fitting, constructed from a brass body, stainless steel sleeve, PE collar and EPDM sealing rings. The body uses CW167N brass across the 16 to 32mm combinations and RFH59-2 for the larger 40 to 75mm range, matching material strength to the size and pressure demands at each connection.

All three connection points carry leak before press (LBP) protection, so any outlet left unpressed will show a visible leak rather than staying hidden until the pipework is filled. The fitting works with TH and U pressing profiles across each connection, regardless of the diameter at that point, and every outlet remains adjustable after pressing, giving installers room to fine-tune alignment across a fitting that often has three different pipe runs meeting at once.

Rated to a maximum working pressure of 10 bar and an operating temperature range of -25°C to +95°C, this reducing tee is suited to branch connections in hot and cold water systems where pipe diameters differ, across both domestic and commercial multilayer installations, and holds WRAS approval for potable water use.

Key Features & Benefits

  • Branching with built-in size reduction: Combines a three-way branch connection with a diameter change, removing the need for a separate tee and reducer.
  • Leak before press indication: Every connection point will leak visibly if left unpressed, so an incomplete joint is caught before the system is commissioned.
  • Post-pressing flexibility: All three outlets can be adjusted after pressing, useful when aligning multiple pipe runs of differing diameters from one fitting.
  • Multi-profile press compatibility: Accepts TH, B and U pressing profiles at every connection, regardless of size variation across the fitting.
  • Corrosion-resistant sleeve: Made from grade 304 stainless steel, providing durable resistance to corrosion at all three connection points.

Approvals

Dimensions

Product Code Manufacturer Code Size (mm) A (mm) B (mm) L1 (mm) C (mm) D (mm) L2 (mm) E (mm) F (mm) L3 (mm) H (mm) L (mm)
493471 1100045876 16x20x16 11.75 20.2 26.1 15.75 24.2 26.1 11.75 20.2 26.1 41.2 86.4
493472 1100068487 16x25x16 11.75 20.2 26.1 19.75 29.4 33.3 11.75 20.2 26.1 46.5 93.4
493473 1100046417 20x16x16 15.75 24.2 26.1 11.75 20.2 26.1 11.75 20.2 26.1 43.2 82.4
493474 1100046418 20x16x20 15.75 24.2 26.1 11.75 20.2 26.1 15.75 24.2 26.1 43.2 82.4
493475 1100046419 20x20x16 15.75 24.2 26.1 15.75 30.4 26.1 11.75 20.2 26.1 43.2 86.4
493476 1100064428 20x25x20 15.75 24.2 26.1 19.75 29.4 33.3 15.75 24.2 26.1 50.5 92.4
493477 1100064429 25x16x16 19.75 29.4 33.3 11.75 20.2 26.1 11.75 20.2 26.1 46.2 89.7
493478 1100064431 25x16x25 19.75 29.4 33.3 11.75 20.2 26.1 19.75 29.4 33.3 45.2 99.0
493479 1100064433 25x20x20 19.75 29.4 33.3 15.75 24.2 26.1 15.75 24.2 26.1 46.2 93.7
493480 1100046420 25x20x25 19.75 29.4 33.3 15.75 24.2 26.1 19.75 30.4 33.3 46.2 101.0
493481 1100064434 25x25x16 19.75 29.4 33.3 19.75 29.4 33.3 11.75 20.2 26.1 53.5 99.7
493482 1100064435 25x25x20 19.75 29.4 33.3 19.75 29.4 33.3 15.75 24.2 26.1 53.5 99.7
493483 1100047055 32x16x32 25.75 36.4 33.3 25.75 36.4 33.3 25.75 36.4 33.3 48.2 99.0
493484 1100046421 32x20x32 25.75 36.4 33.3 15.75 24.2 26.1 25.75 36.4 33.3 49.2 101.0
493485 1100064437 32x25x25 25.75 36.4 33.3 19.75 29.4 26.1 19.75 29.4 33.3 56.5 107.0
493486 1100045886 32x25x32 25.75 36.4 33.3 19.75 29.4 33.3 25.75 36.4 33.3 56.5 107.0
493487 1100058489 40x16x40 31.75 43.5 43.2 11.75 20.2 26.1 31.75 43.5 43.2 52.2 120.0
493488 1100058438 40x20x40 31.75 43.5 43.2 15.75 24.2 26.1 31.75 43.5 43.2 52.2 124.0
493489 1100058481 40x25x32 31.75 43.5 43.2 19.75 30.4 33.3 25.75 36.4 33.3 61.5 116.5
493490 1100058490 40x25x40 31.75 43.5 43.2 19.75 30.4 33.3 31.75 43.5 43.2 61.5 127.0
493491 1100058440 40x32x32 31.75 43.5 43.2 25.75 36.4 33.3 25.75 36.4 33.3 61.5 123.5
493492 1100058441 40x32x40 31.75 43.5 43.2 25.75 36.4 33.3 31.75 43.5 43.2 61.5 134.0
493493 1100058491 40x50x40 31.75 43.5 43.2 43.80 53.5 43.5 31.75 43.5 43.2 70.2 155.0
493494 1100058492 50x20x50 40.75 53.5 43.5 15.75 24.2 26.1 43.80 53.5 43.5 58.2 129.4
493495 1100058482 50x25x40 40.75 53.5 43.5 19.75 29.4 33.3 31.75 43.5 43.2 65.5 128.7
493496 1100058493 50x25x50 40.75 53.5 43.5 19.75 30.4 33.3 43.80 53.5 43.5 65.5 129.4
493497 1100058442 50x32x50 40.75 53.5 43.5 25.75 36.4 36.4 43.80 53.5 43.5 65.5 138.4
493498 1100058443 50x40x50 40.75 53.5 43.5 31.75 43.5 43.5 43.80 53.5 43.5 77.5 145.4
493499 1100058484 63x25x63 50.70 67.4 66.2 19.75 29.4 33.3 50.70 67.4 66.2 73.5 178.4
493500 1100058444 63x32x63 50.70 67.4 66.2 25.75 36.4 33.3 50.70 67.4 66.2 73.5 181.4
493501 1100058445 63x40x63 50.70 67.4 66.2 31.75 43.5 43.2 50.70 67.4 66.2 84.0 191.4
493502 1100058446 63x50x63 50.70 67.4 66.2 43.80 53.5 43.5 50.70 67.4 66.2 84.7 201.4
493503 1100058485 75x32x75 59.60 79.6 66.8 25.75 36.4 33.3 59.60 79.6 66.8 78.5 183.4
493504 1100058447 75x40x75 59.60 79.6 66.8 31.75 43.5 43.2 59.60 79.6 66.8 88.0 194.4
493505 1100058448 75x50x75 59.60 79.6 66.8 43.80 53.5 43.5 59.60 79.6 66.8 88.7 199.4
493506 1100058494 75x63x75 59.60 79.6 66.8 50.70 67.4 66.2 59.60 79.6 66.8 110.7 211.4

