Unaflex Matchless Bellows Expansion Joints

Matchless
Bellows E J

Universal Tied EJ

Externally
Pressurized
Bellows
Expansion
Joints

Series 5000
BPC Pump
Connectors

Matchless
Non Standard
Dual Unit

Pressure
Balanced Unit

Liners and
Covers

Tube Flex
Engine Exhaust
Expansion Joint

U-100
Expansion Joints

High Pressure
Expansion
Compensators

Inter-flex
Interlocked
Flexible Metal
Tubing

Standard
Warranty

Florida
3901 NE 12th Avenue,
Pompano Beach FL 33064
In FL 954-943-5002 Fax: 954-946-3583

ISO 9001: 2000 CERTIFIED

1-800-327-1286
E-mail: sales@unaflex.com

South Carolina
1715 Hwy 29 S. / P.O. BOX 1229
Anderson, South Carolina 29622
Phone. 864-222-1710 Fax: 864-222-1306

ISO 9001: 2000 Certification under way

Metal Expansion Joints

Matchless Bellows Expansion Joints, by Unaflex®

Short Style Specification Chart

SLP - Short Low Pressure
SMP - Short Medium Pressure
SHP - Short High Pressure
DS - Duct Short

			Style 44 & 66		Style 22		Axial		Lateral
Size (In.)	Series	PSI	O.A.L.	Weight	O.A.L.	Weight	Force (lbs./in.)	Move- ment (in.)	Force (lbs./in.)	Move- ment (in.)
2	SLP SMP SHP	50 150 300	6	8 8 8.2	6	1 1.1 1.3	180 180 600	0.8	305 345 1050	0.1
2-1/2	SLP SMP SHP	50 150 300	6	10.5 10.5 10.7	7	1.8 1.9 2	140 460 840	0.8	500 1506 2525	0.1
3	SLP SMP SHP	50 150 300	6	13.5 13.7 14	9	2.6 2.7 2.9	280 500 1275	0.8	866 944 2610	0.1
3-1/2	SLP SMP SHP	50 150 300	6	14.2 14.5 15	9	2.8 3 3.3	325 726 1396	0.8	1075 1400 3152	0.1
4	SLP SMP SHP	50 150 300	7	15.7 16 16.2	9	3.5 3.8 4	550 699 1135	0.8	1500 1550 3480	0.1
5	SLP SMP SHP	50 150 300	8	21 21.7 22.2	10	6 6.8 7.3	597 775 1500	1.3	2400 2400 7800	0.1
6	SLP SMP SHP	50 150 300	8	22.2 25.2 27	10	8.5 9.5 10	600 978 2000	1.3	2200 2700 7900	0.2 0.1 0.1
8	SLP SMP SHP	50 150 300	8	48.5 53.7 56.7	10	14.5 16 21	625 1060 2900	1.6	2608 6026 8200	0.2 0.1 0.1
10	SLP SMP SHP	50 150 300	8	53.7 58.5 63	10	20.5 22 26.8	645 1712 5065	1.6	3040 6275 11375	0.2 0.1 0.1
12	SLP SMP SHP	50 150 300	9	87 89 92	10	23 26.3 28.5	615 1428 6310	1.6	3494 6376 18830	0.1
14	SLP SMP SHP	50 150 300	9	103 107 110	12	26 27.8 30	590 1500 7302	1.6	5899 9970 21650	0.1
16	SLP SMP SHP	50 150 300	9	138 143 147	12	29 33 36	604 2100 6100	1.6	9334 14890 38115	0.1
18	SLP SMP SHP	50 150 300	10	156 161 166	12	33 39 43	615 2800 6080	1.8	11350 21455 61400	0.1
20	SLP SMP SHP	50 150 300	10	162 167 172	14	38 41 49	620 3062 6143	1.8	13600 24010 68350	0.1
22	SLP SMP SHP	50 150 300	10	205 210 214	14	40 43 47	680 3100 5000	1.8	17115 30950 71600	0.1
24	SLP SMP SHP	50 150 300	11	222 225 230	14	46 49 50	815 3400 9500	1.8	21300 42750 102700	0.1
30 36 40	DS	50	11	377 497 602	14	56 67 72	960 1100 1490	1.8	175000 248000 380000	0.2
42 46 48	DS	50	11	641 750 810	14	84 98 170	1680 1742 3600	2.0	410000 470000 500000	0.2
50 52 54	DS	25	11	900 1008 1061	14	179 210 218	2500 3215 3605	2.0	174900 318000 604000	0.2
60 66 72	DS	25	11	1347 1591 1799	14	242 283 309	4200 4400 4750	2.0	780000 1300500 2800300	0.1
84 96 108	DS	15	11	2137 3916 4200	14	395 460 491	5478 6300 7210	2.0	4610000 12100000 18400000	0.1
126 132 144	DS	15	11	4400 4700 5200	14	565 600 660	8005 8715 9430	2.0	19500000 21000500 25000100	0.08

Design Movements based on 80% axial compression, 20% extension and total lateral offset.

Unaflex Matchless Metal Bellows Expansion Joints Data

Metal expansion joints are primarily used to absorb movements in piping caused by thermal changes. Our designs incorporate the latest technology to produce a premium product.
Unaflex "Matchless" expansion joint bellows are produced from fully annealed stainless steel sheet rolled into a tube and seam welded.
Service: Units are capable of handling Vacuum to 300 PSI.
Standard bellows: 321 stainless steel. Other alloys are available to withstand your toughest applications.
Standard fittings: welding nipples, fixed and floating flanges.
Standard sizes: 2" through 144".

Pressure Thrust

When a bellows is pressurized, it reacts causing a load equal to its effective area X working pressure along its longitudinal axis. These loads must be considered when designing the system arrangement and appropriate anchors.

	Eff. area		Eff. area		Eff area
Size	Sq.In.	Size	Sq.In.	Size	Sq.In.
2	6.3	18	290	52	2290
2-1/2	9.6	20	354	54	2460
3	12.0	22	426	60	3025
4	20	24	500	66	3635
5	30.0	30	775	72	4300
6	43.0	36	1090	84	5800
8	72.0	40	1350	96	7550
10	110	42	1470	108	9510
12	150	46	1775	126	13200
14	180	48	1940	132	14110
16	234	50	2125	144	16750

Temperature:

Elevated temperatures reduce both rated movement and pressure capabilities.
To compensate multiply both rated movement and rated pressure by the temperature compensating factor shown in the chart below.

Temperature °F	Temperature Compensating Factor	Temperature °F	Temperature Compensating Factor
Room Temp. 200 300 400 500	1.00 .86 .80 .78 .77	600 700 800 901 1000	.74 .70 .66 .62 .60

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South Carolina
1715 Hwy 29 S./ P.O. Box 1229
Anderson S.C. 29622

1-800-327-1286
E-mail: sales@unaflex.com
Fax: 864-222-1306

Florida
3901 NE 12 Ave, Pompano Bch FL 33064
In FL 954-943-5002 FAX: 954-940-3583