Inner-grooved copper coil tube

Introduction

The product adopts the advanced continuous casting and rolling technology to be made of. It has high precision, high heat dispersion, high clean, light weight. Its internal surface is 65%-100% bigger than smooth copper tube. Traditional coefficient is 1.8-2.0 time higher than smooth copper tube. It has a better prospect in the energy saving application. It is mainly used in household air conditioner, central air conditioning units, radiator pipe road of refrigerator units.
Qixing Welding started in the 1980’s, we are the member of China Welding Association and Henan Welding Professional Committee Syndic Unit. Our company approved by ISO9001:2008 and ISO4001:2004, and all of the products meet SGS and ROHS directive requirements. We take more than 60-70% marketing shares in domestic, including the international famous companies, such as Midea Group and Gree Electric Appliances, Danfoss, Panasonic, LG, Samsung, etc.

Technical Index

NO	Specification	O.D mm	I.D mm	TW mm	TH mm	TWF mm	Addendum angle α	Helix angle β/	Thread count n/pc
1	ɸ7.00x0.27+0.15-53-18	7.00	6.16	0.27	0.15	0.42	53	18	60
2	ɸ7.00x0.25+0.18-40-18	7.00	6.14	0.25	0.18	0.43	40	18	50
3	ɸ7.00x0.25+0.22-22-16	7.00	6.06	0.25	0.22	0.47	22	16	54
4	ɸ9.52x0.28+0.15-53-18	9.52	8.66	0.28	0.15	0.43	53	18	60
5	ɸ9.52x0.30+0.20-53-18	9.52	8.52	0.30	0.20	0.50	53	18	60
6	ɸ9.52x0.27+0.16-30-18	9.52	8.66	0.27	0.16	0.43	30	18	70
PS: I.D computing method： d = D—2 X TWF Standard ：GB/T 20928 - 2007

Note

Example：ɸ7.00(O.D) x 0.27(TW)+ 0.15(TH)-53(tooth addendum)-18(spiral height) Other specifications can be customized as requirements. Please specify the requirements about coil technological features, specifications, type and material status when you have inquiry to us.