Wholesale PPR Female Threaded Coupling
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PPR Female Threaded Coupling
  • PPR Female Threaded Coupling

PPR Female Threaded Coupling

PPR Female Threaded Coupling known as a PPR female adaptor or socket, has a BSP or NPT standard female thread on the one end to connect a metal threaded pipe, the other end is smooth and used to connect with unthread same-size pipes using a PPR welding machine, which is manufactured according to German DIN standards with sizes ranging from 20mm up to 160mm. The outstanding temperature rating of up to 70 C and pressure rating of up to 25 Bar make the PP-R system the ideal solution for a variety of applications, PPR female threaded coupling is made of non-toxic Polypropylene Random Copolymer and high-quality nickel plated brass inserts, has the advantage of health, long lifetime, rust resistance, heavyweight brass inserts and easy construction, being produced on Germany production line and inspected by CNAS proved national laboratory, PN2.5 Mpa design pressure for hot and cold water supply and heating systems, OEM service and customized colour are available.
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Item Name PPR female threaded coupling
Size 20-160mm
Pressure Pn 2.5Mpa
Material Polypropylene random, PPR beta
Inserts Brass
Color Green, gray, white, purple
Connection BSP, NPT
Standard DIN8077, DIN8078 ,ISO15874
Item name Product Code Size (mm) Packing (pc/ctn) Vol per Ctn (cbm) Weight (kg/pc)
PPR coupling female

RFN20 20x1/2" 280 0.0233 0.049
RFN20-1 20x3/4" 200 0.0233 0.072
RFN25 25x1/2" 280 0.0233 0.063
RFN25-1 25x3/4" 220 0.0233 0.073
RFN32 32x1/2" 240 0.0233 0.063
RFN32-1 32x3/4" 160 0.0233 0.077
RFN32-2 32x1" 80 0.0233 0.147
RFN40 40x1-1/4" 56 0.0233 0.267
RFN50 50x1-1/2" 36 0.0233 0.332
RFN63 63x2" 24 0.0233 0.507
RFN75 75x2-1/2" 16 0.0233 0.68
RFN90 90x3" 10 0.0233 1.1
RFN110 110x4" 6 0.0233 1.28
About Us
Shanghai Zhongsu Pipe Co., Ltd.

Shanghai Zhongsu Pipe Co.,Ltd established in 2004 with 1.01 billion registration capital, situated in Jinshan district of shanghai china, occupied 70000 square meters. ZHSU specialized in producing PPR pipe, antibacterial PPR pipe, anti UV PPR pipe, PP-RCT pipe, PE-RT pipe, HDPE pipe and fittings with various materials, adopted high technology production line to improve productivity and provide customer with fast delivery time. OEM PPR Female Threaded Coupling Manufacturers and Wholesale PPR Female Threaded Coupling Factory in China. In order to cooperate with national rural drinking water safety project, ZHSU adopted large diameter facility for PE production, our biggest PE pipe diameter reached DN1200mm at present, ZHSU has become one of the manufacturers in china who can produce such large diameter PE pipe.

We adopted German brand Battenfeld-cincinnati production lines for plastic pipes to organize production in strictly accordance with international standards, the procedure from raw material purchasing to finished product delivery is fully under monitoring, passed ISO9001, ISO14001 and OHSAS18001 certification because of perfect management. Wholesale PPR Female Threaded Coupling. Besides we were nominated as ”Shanghai famous brand products, Shanghai high-tech enterprises and Shanghai famous trademarks”.

Certificate Of Honor
  • ISO14001
  • ISO9001
  • ISO45001
  • CNAS Accredited Laboratory Certificate
  • CE-Certificate
  • Classification Society Factory Accreditation Certificate
  • 2022CEC Certificate - Water Supply Pipe
  • 2022CEC Certificate - Gas Pipe
  • 2021 Measurement Management System Certificate
  • TSG Special Equipment Production Licence New Certificate
  • CNNC Qualified Supplier Certificate
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Product Knowledge

Is there a specific type of thread sealant or tape recommended for use with PPR Female Threaded Couplings?
When it comes to using thread sealant or tape with PPR Female Threaded Couplings, it's essential to choose materials compatible with PPR and suitable for plumbing applications. Here are some considerations and recommendations:
PTFE (Polytetrafluoroethylene) Tape:
PTFE tape, commonly known as Teflon tape, is a popular choice for sealing threaded connections in PPR systems. It is chemically inert, resistant to most chemicals, and can handle a wide range of temperatures.
When applying PTFE tape, it is crucial to wrap it in the direction of the threads to prevent unraveling during assembly. This tape provides an effective seal to prevent leaks in threaded connections.
Pipe Dope or Thread Sealant Compound:
Pipe dope or thread sealant compounds are available in various formulations, and many are suitable for PPR applications. Look for sealants explicitly labeled as compatible with plastic pipes.
Water-based or non-solvent-based sealants are often recommended for plastic pipes like PPR to avoid potential chemical reactions that could compromise the material.
Compatibility with PPR Material:
Ensure that the selected thread sealant or tape is explicitly labeled as compatible with PPR material. Compatibility is essential to prevent any adverse reactions or degradation of the PPR material over time.
Non-Hardening Sealants:
Opt for non-hardening thread sealants that remain flexible after application. This flexibility allows for ease of disassembly during maintenance or repairs without damaging the threads.
Avoid Excessive Application:
Apply thread sealant or tape judiciously. Excessive application can lead to difficulties during assembly and may result in over-tightening, potentially damaging the threads.
Regular Inspection and Maintenance:
Periodically inspect threaded connections for any signs of leaks or deterioration. If maintenance is required, use the recommended sealant or tape during reassembly.
Shanghai Zhongsu Pipe Co., Ltd.
Shanghai Zhongsu Pipe Co., Ltd.