High Performance Tube - Integrally finned tubing

Products

Type 4 36 FPI Fine-Fin

Type 4 36 FPI Fine-Fin ^Ž *Materials: Titanium; Zirconium.*	36	fins per inch
	1417	fins per meter
	.026	(Inches) average fin height
	.660	(mm) average fin height
	.012	(Inches) average fin thickness
	.305	(mm) average fin thickness

Part Number	Plain Section Average Diameter	Plain Section Average Wall	Wall Under Fin Average	Wall Under Fin Minimum	Nominal Root Diameter	Fin Section I.D.	Outside Area Ao	Inside Area Ai	Area Ratio Ao/Ai	I.D. Cross Section Area
	(Inches)	(Inches)	(Inches)	(Inches)	(Inches)	(Inches)	(Ft ² /Ft)	(Ft ² /Ft)		(Inches ² )
	(mm)	(mm)	(mm)	(mm)	(mm)	(mm)	(m ² /m)	(m ² /m)		(cm ² )
364028	.625	.049	.028	.025	.573	.517	.411	.135	3.044	.210
	15.875	1.245	.711	.635	14.554	13.132	.125	.041		1.354
364035	.625	.058	.035	.031	.573	.503	.411	.132	3.114	.199
	15.875	1.473	.889	.787	14.554	12.776	.125	.040		1.282
364042	.625	.065	.042	.037	.573	.489	.411	.128	3.211	.188
	15.875	1.651	1.067	.940	14.554	12.421	.125	.039		1.212
364049	.625	.072	.049	.044	.573	.475	.411	.124	3.315	.177
	15.875	1.829	1.245	1.118	14.554	12.065	.125	.038		1.143
364065	.625	.083	.065	.058	.573	.443	.411	.116	3.543	.154
	15.875	2.108	1.651	1.473	14.554	11.252	.125	.035		.994

365028	.750	.049	.028	.025	.698	.642	.500	.168	2.976	.324
	19.050	1.245	.711	.635	17.729	16.307	.152	.051		2.088
365035	.750	.058	.035	.031	.698	.628	.500	.164	3.049	.310
	19.050	1.473	.889	.787	17.729	15.951	.152	.050		1.998
365042	.750	.065	.042	.037	.698	.614	.500	.161	3.106	.296
	19.050	1.651	1.067	.940	17.729	15.596	.152	.049		1.910
365049	.750	.072	.049	.044	.698	.600	.500	.157	3.185	.283
	19.050	1.829	1.245	1.118	17.729	15.240	.152	.048		1.824
365065	.750	.083	.065	.058	.698	.568	.500	.149	3.356	.253
	19.050	2.108	1.651	1.473	17.729	14.427	.152	.045		1.635
365083	.750	.109	.083	.074	.698	.532	.500	.139	3.597	.222
	19.050	2.769	2.108	1.880	17.729	13.513	.152	.042		1.434

366028	.875	.049	.028	.025	.823	.767	.587	.201	2.920	.462
	22.225	1.245	.711	.635	20.904	19.482	.179	.061		2.981
366035	.875	.058	.035	.031	.823	.753	.587	.197	2.980	.445
	22.225	1.473	.889	.787	20.904	19.126	.179	.060		2.873
366042	.875	.065	.042	.037	.823	.739	.587	.193	3.041	.429
	22.225	1.651	1.067	.940	20.904	18.771	.179	.059		2.767
366049	.875	.072	.049	.044	.823	.725	.587	.190	3.089	.413
	22.225	1.829	1.245	1.118	20.904	18.415	.179	.058		2.663
366065	.875	.083	.065	.058	.823	.693	.587	.181	3.243	.377
	22.225	2.108	1.651	1.473	20.904	17.602	.179	.055		2.433
366083	.875	.109	.083	.074	.823	.657	.587	.172	3.413	.339
	22.225	2.769	2.108	1.880	20.904	16.688	.179	.052		2.187

367035	1.000	.058	.035	.031	.948	.878	.671	.230	2.917	.605
	25.400	1.473	.889	.787	24.079	22.301	.205	.070		3.906
367042	1.000	.065	.042	.037	.948	.864	.671	.226	2.969	.586
	25.400	1.651	1.067	.940	24.079	21.946	.205	.069		3.783
367049	1.000	.072	.049	.044	.948	.850	.671	.223	3.009	.567
	25.400	1.829	1.245	1.118	24.079	21.590	.205	.068		3.661
367065	1.000	.083	.065	.058	.948	.818	.671	.214	3.136	.526
	25.400	2.108	1.651	1.473	24.079	20.777	.205	.065		3.391
367083	1.000	.109	.083	.074	.948	.782	.671	.205	3.273	.480
	25.400	2.769	2.108	1.880	24.079	19.863	.205	.062		3.099


D - Outside Diameter of Plain End	W - Wall Thickness of Plain End
D _i - Inside Diameter of Plain End	W _f - Wall Thickness Under Fin
d _r - Root Diameter	F _h - Height of Fin
d _o - Diameter Over Fins	F _m < /b> - Mean Fin Thickness
d _i - Inside Diameter of Fin Section
DEFINITION OF HPT PART NUMBER Example: 365028
36: fins per inch 5: root diameter (reference) in eights of a n inch 028: wall thickness under fin in thousands of an inch