YDA Diaphragm Accumulator (Membrane Accumulator)

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Website: http://hydraulicvalve-en.com/6-hydraulic-accumulator.html

The diaphragm accumulator, also known as membrane accumulator, is a lightweight and space-efficient hydraulic device hat stores energy through pressurized fluid and releases energy when required. It features a cylindrical or spherical shell with an internal flexible rubber diaphragm that separates the gas chamber from the hydraulic fluid chamber.

Used in hydraulic systems, the membrane accumulator absorbs pressure spikes, stabilizes fluid flow, and reduce vibrations, improving overall hydraulic performance and protecting system components. Its compact size and reliable operation make it ideal for mobile and industrial machinery where space and weight are critical considerations.

Hydraulic Symbol 1

Specifications

YDA Series Diaphragm Accumulator	Model Code
Nominal Volume	0.075L,0.16L,0.32L,0.5L,0.75L,1.0L,1.4L,2.0L,2.8L,3.5L
Max. Operating Pressure	210bar,330bar
Valve Port Size	1:M28×1.5
Diaphragm Material	1:NBR 2:ECO
Inner Thread Fluid Port	1:G 1/2" 2:G 3/4"
Outer Thread Fluid Port	1:G 1/2" 2:M33×1.5 3:M45×1.5
Pre-Charge Pressure	00:no need for gas pre-charge 15:gas pre-charge pressure of 15bar
Design No.	10

Model Options

Model	Nominal Volume	Max. Operating Pressure	Diaphragm Material	Fluid Port		A	B	C	D	Gas Port	Diameter Ø	Height H	Max. Permissible Pressure Ratio	Permissible ΔP	Drawing No.
Model	Nominal Volume	Max. Operating Pressure	Diaphragm Material	Inner Thread IG	Outer Thread AG	A	B	C	D	Gas Port	Diameter Ø	Height H	Max. Permissible Pressure Ratio	Permissible ΔP	Drawing No.
YDA-0.075-210-1-1-1	0.075	210	NBR	G 1/2		14	–	29	32	M28×1.5	66	117	1:8	140	10002600-101
YDA-0.16-210-1-1-1	0.16	210	NBR	G 1/2		14	–	29	32	M28×1.5	76	124	1:8	140	10002600-102
YDA-0.32-210-1-1-1	0.32	210	NBR	G 1/2		14	–	29	32	M28×1.5	95	143	1:8	140	10002600-103
YDA-0.32-330-1-1-1	0.32	330	NBR	G 1/2		14	–	29	32	M28×1.5	99	147	1:8	150	10002600-104
YDA-0.5-210-1-1-1	0.5	210	NBR	G 1/2		17	–	34	41	M28×1.5	103	149	1:8	140	10002600-105
YDA-0.5-210-1-1-1/2	0.5	210	NBR	G 1/2	M33×1.5	20	20	–	41	M28×1.5	103	165	1:8	140	10002600-106
YDA-0.5-330-1-1-1	0.5	330	NBR	G 1/2		17	–	34	41	M28×1.5	112	159	1:8	150	10002600-107
YDA-0.5-330-1-1-1/2	0.5	330	NBR	G 1/2	M33×1.5	20	20	–	41	M28×1.5	112	175	1:8	150	10002600-108
YDA-0.75-210-1-1-1	0.75	210	NBR	G 1/2		17	–	34	41	M28×1.5	122	169	1:8	140	10002600-109
YDA-0.75-210-1-1-1/2	0.75	210	NBR	G 1/2	M33×1.5	20	20	–	41	M28×1.5	122	185	1:8	140	10002600-110
YDA-0.75-330-1-1-1	0.75	330	NBR	G 1/2		17	–	34	41	M28×1.5	126	173	1:8	150	10002600-111
YDA-0.75-330-1-1-1/2	0.75	330	NBR	G 1/2	M33×1.5	20	20	–	41	M28×1.5	126	189	1:8	150	10002600-112
YDA-1.0-210-1-1-1	1.0	210	NBR	G 1/2		17	–	34	41	M28×1.5	136	178	1:8	140	10002600-113
YDA-1.0-210-1-1-1/2	1.0	210	NBR	G 1/2	M33×1.5	20	20	–	41	M28×1.5	136	194	1:8	140	10002600-114
YDA-1.0-330-1-1-1	1.0	330	NBR	G 1/2		17	–	34	41	M28×1.5	140	182	1:8	150	10002600-115
YDA-1.0-330-1-1-1/2	1.0	330	NBR	G 1/2	M33×1.5	20	20	–	41	M28×1.5	140	198	1:8	150	10002600-116
YDA-1.4-210-1-1-1	1.4	210	NBR	G 1/2		17	–	34	41	M28×1.5	150	205	1:8	140	10002600-117
YDA-1.4-210-1-1-1/2	1.4	210	NBR	G 1/2	M33×1.5	20	20	–	41	M28×1.5	150	221	1:8	140	10002600-118
YDA-1.4-330-1-1-1	1.4	330	NBR	G 1/2		17	–	34	41	M28×1.5	158	213	1:8	150	10002600-119
YDA-1.4-330-1-1-1/2	1.4	330	NBR	G 1/2	M33×1.5	20	20	–	41	M28×1.5	158	229	1:8	150	10002600-120
YDA-2.0-210-1-1-2	2.0	210	NBR	G 3/4		16	–	36	41	M28×1.5	168	230	1:4	140	10002600-121
YDA-2.0-210-1-1-2/3	2.0	210	NBR	G 3/4	M45×1.5	20	20	–	46	M28×1.5	168	247	1:4	140	10002600-122
YDA-2.0-330-1-1-2	2.0	330	NBR	G 3/4		16	–	36	41	M28×1.5	172	234	1:4	150	10002600-123
YDA-2.0-330-1-1-2/3	2.0	330	NBR	G 3/4	M45×1.5	20	20	–	46	M28×1.5	172	251	1:4	150	10002600-124
YDA-2.8-210-1-1-2	2.8	210	NBR	G 3/4		16	–	36	41	M28×1.5	168	264	1:4	140	10002600-125
YDA-2.8-210-1-1-2/3	2.8	210	NBR	G 3/4	M45×1.5	20	20	–	46	M28×1.5	168	281	1:4	140	10002600-126
YDA-2.8-330-1-1-2	2.8	330	NBR	G 3/4		16	–	36	41	M28×1.5	172	272	1:4	150	10002600-127
YDA-2.8-330-1-1-2/3	2.8	330	NBR	G 3/4	M45×1.5	20	20	–	46	M28×1.5	172	289	1:4	150	10002600-128
YDA-3.5-210-1-1-2	3.5	210	NBR	G 3/4		16	–	36	41	M28×1.5	168	316	1:4	140	10002600-129
YDA-3.5-210-1-1-2/3	3.5	210	NBR	G 3/4	M45×1.5	20	20	–	46	M28×1.5	168	333	1:4	140	10002600-130
YDA-3.5-330-1-1-2	3.5	330	NBR	G 3/4		16	–	36	41	M28×1.5	172	320	1:4	150	10002600-131
YDA-3.5-330-1-1-2/3	3.5	330	NBR	G 3/4	M45×1.5	20	20	–	46	M28×1.5	172	337	1:4	150	10002600-132

