RIIFO MLCP F18 Male Coupling

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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 x 1/2" to 75mm x 2 1/2"
  • Compatible Press Profiles: TH and U
  • Thread Type: BSPT Male
  • Operating Temperature: -25°C to +95°C
  • Pressure Rating: Up to 10 bar
  • Approvals: WRAS

Description

Where multilayer pipe needs to connect to a female-threaded fitting, valve or appliance, this male coupler provides the transition in a single component, built from a brass body, stainless steel sleeve, PE collar and EPDM sealing rings on the press end, with a male BSP thread on the other. The body is manufactured in CW167N brass for sizes up to 32mm and RFH59-2 for the larger 40 to 75mm range, matching material strength to the demands of each size.

The press end carries leak before press (LBP) protection, so an unpressed connection will show a visible leak rather than remaining hidden once the system is filled. It accepts TH and U pressing profiles, giving installers a choice of compatible tools.

Rated to a maximum working pressure of 10 bar and an operating range of -25°C to +95°C, this coupler is suited to linking multilayer pipe into threaded fittings, valves and appliance connections across domestic and commercial hot and cold water systems, and holds WRAS approval for potable water use.

Key Features & Benefits

  • Pipe-to-thread transition: Converts a multilayer pipe end into a male BSP threaded connection, allowing direct connection to valves, appliances and other threaded fittings.
  • Leak before press indication: The press end will leak visibly if left unpressed, flagging an incomplete connection before the system is commissioned.
  • Post-pressing flexibility: The pressed end can still be rotated into position afterwards, making it easier to align the male thread correctly.
  • Multi-profile press compatibility: Accepts TH, B and U pressing profiles on the press end, working with a range of pressing tools.
  • Corrosion-resistant sleeve: Made from grade 304 stainless steel, giving lasting resistance to corrosion at the press connection.

Approvals

Dimensions

Product Code Manufacturer Code Size (mm x inch) A (mm) B (mm) C (inch)  L1 (mm)  L (mm) P (mm)
493507 1100046433 16 x 1/2" 11.75 20.2 1/2" 26.1 49.2 14.0
493508 1100046434 16 x 3/4" 11.75 20.2 3/4" 26.1 50.2 15.0
493509 1100046435 20 x 1/2" 15.75 24.2 1/2" 26.1 49.2 14.0
493510 1100046436 20 x 3/4" 15.75 24.2 3/4" 26.1 50.2 15.0
493511 1100064372 25 x 1/2" 19.75 29.4 1/2" 26.1 55.2 14.0
493512 1100064394 25 x 3/4" 19.75 29.4 3/4" 33.3 57.5 15.0
493513 1100064381 25 x 1" 19.75 29.4 1" 33.3 59.5 16.0
493514 1100064368 32 x 3/4" 25.75 36.4 3/4" 33.3 57.2 15.0
493515 1100047058 32 x 1" 25.75 36.4 1" 33.3 58.5 16.0
493516 1100045808 32 x 1 1/4" 25.75 36.4 1 1/4" 33.3 63.0 19.5
493517 1100058496 40 x 1" 31.75 43.5 1" 43.2 77.5 16.0
493518 1100058406 40 x 1 1/4" 40.75 53.5 1 1/2" 43.5 81.7 19.5
493519 1100058495 40 x 1 1/2" 31.75 43.5 1 1/2" 43.2 81.0 19.5
493520 1100058411 50 x 1 1/2" 40.75 53.5 1 1/2" 43.5 81.7 19.5
493521 1100058497 50 x 2" 40.75 53.5 2" 43.5 86.7 24.0
493522 1100058498 63 x 1 1/2" - - 1 1/2" - - -
493523 1100058412 63 x 2" 50.70 67.4 2" 66.2 109.7 24.0
493524 1100058413 75 x 2 1/2" 59.60 79.6 2" 66.8 113.7 19.5

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
493507 RIIFO MLCP F18 Male Coupling 16mm x 1/2" £3.24 50%
You Pay:  £1.62
493508 RIIFO MLCP F18 Male Coupling 16mm x 3/4" £4.24 50%
You Pay:  £2.12
493509 RIIFO MLCP F18 Male Coupling 20mm x 1/2" £3.92 50%
You Pay:  £1.96
493510 RIIFO MLCP F18 Male Coupling 20mm x 3/4" £4.36 50%
You Pay:  £2.18
493511 RIIFO MLCP F18 Male Coupling 25mm x 1/2" £6.80 50%
You Pay:  £3.40
493512 RIIFO MLCP F18 Male Coupling 25mm x 3/4" £6.40 50%
You Pay:  £3.20
493513 RIIFO MLCP F18 Male Coupling 25mm x 1" £7.60 50%
You Pay:  £3.80
493514 RIIFO MLCP F18 Male Coupling 32mm x 3/4" £8.60 50%
You Pay:  £4.30
493515 RIIFO MLCP F18 Male Coupling 32mm x 1" £9.28 50%
You Pay:  £4.64
493516 RIIFO MLCP F18 Male Coupling 32mm x 1 1/4" £10.84 50%
You Pay:  £5.42
493517 RIIFO MLCP F18 Male Coupling 40mm x 1" £17.68 50%
You Pay:  £8.84
493518 RIIFO MLCP F18 Male Coupling 40mm x 1 1/4" £19.20 50%
You Pay:  £9.60
493519 RIIFO MLCP F18 Male Coupling 40mm x 1 1/2" £22.52 50%
You Pay:  £11.26
493520 RIIFO MLCP F18 Male Coupling 50mm x 1 1/2" £24.80 50%
You Pay:  £12.40
493521 RIIFO MLCP F18 Male Coupling 50mm x 2" £32.96 50%
You Pay:  £16.48
493522 RIIFO MLCP F18 Male Coupling 63mm x 1 1/2" £38.76 50%
You Pay:  £19.38
493523 RIIFO MLCP F18 Male Coupling 63mm x 2" £45.08 50%
You Pay:  £22.54
493524 RIIFO MLCP F18 Male Coupling 75mm x 2 1/2" £66.48 50%
You Pay:  £33.24