TAIYUAN AERO - INSTRUMENTS CO.,LTD

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★ Parameters of brass and Tin-bronze bellows

ID d (mm)	OD D (mm)	Distance of ipples ≈ t (mm)	Ripple thickness ≈ a (mm)	Recommended rim size	Wall thickness H 0 (mm)	Speciality parameter						Calculation value of effective area (cm 2 )
				D 1 ×L 1 &d 1 ×l 2 (mm×mm)		Single ripple Rigidity (N/mm)		Max displacement of single ripple (mm)		Max bearing force (Mpa)
				D 1 ×L 1 &d 1 ×l 2 (mm×mm)		H	S	H	S	H	S
8.0	12.0	1.4	0.8	8.3×2	0.10	93.53	90.65	0.16	0.20	0.96	1.14	0.79
9.0	14.5	1.4	0.8	13×2	0.12	54.82	53.13	0.23	0.28	0.77	0.91	1.08
9.0	17.0	1.5	1.1	13×2	0.13	48.00	46.52	0.64	0.79	0.86	1.02	1.33
9.5	15.0	1.8	1.1	13×2	0.12	75.93	73.60	0.27	0.33	1.03	1.22	1.18
12.5	18.0	2.0	1.1	15×2	0.07	35.75	34.65	0.42	0.52	0.44	0.52	1.83
13.7	23.0	2.3	1.3	13.5×2.5	0.12	18.85	18.27	0.64	0.79	0.53	0.63	2.65
18.8	28.5	2.4	1.5	19.2×2	0.12	37.08	35.94	0.70	0.86	0.32	0.38	4.43
19.0	32.0	3.3	1.8	28×2	0.12	35.30	34.21	1.35	1.66	0.39	0.46	5.11
27.0	38.0	2.7	1.6	28.5×2.5	2*0.15	121.72	118.00	0.39	0.48	0.51	0.61	8.30
27.0	40.0	3.0	2.0	35×5	3*0.17	177.28	171.83	0.30	0.37	0.94	1.12	8.81
31.5	44.5	1.9	1.1	43×1.5	0.14	37.67	36.5	0.72	0.88	0.13	0.16	11.34
35.0	50.0	3.6	2.1	46×2	2*0.14	59.80	58.00	0.64	0.79	0.40	0.48	14.19
37.2	56.0	4.3	2.5	38.5*4	2*0.2	92.18	89.34	0.73	0.90	0.53	0.63	17.06
37.0	60.0	4.8	2.5	60*1.5	0.18	21.56	20.90	2.40	3.00	0.23	0.27	18.47
55.0	79.0	5.5	2.5	75.5*3.5	0.20	41.76	40.48	2.08	2.56	0.15	0.17	35.26
76.0	100.0	6.2	3.4	76.0*5	0.20	47.52	46.06	2.16	2.65	0.13	0.15	60.82

★ Parameters of Tin-bronze bellows

ID d (mm)	OD D (mm)	Distance of ipples ≈ t (mm)	Ripple thickness ≈ a (mm)	Recommended rim size	Wall thickness H 0 (mm)	Speciality parameter			Calculation value of effective area (cm 2 )
ID d (mm)	OD D (mm)	Distance of ipples ≈ t (mm)	Ripple thickness ≈ a (mm)	D 1 ×L 1 &d 1 ×l 2 (mm×mm)	Wall thickness H 0 (mm)	Single ripple rigidity (N/mm)	Max displacement of single ripple (mm)	Max bearing force (Mpa)	Calculation value of effective area (cm 2 )
4.0	6.0	1.9	0.45	4.8×1.5	0.07	323.40	0.12	3.33	0.20
6.5	11.5	1.7	1.0	9.0×3/7×3	0.15	205.80	0.40	4.27	0.64
9.5	15.0	2.6	1.6	12.5×2.5/10×2.5	0.16	194.16	0.53	4.62	1.18
13.5	21.0	2.1	1.2	16×2.5/14×2.5	0.16	105.00	0.68	1.70	2.34
15.0	24.0	2.3	1.2	22×1.5/15.5×1.5	0.14	64.00	1.24	1.17	3.00
18.5	28.0	2.4	1.5	25×2.5/19×2.5	0.10	27.10	0.85	0.81	4.25
23.5	35.0	3.5	2.0	32×2/24×2	0.12	34.52	1.92	0.83	6.72
25.5	38.0	3.0	1.8	28×4/26.5×4	0.14	52.80	1.17	0.73	7.92
32.0	45.0	1.9	1.1	40×3.5/32.5×3.5	0.12	36.75	0.73	0.26	11.64
37.0	52.0	3.5	2.0	37×5	0.12	28.00	1.29	0.38	15.55