Installation Instructions

  1. Cutting: Cut the multilayer pipe perpendicular to its length, taking care not to damage the pipe when removing any packaging beforehand. A clean, square cut is essential, as an improperly cut end can cause the finished joint to leak. For pipe diameters of 32mm and above, a wheel pipe cutter should be used.

  2. Round & Bevel: Using a bevelling tool that matches the pipe diameter, push the tool fully onto the pipe until the blades engage, then rotate it clockwise several times. The calibrating mandrel restores the pipe to a true circle while the blades cut an even bevel, allowing the pipe to enter the fitting without catching or damaging the O-rings. If a drill-driven tool is used, keep the speed below 500 rpm.

  3. Inspection: Check the pipe visually for damage or impurities and confirm the bevel is uniform around the full circumference before proceeding. A few seconds of inspection here prevent a failed joint later.

  4. Insertion: Select a fitting matching the pipe diameter, align it with the pipe, and push the pipe in until it seats against the fitting shoulder. Correct insertion depth is confirmed when the pipe is visible through the inspection windows in the fitting sleeve.

  5. Jaw Selection: Attach a press jaw or insert of the correct profile and diameter to the pressing tool, checking both are in good working condition. Note that while F18 fittings are multi-profile, the jaws sit differently on the press sleeve: a TH jaw locates with its wide groove over the plastic fixing ring, while a U jaw fits directly onto the metal sleeve using the edge of the fixing ring as its stop.

  6. Pressing: Make sure the pipe and fitting are completely free of stress, then close the jaw and complete the press. With a battery or electric tool, the cycle is complete when the jaw is fully closed, and most machines signal this. With the manual pressing tool, close the handles in one smooth, continuous motion until the touch points on the handles meet, without releasing until the jaw has fully closed. Each connection must only ever be pressed once. Open the jaw, remove the tool, and the joint is complete.

For more information and technical diagrams, see the RIIFO Installation Guidelines.

Downloads

RIIFO Product CatalogueRIIFO Product Catalogue
Product Catalogue

IMPORTANT: The technical data given on this website is for preliminary information purposes only and is published without guarantee. All line drawings are for illustrative purposes only and should not be regarded as wholly accurate in every detail. We reserve the right to withdraw or to alter the specification of any product without notice. For more information, please consult our Terms of Business.

If you require any further information, our excellent customer service team is here to help so please call us on 01794 835835.

