SF-480 Universal Expansion Joint / Isolation Layer Type Expansion Joint ISOLATION LAYER TYPE EXPANSION JOINT

Product Name : SF-480 Universal Expansion Joint / Isolation Layer Type Expansion Joint

The expansion joint consists of a single bellow and two pairs of hinges which are attached by flanges as ends, and two sets of hinged pins or pivots as the rotating axis absorb angular movement in any plane, in which each set of pins is connected to each other with a central balanced (or called gimbals) ring, while piping expansion and contraction action.
This gimbals structure is designed to adopt the pipe distortion at the bottom segment of a vertical pipe due to excessive offset expansion or the earthquake. Also, it is very suitable to eliminate bending stress or angular movement from external loading or the earthquake, considering the security in a vertical piping system.
These gimbals type expansion joints are often used in sets of two or three in order to absorb piping movement in one or more directions. A gimbals joint protects complex lateral movements to be absorbed with minimal anchor forces in any plane of a piping system.

FLANGE TYPE : JIS、ANSI、BS、DIN

Item	Parts	Material	Optional Material
項次	構件	材質	可選用材質
1	伸縮囊 (Bellows)	SUS-304	SUS-316
2	法蘭 (Flange)	SS-400	SUS-304 / SUS-316
3	插銷(Pin)	SS-400	SUS-304 / SUS-316
4	鉸鍊臂(Hinged Arm)	SS-400	SUS-304 / SUS-316
5	平衡環(Gimbals Ring)	SS-400	SUS-304 / SUS-316
6	端管 (Tube End)	SS-400	SUS-304 / SUS-316

SF-480 性能規格表 Specification

(口徑16"以上規格另行提供，下述工作壓力以常溫25℃為基準)

Nominal Diameter		Total Length	Bellows					Angle	Working Pressure
口徑 (A)		總長度 (L)	內徑 (I.D)	外徑 (O.D)	有效長度 (Lb)	有效面積 (Ae)	彈性係數 (ƒw)	角度變位 (θ)	工作壓力 (P)
mm	Ins	mm	mm	mm	mm	c㎡	Kg/c㎡	°	PSI	Kg/c㎡
50	2	300	56	74	100	34	24.8	20	300	20
65	2-1/2	300	70	90	130	51.3	14.4	19	300	20
80	3	300	83	104	130	69.1	18.2	19	300	20
100	4	300	106	130	130	112.2	29.9	15	300	20
125	5	350	133	161	130	174.4	31.7	13	300	20
150	6	350	158	187	130	237.8	33.3	13	300	20
200	8	400	216	247	180	432.3	109	12	300	20
250	10	500	273	309	180	667.8	150.5	12	300	20
300	12	550	324	359	180	921.9	179.6	11	300	20
350	14	550	355	393	180	1108	181.5	10	300	20

SF-480 Universal Expansion Joint / Isolation Layer Type Expansion Joint