{"id":1332,"date":"2026-09-20T20:36:31","date_gmt":"2026-09-20T12:36:31","guid":{"rendered":"https:\/\/zhujikaiyi.com\/?page_id=1332"},"modified":"2026-10-04T09:38:02","modified_gmt":"2026-10-04T01:38:02","slug":"pe-rt-ii-butt-fusion-reducing-coupler","status":"publish","type":"page","link":"https:\/\/zhujikaiyi.com\/ru_RU\/plastic-pipe-fittings\/pe-rt-ii-butt-fusion-reducing-coupler\/","title":{"rendered":"PE-RT II Butt Fusion Reducing Coupler"},"content":{"rendered":"
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PE-RT II FITTINGS<\/strong><\/h2>\n

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

Reducing Coupler<\/strong><\/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<\/a><\/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 Butt Fusion Reducing Coupler<\/h1>\n

PE-RT II butt fusion reducing coupler is designed to connect PE-RT II pipes of different outside diameters in a straight pipeline. The available model range covers reducing combinations from 75 \u00d7 50 mm through 315 \u00d7 280 mm.<\/p>\n\n\n

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

Jointing:<\/strong> Butt fusion welding<\/p>\n

Connection Type:<\/strong> Reducing straight connection<\/p>\n

Model Range:<\/strong> 75 \u00d7 50 mm \u2013 315 \u00d7 280 mm<\/p>\n

Available Models:<\/strong> 43<\/p>\n

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

All Models & Specifications<\/h2>\n

Available PE-RT II butt fusion reducing coupler models are listed below. Please provide the required large-end size, small-end size and quantity when requesting a quotation.<\/p>\n

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Size (mm)<\/th><\/tr><\/thead>
75 \u00d7 50<\/td><\/tr>\n
75 \u00d7 63<\/td><\/tr>\n
90 \u00d7 50<\/td><\/tr>\n
90 \u00d7 63<\/td><\/tr>\n
90 \u00d7 75<\/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
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
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 160<\/td><\/tr>\n
200 \u00d7 180<\/td><\/tr>\n
225 \u00d7 90<\/td><\/tr>\n
225 \u00d7 110<\/td><\/tr>\n
225 \u00d7 160<\/td><\/tr>\n
225 \u00d7 200<\/td><\/tr>\n
250 \u00d7 110<\/td><\/tr>\n
250 \u00d7 160<\/td><\/tr>\n
250 \u00d7 200<\/td><\/tr>\n
250 \u00d7 225<\/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<\/tbody><\/table><\/figure>\n\n

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

PE-RT II butt fusion reducing coupler is used to make a straight transition between two PE-RT II pipes with different outside diameters. It allows the pipeline size to be reduced while maintaining a welded all-plastic connection.<\/p>\n

This fitting is typically selected where the main pipeline changes diameter in heating distribution, hot-water circulation, HVAC hydronic or other compatible PE-RT II systems. Both ends are joined by butt fusion, so correct pipe alignment, end preparation and matching of the required diameters are important during installation.<\/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 advantages of a weldable plastic piping material.<\/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 pipeline system. The material is also valued for corrosion resistance, resistance to internal scaling, relatively low weight, smooth internal surfaces and good installation flexibility.<\/p>\n\n

Operating Temperature<\/h3>\n

PE-RT II is intended for hot- and cold-water and heating applications where elevated-temperature performance is required. The exact allowable temperature depends on the pipe and fitting design, SDR or wall thickness, operating pressure and the specified 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. The final temperature and pressure limits should always be confirmed against the actual pipe specification and project design conditions.<\/p>\n\n

Typical Applications<\/h3>\n