{"id":1431,"date":"2026-09-21T13:32:54","date_gmt":"2026-09-21T05:32:54","guid":{"rendered":"https:\/\/zhujikaiyi.com\/pe-rt-ii-electrofusion-reducing-coupler\/"},"modified":"2026-10-04T09:37:11","modified_gmt":"2026-10-04T01:37:11","slug":"pe-rt-ii-electrofusion-reducing-coupler","status":"publish","type":"page","link":"https:\/\/zhujikaiyi.com\/ru_RU\/plastic-pipe-fittings\/pe-rt-ii-electrofusion-reducing-coupler\/","title":{"rendered":"PE-RT II Electrofusion Reducing Coupler"},"content":{"rendered":"
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PE-RT II FITTINGS<\/strong><\/h2>\n

BUTT FUSION FITTINGS<\/strong><\/p>\n

Reducing Coupler<\/a><\/p>\n

90\u00b0 Elbow<\/a><\/p>\n

45\u00b0 Elbow<\/a><\/p>\n

Equal Tee<\/a><\/p>\n

Reducing Tee<\/a><\/p>\n

Stub End<\/a><\/p>\n

End Cap<\/a><\/p>\n

ELECTROFUSION FITTINGS<\/strong><\/p>\n

Electrofusion Coupler<\/a><\/p>\n

Electrofusion Reducer<\/strong><\/p>\n

Electrofusion 90\u00b0 Elbow<\/a><\/p>\n

Electrofusion 45\u00b0 Elbow<\/a><\/p>\n

Electrofusion Equal Tee<\/a><\/p>\n

Electrofusion Reducing Tee<\/a><\/p>\n

Electrofusion Stub End<\/a><\/p>\n

Electrofusion End Cap<\/a><\/p>\n

Electrofusion Male \/ Female Threaded Tee<\/a><\/p>\n<\/div>\n\n

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PE-RT II Electrofusion Reducing Coupler<\/h1>\n

PE-RT II electrofusion reducing coupler is designed to connect two compatible PE-RT II pipes with different outside diameters through electrofusion welding. It provides a straight size transition while maintaining a welded PE-RT II pipeline connection.<\/p>\n\n

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\"PE-RT<\/figure><\/div>\n
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Material:<\/strong> PE-RT II<\/p>\n

Jointing:<\/strong> Electrofusion welding<\/p>\n

Type:<\/strong> Electrofusion Reducing Coupler<\/p>\n

Connection:<\/strong> Straight reducing connection<\/p>\n

Size Range:<\/strong> 25 \u00d7 20 mm \u2013 630 \u00d7 500 mm<\/p>\n

Pressure Classes:<\/strong> SDR11 \/ PN16, SDR17 \/ PN10<\/p>\n

Available Configurations:<\/strong> 106<\/p>\n

Request a Quote<\/a><\/div><\/div>\n<\/div>\n<\/div>\n\n

All Models & Specifications<\/h2>\n

Available PE-RT II electrofusion reducing coupler models are grouped by SDR \/ PN for faster size selection.<\/p>\n