★ Parameter of stainless steel bellows

ID d (mm)	OD D (mm)	Distance of ipples ≈ t (mm)	Ripple thickness ≈ a (mm)	Recommended rim size	Wall thickness H 0 (mm)	Speciality parameter			Calculation value of effective area (cm 2 )
ID d (mm)	OD D (mm)	Distance of ipples ≈ t (mm)	Ripple thickness ≈ a (mm)	D 1 ×L 1 &d 1 ×l 2 (mm×mm)	Wall thickness H 0 (mm)	Single ripple Rigidity (N/mm)	Max. displ-acement of single ripple (mm)	Max. bearing force (Mpa)	Calculation value of effective area (cm 2 )
9.5	15.0	1.9	1.4	13×3.5	0.12	132.40	0.23	4.17	1.18
11.5	18.0	2.2	1.4	14×3.5	0.15	202.50	0.23	3.53	1.71
12.0	20.0	2.1	1.2	18×3.5/12.5×3.5	0.12	78.00	0.41	1.98	2.01
13.5	21.0	3.2	2.3	16×4	0.14	123.62	0.42	4.19	2.34
14.0	22.0	2.4	1.4		0.14	114.00	0.35	2.23	2.55
17.5	27.0	3.3	2.4	20×4	0 .14	113.20	0.60	2.65	3.89
18.0	28.0	2.6	1.5	25×2.5	0.1 2	50.10	0.61	1.29	4.15
24.0	32.0	3.0	1.7	27×3	0. 10	108.3 2	0.45	0.96	6.16
25.5	38.0	4.2	2.9	32×4	0.15	73.56	0.90	1.75	7.92
33.5	45.0	3.7	2.7	39×5	0.18	219.76	0.57	1.37	12.10
37.5	52.0	4.5	3.1	45×5	0 .16	115.83	1.01	1.06	15.73
47.5	63.0	5.1	3.6	48×7	0.50	201.71	0.32	2.39	23.97
55.0	72.0	5.5	3.0	58×7	0.40	901.80	0.43	1.23	31.67
55.0	78.0	6.3	3.2	60×6	0.16	35.30	2.10	0.49	34.73
59.5	78.0	5.5	3.2	63×9	0.25	199.92	0.84	0.74	37.12
67.0	87.5	7.3	4.0	98×9	0.4	626.96	0.69	1.15	46.87
82.0	103.0	7.6	4.2	83×9	0.4	454.62	0.85	0.88	67.20
104.0	137.5	10.0	6.0	104×6	0.5	475.21	1.39	0.90	114.04

Circular Metallic Bellows

★ Application
·Working as pressure sensitive elements of devices, instruments, transducers and regulators
·Working as signal transform elements of temperature sensor and regulators
·Working in sealed systems for the purposes of medium isolation, sealing and compensation
·Working as flexible compensation elements in metallic bellows expansion joints

★ Materials
Brass H80 (symbol H)
Tin bronze QSn6.5-0.1 (symbol S)
Be-bronze Qbe1.9 (symbol P)
Elastic alloy 3J1 (symbol J)
Stainless steel 0Cr18Ni9, 0Cr18Ni9Ti (symbol G)
High-temperature alloy GH4169 (symbol G)

TAIYUAN AERO - INSTRUMENTS CO.,LTD.
Add : No.489 Bingzhou Nanlu, Taiyuan,Shanxi,China　　030006
http://www.taihangybc.com/　　E-mail:taihangw@public.ty.sx.cn
Contact : Yulin Zhang　　Tel:0086 351 7054699　　Fax:0086 351 7073433