ASME Pressure Accumulators and bladder

Description

1.Model code

B－15G－7/8UNF－N－A
1 2 3 4 5
1、Category：
B－Bladder
2、Volume size：
GAL－USA Standard；1QT / 1PT / CI(cu.in.)
L－EU Standard & China Standard
3、Gas Stem Type
M24；M30；M50；5/8UNF；7/8UNF
4、Rubber material：
Standard NBR(N)－
5、Structure：
A－USA
E－EU Standard
C－China Standard

Example：
A bladder for 1PT accumulator，Standard Buna N Aromatic Resistant，the thread of the gas stem is 5/8UNF。The type of the bladder is B－1PT－5/8UNF－N－A .

2.Standard bladder compounds (the bladder can be supplied with the following choices of compounds to render it compatible with the system fluid).

CODE	Rubber material		Operating temp range / ℃	Compatible liquid
N	Nitrile rubber	NBR	-20～80	Mineral oil, vegetable oil, silicon and lubricating oil, diesel oil, kerosene, fuel oil, flame retardant liquid (HFA, HFB, HFC) not exceeding 100 ℃, water, seawater, etc
L	Low temperature nitrile rubber	Low Temp NBR	-40～80
H	High temperature nitrile rubber	High Temp NBR	-20～105
Q	Hydrogenated nitrile rubber	HNBR	-30～140
O	Chloroether rubber	ECO	-30～120	Unleaded gasoline, mineral oil
E	EPDM rubber	EPDM	-50～130	Brake fluid, hot water, detergent, water glycol, various acids and bases, hydrochloric acid, etc
F	Fluororubber	FFM(Viton )	-10～140	Mineral oil, some inorganic acids, freon
C	Neoprene	Chloroprene	-23～110	Some freon, water and aqueous solution, ammonia, carbon dioxide, mineral oil, paraffin and silicone oil
I	Butyl rubber	Butyl（IIR）	-45～125	Phospholipids (hfd-r), hot water, ammonia, caustic soda, glycol based brake fluid, alcohol, etc

For special liquids, consult our technicians.

3.Sizes and dimensions

Type and dimensions of bladder ( China national standard )

Accumulator specification		C mm	D mm	E mm	B mm	A mm	Accumulator specification			C mm	D mm	E mm	B mm	A mm
external diameterφ	volumeL						external diameterφ		vplume L
89	0.4	77	M16×1.5	M24×1.5	44	89	152		1.6	132	M16×1.5	M30×1.5	50	144
	0.63					144			2.5					210
	1					260			4					312
114	1	98				150			6.3					486
219	10	190	M16×1.5	M30×1.5	60	415	299	25		262	M16×1.5	M30×1.5	77	470
	16					615		40						740
	20					755		50						920
	25					925		63						1180
	32					1170		80						1440
	40					1405		100						1880
	50					1645		125						2300
229	10	200	M16×1.5	M30×1.5	80	320	351	63		312	M16×1.5	M50×1.5	80	780
	20					589		80						1000
	25					760		100						1280
	32					1108		125						1590
	40					1258		160						2050
	50					1625		180						2300
	54					1711		200						2580