 

Grouped product items
Code Product Name List Price You Save You Pay Quantity
493471 RIIFO MLCP F18 Reducing Tee 16mm x 20mm x 16mm £6.36 50%
You Pay:  £3.18
493472 RIIFO MLCP F18 Reducing Tee 16mm x 25mm x 16mm £11.04 50%
You Pay:  £5.52
493473 RIIFO MLCP F18 Reducing Tee 20mm x 16mm x 16mm £6.48 50%
You Pay:  £3.24
493474 RIIFO MLCP F18 Reducing Tee 20mm x 16mm x 20mm £6.60 50%
You Pay:  £3.30
493475 RIIFO MLCP F18 Reducing Tee 20mm x 20mm x 16mm £6.96 50%
You Pay:  £3.48
493476 RIIFO MLCP F18 Reducing Tee 20mm x 25mm x 20mm £9.16 50%
You Pay:  £4.58
493477 RIIFO MLCP F18 Reducing Tee 25mm x 16mm x 16mm £8.16 50%
You Pay:  £4.08
493478 RIIFO MLCP F18 Reducing Tee 25mm x 16mm x 25mm £9.92 50%
You Pay:  £4.96
493479 RIIFO MLCP F18 Reducing Tee 25mm x 20mm x 20mm £9.44 50%
You Pay:  £4.72
493480 RIIFO MLCP F18 Reducing Tee 25mm x 20mm x 25mm £10.68 50%
You Pay:  £5.34
493481 RIIFO MLCP F18 Reducing Tee 25mm x 25mm x 16mm £10.92 50%
You Pay:  £5.46
493482 RIIFO MLCP F18 Reducing Tee 25mm x 25mm x 20mm £11.48 50%
You Pay:  £5.74
493483 RIIFO MLCP F18 Reducing Tee 32mm x 16mm x 32mm £13.28 50%
You Pay:  £6.64
493484 RIIFO MLCP F18 Reducing Tee 32mm x 20mm x 32mm £14.32 50%
You Pay:  £7.16
493485 RIIFO MLCP F18 Reducing Tee 32mm x 25mm x 25mm £15.64 50%
You Pay:  £7.82
493486 RIIFO MLCP F18 Reducing Tee 32mm x 25mm x 32mm £16.48 50%
You Pay:  £8.24
493487 RIIFO MLCP F18 Reducing Tee 40mm x 16mm x 40mm £28.52 50%
You Pay:  £14.26
493488 RIIFO MLCP F18 Reducing Tee 40mm x 20mm x 40mm £26.68 50%
You Pay:  £13.34
493489 RIIFO MLCP F18 Reducing Tee 40mm x 25mm x 32mm £25.08 50%
You Pay:  £12.54
493490 RIIFO MLCP F18 Reducing Tee 40mm x 25mm x 40mm £26.80 50%
You Pay:  £13.40
493491 RIIFO MLCP F18 Reducing Tee 40mm x 32mm x 32mm £23.68 50%
You Pay:  £11.84
493492 RIIFO MLCP F18 Reducing Tee 40mm x 32mm x 40mm £28.36 50%
You Pay:  £14.18
493493 RIIFO MLCP F18 Reducing Tee 40mm x 50mm x 40mm £41.16 50%
You Pay:  £20.58
493494 RIIFO MLCP F18 Reducing Tee 50mm x 20mm x 50mm £31.72 50%
You Pay:  £15.86
493495 RIIFO MLCP F18 Reducing Tee 50mm x 25mm x 40mm £33.28 50%
You Pay:  £16.64
493496 RIIFO MLCP F18 Reducing Tee 50mm x 25mm x 50mm £33.04 50%
You Pay:  £16.52
493497 RIIFO MLCP F18 Reducing Tee 50mm x 32mm x 50mm £35.24 50%
You Pay:  £17.62
493498 RIIFO MLCP F18 Reducing Tee 50mm x 40mm x 50mm £43.24 50%
You Pay:  £21.62
493499 RIIFO MLCP F18 Reducing Tee 63mm x 25mm x 63mm £55.08 50%
You Pay:  £27.54
493500 RIIFO MLCP F18 Reducing Tee 63mm x 32mm x 63mm £62.72 50%
You Pay:  £31.36
493501 RIIFO MLCP F18 Reducing Tee 63mm x 40mm x 63mm £69.60 50%
You Pay:  £34.80
493502 RIIFO MLCP F18 Reducing Tee 63mm x 50mm x 63mm £73.68 50%
You Pay:  £36.84
493503 RIIFO MLCP F18 Reducing Tee 75mm x 32mm x 75mm £90.28 50%
You Pay:  £45.14
493504 RIIFO MLCP F18 Reducing Tee 75mm x 40mm x 75mm £90.84 50%
You Pay:  £45.42
493505 RIIFO MLCP F18 Reducing Tee 75mm x 50mm x 75mm £93.96 50%
You Pay:  £46.98
493506 RIIFO MLCP F18 Reducing Tee 75mm x 63mm x 75mm £106.72 50%
You Pay:  £53.36