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Coupler Reducing PP Comp, HDPE 110x90mm OD-P
Coupler Reducing PP Comp, HDPE 110x90mm OD-P (Product Code: SLE/WDF/17) is a straight polypropylene reducing coupler used to join a 110 mm HDPE pipe to a 90 mm HDPE pipe in water supply mains. Both ends are female compression joints, one for each outside diameter, and the coupler is rated for 10 bar at 20°C, letting network installers step the pipe size down without welding. It is supplied by Jain Scientific Equipments Pvt Ltd (ScienceLab), Ambala, India.
Specifications
| Parameter | Detail |
|---|---|
| Fitting type | Straight reducing coupling, female x female, compression |
| Pipe outside diameters | 110 mm x 90 mm |
| For use with | HDPE pipes |
| Material | Reinforced, high-impact-strength polypropylene, UV stabilised |
| Pressure rating | 10 bar at 20°C |
| Temperature range | 0 to 50°C |
| Product code | SLE/WDF/17 |
| Supplied by | Jain Scientific Equipments Pvt Ltd (ScienceLab), Ambala, India |
What Is the 110 x 90 mm HDPE Reducing Coupler Used For?
Water networks are commonly laid in stepped sizes: the pipe nearest the source carries the whole flow, and diameters reduce further out as fewer connections remain. The Coupler Reducing PP Comp, HDPE 110x90mm OD-P marks that step between 110 mm and 90 mm HDPE pipe. It is equally useful on repair and extension jobs, where a new 110 mm line has to meet an existing 90 mm pipe.
Install the reducer in line with both pipes, each cut square, chamfered and pushed fully home before its compression nut is tightened. Water moves faster through the smaller pipe for the same flow, so place the joint in a straight, well-supported section of trench and bed it evenly. Record the location on the as-built drawing so maintenance teams know where the size changes.
What to Specify When Ordering
- Both pipe sizes: 110 mm and 90 mm outside diameter HDPE.
- The number of size changes on the network, one coupler for each.
- Pressure and temperature conditions, which should stay within 10 bar at 20°C and 0 to 50°C.
Supplier
Jain Scientific Equipments Private Limited, trading as ScienceLab in Ambala, Haryana, supplies this reducing coupler as a sourced item within its water, sanitation and hygiene range. For institutions procuring through laboratory equipment tenders in India or other vendor-registered channels, the supplying company's details are CIN U29309HR2020PTC087597 and GSTIN 06AAECJ8618A1ZT. The company profile gives more background.
Related Water, Sanitation & Hygiene Supplies
Fittings used alongside a reducer on HDPE and PVC networks:
- T, PP comp, HDPE 110 x 110 x 110mm OD-P — a full-size branch on the 110 mm main before the reduction.
- Clamp Saddle PP, HDPE 110mm x fthd ½" O/ND-P — for service tappings along the 110 mm section.
- Coupler PP Comp, HDPE 110mmxflng 4"O/ND-P — connects the 110 mm line to flanged valves or pumps.
- Reducing Coupler PVC skt scj 110x90mm-P — the solvent-cement equivalent for uPVC pipe networks.
The full selection is in the Water, Sanitation & Hygiene Supplies category.
Frequently Asked Questions
Which pipe sizes does the Coupler Reducing PP Comp, HDPE 110x90mm OD-P join?
The Coupler Reducing PP Comp, HDPE 110x90mm OD-P joins HDPE pipe of 110 mm outside diameter to HDPE pipe of 90 mm outside diameter. Both ends are female compression joints, so nothing needs to be threaded or welded.
What is the pressure rating of the reducing coupler?
The Coupler Reducing PP Comp, HDPE 110x90mm OD-P is rated for 10 bar at 20°C, with a suitable temperature range of 0 to 50°C. Design working and test pressures to stay within this rating, particularly where the water temperature is high.
Can the coupler join HDPE to PVC pipe?
The Coupler Reducing PP Comp, HDPE 110x90mm OD-P is specified for HDPE pipes. For uPVC networks, see the solvent-cement reducing coupler in the same sizes in our WASH range, and ask us about transitions between the two materials.
Can the reducing coupler be dismantled later?
Compression joints like those on the Coupler Reducing PP Comp, HDPE 110x90mm OD-P can generally be opened by loosening the nuts, which helps during repairs or layout changes. Inspect the pipe ends and sealing surfaces carefully before reassembly.
Who supplies the Coupler Reducing PP Comp, HDPE 110x90mm OD-P?
Jain Scientific Equipments Pvt Ltd (ScienceLab) of Ambala, Haryana, supplies the Coupler Reducing PP Comp, HDPE 110x90mm OD-P. The company sources it for water-network, institutional and project buyers in India and international markets, quoting it with related HDPE fittings.
What should I send to get a quotation?
Send the quantity of the Coupler Reducing PP Comp, HDPE 110x90mm OD-P, the delivery location and any other HDPE or GI fittings you need through the contact page. A consolidated quotation is then prepared for the complete list.
Request a Quote
Enquire about the Coupler Reducing PP Comp, HDPE 110x90mm OD-P on the contact page, or place it in the enquiry cart with the tees, saddles and adaptors on your pipe schedule. Include the number of size changes in your network so quantities match the layout.
Last updated: 24 September 2026
