UFBX

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UFBX Specifications

UFBX Standard Hose Fittings & Flanges

UFBX Hose Installation Guide

Application

Static installations – where the flexible is used to connect pipework out of alignment and remains in a static position.
Occasional flexing – when the hose is required to flex continuously, usually on
moving machinery.
Vibration – high frequency, low amplitude movement, e.g. on a compressor or pump.

Description

An ISO 10380 specification medium pressure hose.

• Specifically designed to meet the requirements of ISO 10380 flexibility class 1
• Most of the range can be supplied on drums for easy handling or where continual lengths are needed.
• Will convey all manner of liquids and gases.
• High physical strength
• Long life
• Good corrosion characteristics
• Suitable for elevated temperatures up to 600ºC or in cryogenic applications down to -200ºC
• Manufactured to BS 6501 Part 1, 2004 flexibility class type 1.

Construction

The hose are annually corrugated formed from butt welded rigid tube. Depending on the application, required working pressure and conditions of operation, a single or double layer of wire braid can be applied externally to the hose to restrain it, increasing its ability to withstand pressure, increasing hoop strength and protection from abrasion. The extent of braided, gauge and angle lay is calculated carefully to maximize performance.

MATERIALS

Tube: BS EN 10088 -2:2005 1.4541 (321S31) or 1.4404
(316S11)
Braid: BS EN 10088-3 :2005 1.4301 (304S31) or 1.4401
(316S11)

SHOCK PRESSURE

Pulsating, surge or shock pressures considerably affect hose longevity and if encountered, peak pressure must not exceed 50% of the maximum working pressure.

FLOW VELOCITY

High velocities should be avoided as they can lead to premature fatigue failure.

An interlock hose should be used as a liner if velocity exceeds:

Unbraided: 30m/s (gas); 15m/s (liquid)
Braided: 45m/s (gas); 22.5m/s (liquid)

When the hose is installed in a bend condition, these values should be reduced by 50% for a 90º bend, 25% for a 45º and so on, proportionally to the angle. With higher velocity, the next larger hose with liner should be used.

PRESSURE LOSS

To achieve the same pressure loss as in steel pipes, the diameter of the corrugated hose should be increased by 15%.

PRESSURE DERATING FACTORS

The pressure ratings given apply to hose with welded end connections at room temperatures. The following derating factors must be applied at higher temperatures.

Specifications

Nominal Bore	Hose Type	Hose O/D	Min Bend Radius		Maximum Pressure				Weight
			Static	Dynamic	Working		Test
mm / inc		mm	mm	mm	Bar	PSI	Bar	PSI	kg / m
	UFBX0	10	16	110	10	145	15	218	0.08
6 / ¼”	UFBX1	11.4	25		167	2422	250.5	3632	0.16
	UFBX2	12.8			220	3190	330	4785	0.24
	UFBX0	12	20	130	10	145	15	218	0.12
8 / 5/16”	UFBX1	13.4	32		136	1972	204	2958	0.22
	UFBX2	14.7			210	3045	315	4568	0.32
	UFBX0	14.9	22	150	5.5	80	8.25	120	0.16
10 / 3/8”	UFBX1	16.3	38		100	1450	150	2175	0.27
	UFBX2	17.6			178	2581	267	3872	0.38
	UFBX0	19.6	24	165	5.5	80	8.25	120	0.17
12 / ½”	UFBX1	21	45		74	1073	111	1610	0.36
	UFBX2	22.4			103	1494	154.5	2240	0.53
	UFBX0	22	28	195	5	73	7.5	109	0.28
15 / 5/8”	UFBX1	23.3	50		70	1015	105	1523	0.45
	UFBX2	24.6			125	1813	187.5	2719	0.62
	UFBX0	25.8	30	200	4.1	59	6.15	89	0.27
20 / ¾”	UFBX1	27.4	70		65	943	97.5	1414	0.52
	UFBX2	29			86	1247	129	1871	0.77
	UFBX0	33.7	44	200	4.1	59	6.15	89	0.32
25 / 1”	UFBX1	35.8	85		50	725	75	1088	0.7
	UFBX2	37.9			76	1102	114	1653	1.1
	UFBX0	41.1	55	250	3.4	49	5.1	74	0.4
32 / 1¼”	UFBX1	43.2	105		39	566	58.5	848	0.86
	UFBX2	45.3			57	827	85.5	1240	1.3
	UFBX0	47.9	70	250	2.4	35	3.6	52	0.67
40 / 1½”	UFBX1	50	125		35	508	52.5	761	1.2
	UFBX2	52.2			55	798	82.5	1196	1.7
	UFBX0	62.1	90	350	1	15	1.5	23	0.82
50 / 2”	UFBX1	64.2	160		30	435	45	653	1.5
	UFBX2	66.3			44	638	66	957	2.3
	UFBX0	76.5	110	410	1	14	1.5	23	1.9
65 / 2½”	UFBX1	78.6	200		26	377	39	720	2.8
	UFBX2	80.7			46	667	69	1000	3.7
	UFBX0	89.8	130	450	1	15	1.5	23	2.3
80 / 3”	UFBX1	91.9	230		22	320	33	280	3.4
	UFBX2	94.1			40	580	60	870	4.5