Hydraulic Symbol 2

Specifications

YDA Series Diaphragm Accumulator	Model Code
Nominal Volume	0.075L,0.16L,0.32L,0.5L,0.75L
Max. Operating Pressure	70bar
Valve Port Size	0:none
*Diaphragm Material	1:NBR 2:ECO
* Fluid Port	0:G 1/2" (inner thread) 1:G 1/2" (outer thread)
*Pre-Charge Pressure	15:maximum gas pre-charge pressure of 15bar
Design No.	10

Model Options

Model	Nominal Volume	Max. Operating Pressure	Diaphragm Material	Fluid Port		A	B	C	D	E	Gas Port	Diameter Ø	Height H	Max. Permissible Pressure Ratio	Permissible ΔP
Model	Nominal Volume	Max. Operating Pressure	Diaphragm Material	Inner Thread IG	Outer Thread AG	A	B	C	D	E	Gas Port	Diameter Ø	Height H	Max. Permissible Pressure Ratio	Permissible ΔP
YDA-0.075-70-0-1-1	0.075	70	NBR		G 1/2	–	16	–	27	32	-	66	107	1:6	50
YDA-0.075-70-0-1-0	0.075	70	NBR	G 1/2		14	–	34	–	41	-	66	98	1:6	50
YDA-0.16-70-0-1-1	0.16	70	NBR		G 1/2	–	16	–	27	32	-	76	114	1:6	50
YDA-0.16-70-0-1-0	0.16	70	NBR	G 1/2		14	–	34	–	41	-	76	105	1:6	50
YDA-0.32-70-0-1-1	0.32	70	NBR		G 1/2	–	16	–	27	32	-	89	127	1:6	50
YDA-0.32-70-0-1-0	0.32	70	NBR	G 1/2		14	–	34	–	41	-	89	118	1:6	50
YDA-0.5-70-0-1-1	0.5	70	NBR		G 1/2	–	16	–	27	32	-	103	139	1:6	50
YDA-0.5-70-0-1-0	0.5	70	NBR	G 1/2		14	–	34	–	41	-	103	130	1:6	50
YDA-0.75-70-0-1-1	0.75	70	NBR		G 1/2	–	16	–	27	32	-	122	159	1:6	50
YDA-0.75-70-0-1-0	0.75	70	NBR	G 1/2		14	–	34	–	41	-	122	150	1:6	50
YDA-0.075-70-0-2-1	0.075	70	ECO		G 1/2	–	16	–	27	32	-	66	107	1:6	50
YDA-0.075-70-0-2-0	0.075	70	ECO	G 1/2		14	–	34	–	41	-	66	98	1:6	50
YDA-0.16-70-0-2-1	0.16	70	ECO		G 1/2	–	16	–	27	32	-	76	114	1:6	50
YDA-0.16-70-0-2-0	0.16	70	ECO	G 1/2		14	–	34	–	41	-	76	105	1:6	50
YDA-0.32-70-0-2-1	0.32	70	ECO		G 1/2	–	16	–	27	32	-	89	127	1:6	50
YDA-0.32-70-0-2-0	0.32	70	ECO	G 1/2		14	–	34	–	41	-	89	118	1:6	50
YDA-0.5-70-0-2-1	0.5	70	ECO		G 1/2	–	16	–	27	32	-	103	139	1:6	50
YDA-0.5-70-0-2-0	0.5	70	ECO	G 1/2		14	–	34	–	41	-	103	130	1:6	50
YDA-0.75-70-0-2-1	0.75	70	ECO		G 1/2	–	16	–	27	32	-	122	159	1:6	50
YDA-0.75-70-0-2-0	0.75	70	ECO	G 1/2		14	–	34	–	41	-	122	150	1:6	50