Diaphragm accumulators are a cost effective option for numerous functions involving energy storage, shock absorption or pulsation dampening in a hydraulic or fluid system. They are well suited for applications where smaller fluid volumes and flow rates are adequate and that require or involve:
- Compact design
- Low weight
- Flexible mounting positions
- Extremely quick shock response
- Low cost
- Low lubricity fluids, like water
|Model Code Description
|Fluid Port Connection
|6.6 kg14.6 lb
|G 3/4 BSPP Female
|Country of Installation
|NBR (Buna N)
|Compound Operating Temperature Range (Mineral Oils)
|5 to 180 ºF
|Compound Operating Temperature Range (Water and Water-Glycols (5% Minimum Glycol))
|32 to 180 ºF
|Shell Construction and Gas Port Design
|Welded Construction, rechargeable, ZP Gas Valve Version 1 (M 28 x 1.5)
|Depending on Application
|Standard for oil service (mineral oil)
|Thread (British Standard Pipe Parallel (BSPP) – Female)
|40 gpm150 L/min
|0.528 gal2.000 L
|3000 psi210 bar
|Effective Gas Volume
|6.57 in167 mm
|8.37 in213 mm
|6.81 in173.0 mm
|1.81 in46 mm
Both types of diaphragm accumulators have the same basic construction. The difference is in the shell. The welded version has a shell that is electron-beam welded, and therefore cannot be repaired. The threaded type has a shell made up of two halves (top and bottom) which are held together by a threaded locking ring.
For use with certain aggressive or corrosive fluids, or in a corrosive environment, ZP offers protective coatings and corrosive resistant materials (i.e. stainless steel) for the parts that interface with the fluid or are exposed to the hostile environment.
Diaphragm accumulators are designed to mount in any position. In systems where contamination is a problem, we recommend a vertical mount with the fluid port oriented downward.
ZP diaphragm accumulators are designed to be screwed directly onto the system. We also recommend the use of our mounting components, to minimize the risk of failure due to system vibrations.
Some common applications of diaphragm accumulators are:Agricultural Machinery & EquipmentForestry EquipmentMachine ToolsMining Machinery & EquipmentMobile & Construction EquipmentOff-Road Equipment
Not all fluids are compatible with every elastomer at all temperatures, therefore, ZP offers the following materials:NBR (Standard Nitrile)LT-NBR (Low Temperature Nitrile)ECO 30 (Epichlorohydrin)IIR (Butyl)FP
Diaphragm Accumulators have been successfully applied in both industrial and mobile applications for energy storage, maintaining pressure, leakage compensation, and vehicle hydraulic systems.
ZP manufactures two types of diaphragm accumulators:Non-repairable (welded)Repairable (threaded)
If you work with gas cylinder or information about our company. You can communicate with us on the website. Our official website is www.zpcylinder.com. Our cost-effective products are very popular.