SDR11 \/ PN16<\/h3>\n
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Size (mm)<\/th><\/tr><\/thead>
25 \u00d7 20<\/td><\/tr>\n
32 \u00d7 20<\/td><\/tr>\n
32 \u00d7 25<\/td><\/tr>\n
40 \u00d7 20<\/td><\/tr>\n
40 \u00d7 25<\/td><\/tr>\n
40 \u00d7 32<\/td><\/tr>\n
50 \u00d7 20<\/td><\/tr>\n
50 \u00d7 25<\/td><\/tr>\n
50 \u00d7 32<\/td><\/tr>\n
50 \u00d7 40<\/td><\/tr>\n
63 \u00d7 32<\/td><\/tr>\n
63 \u00d7 40<\/td><\/tr>\n
63 \u00d7 50<\/td><\/tr>\n
75 \u00d7 32<\/td><\/tr>\n
75 \u00d7 40<\/td><\/tr>\n
75 \u00d7 50<\/td><\/tr>\n
75 \u00d7 63<\/td><\/tr>\n
90 \u00d7 40<\/td><\/tr>\n
90 \u00d7 50<\/td><\/tr>\n
90 \u00d7 63<\/td><\/tr>\n
90 \u00d7 75<\/td><\/tr>\n
110 \u00d7 40<\/td><\/tr>\n
110 \u00d7 50<\/td><\/tr>\n
110 \u00d7 63<\/td><\/tr>\n
110 \u00d7 75<\/td><\/tr>\n
110 \u00d7 90<\/td><\/tr>\n
125 \u00d7 50<\/td><\/tr>\n
125 \u00d7 63<\/td><\/tr>\n
125 \u00d7 75<\/td><\/tr>\n
125 \u00d7 90<\/td><\/tr>\n
125 \u00d7 110<\/td><\/tr>\n
140 \u00d7 50<\/td><\/tr>\n
140 \u00d7 63<\/td><\/tr>\n
140 \u00d7 75<\/td><\/tr>\n
140 \u00d7 90<\/td><\/tr>\n
140 \u00d7 110<\/td><\/tr>\n
140 \u00d7 125<\/td><\/tr>\n
160 \u00d7 50<\/td><\/tr>\n
160 \u00d7 63<\/td><\/tr>\n
160 \u00d7 75<\/td><\/tr>\n
160 \u00d7 90<\/td><\/tr>\n
160 \u00d7 110<\/td><\/tr>\n
160 \u00d7 125<\/td><\/tr>\n
160 \u00d7 140<\/td><\/tr>\n
180 \u00d7 110<\/td><\/tr>\n
180 \u00d7 125<\/td><\/tr>\n
180 \u00d7 140<\/td><\/tr>\n
180 \u00d7 160<\/td><\/tr>\n
200 \u00d7 50<\/td><\/tr>\n
200 \u00d7 63<\/td><\/tr>\n
200 \u00d7 75<\/td><\/tr>\n
200 \u00d7 90<\/td><\/tr>\n
200 \u00d7 110<\/td><\/tr>\n
200 \u00d7 125<\/td><\/tr>\n
200 \u00d7 140<\/td><\/tr>\n
200 \u00d7 160<\/td><\/tr>\n
200 \u00d7 180<\/td><\/tr>\n
225 \u00d7 110<\/td><\/tr>\n
225 \u00d7 125<\/td><\/tr>\n
225 \u00d7 140<\/td><\/tr>\n
225 \u00d7 160<\/td><\/tr>\n
225 \u00d7 180<\/td><\/tr>\n
225 \u00d7 200<\/td><\/tr>\n
250 \u00d7 110<\/td><\/tr>\n
250 \u00d7 125<\/td><\/tr>\n
250 \u00d7 160<\/td><\/tr>\n
250 \u00d7 200<\/td><\/tr>\n
250 \u00d7 225<\/td><\/tr>\n
280 \u00d7 250<\/td><\/tr>\n
280 \u00d7 225<\/td><\/tr>\n
280 \u00d7 200<\/td><\/tr>\n
280 \u00d7 160<\/td><\/tr>\n
280 \u00d7 125<\/td><\/tr>\n
280 \u00d7 110<\/td><\/tr>\n
315 \u00d7 110<\/td><\/tr>\n
315 \u00d7 125<\/td><\/tr>\n
315 \u00d7 160<\/td><\/tr>\n
315 \u00d7 200<\/td><\/tr>\n
315 \u00d7 225<\/td><\/tr>\n
315 \u00d7 250<\/td><\/tr>\n
315 \u00d7 280<\/td><\/tr>\n
355 \u00d7 125<\/td><\/tr>\n
355 \u00d7 160<\/td><\/tr>\n
355 \u00d7 200<\/td><\/tr>\n
355 \u00d7 225<\/td><\/tr>\n
355 \u00d7 250<\/td><\/tr>\n
355 \u00d7 315<\/td><\/tr>\n
400 \u00d7 110<\/td><\/tr>\n
400 \u00d7 125<\/td><\/tr>\n
400 \u00d7 160<\/td><\/tr>\n
400 \u00d7 200<\/td><\/tr>\n
400 \u00d7 225<\/td><\/tr>\n
400 \u00d7 250<\/td><\/tr>\n
400 \u00d7 315<\/td><\/tr>\n
400 \u00d7 355<\/td><\/tr>\n
450 \u00d7 315<\/td><\/tr>\n
450 \u00d7 400<\/td><\/tr>\n
500 \u00d7 315<\/td><\/tr>\n
500 \u00d7 400<\/td><\/tr>\n
630 \u00d7 400<\/td><\/tr>\n
630 \u00d7 500<\/td><\/tr>\n<\/tbody><\/table><\/figure>\n

SDR17 \/ PN10<\/h3>\n
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Size (mm)<\/th><\/tr><\/thead>
355 \u00d7 200<\/td><\/tr>\n
355 \u00d7 250<\/td><\/tr>\n
355 \u00d7 315<\/td><\/tr>\n
400 \u00d7 250<\/td><\/tr>\n
400 \u00d7 315<\/td><\/tr>\n<\/tbody><\/table><\/figure>\n\n

About PE-RT II Electrofusion Reducing Coupler<\/h2>\n

PE-RT II electrofusion reducing coupler is used for straight-line connection between two different PE-RT II pipe diameters. Unlike an equal coupler, it allows the pipeline to change size while remaining on the same center line.<\/p>\n

The fitting contains integrated electrofusion heating elements. During installation, the prepared pipe ends are inserted into the two sides of the reducer, aligned correctly and welded with compatible electrofusion equipment. It is commonly used where a larger PE-RT II main needs to transition to a smaller line in heating, hot-water, HVAC hydronic or other compatible thermal-fluid systems.<\/p>\n\n

About PE-RT II Material<\/h2>\n

PE-RT II (Polyethylene of Raised Temperature Resistance Type II) is a thermoplastic polyethylene material developed for piping systems that must maintain mechanical strength at elevated temperatures. Compared with conventional polyethylene, PE-RT II offers improved long-term temperature resistance while retaining the benefits of a weldable plastic piping system.<\/p>\n

Because PE-RT II remains thermoplastic, compatible pipes and fittings can be joined by butt fusion or electrofusion to create a continuous all-plastic welded pipeline system. The material is also valued for corrosion resistance, resistance to internal scaling, relatively low weight, smooth internal surfaces and installation flexibility.<\/p>\n

Operating Temperature<\/h3>\n

PE-RT II is used in hot- and cold-water and heating applications where elevated-temperature performance is required. The exact allowable temperature depends on pipe and fitting design, SDR or wall thickness, operating pressure and application class. Many PE-RT II piping systems are designed for long-term service in approximately the 70\u201380\u00b0C range, while short-term or maximum design conditions can reach about 95\u00b0C. Final temperature and pressure limits should always be confirmed against the actual pipe specification and project design conditions.<\/p>\n

Typical Applications<\/h3>\n