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Industrial ASME Certified Bladder Accumulator For Heavy Duty Hydraulic System

Nominal Volume

Gallon (Gal): 1, 2.5, 5, 10, 11, 14, 15 Gal
Liter (L): 3.8L, 9.5L, 18.9L, 38L, 42L, 53L, 57L

Working Pressure

3000 psi (21 MPa) – Standard
5000 psi (35 MPa) – High pressure

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Description

Product Introduction
Dongxu ASME Standard Bladder Accumulator is a pressure vessel that stores hydraulic energy by compressing nitrogen gas inside a rubber bladder. It follows ASME Section VIII Div.1 standards, with NB registration and U-stamp certification, designed for high pressure, heavy-duty hydraulic systems. The bladder separates gas (nitrogen) and hydraulic oil completely; when system pressure rises, oil enters and compresses nitrogen; when pressure drops, nitrogen expands and releases stored oil back to the circuit for energy compensation, pressure stabilization and shock absorption.

Product size drawing

Order description

Type parameter list

Model	Design Pressure (psi)	Nominal Volume (gal)	Φ (in)	Length (in)	Height (in)	Connection	Weight (lb)
B1qt/3000	3000（21MPa）	1/4	Φ4.50	10.787	1.969	NPT1/4	11.2
B1/3000		1	Φ6.70	16.339	2.559	NPT1 1/4	32.4
B2.5/3000		2.5	Φ9.00	21.496	3.386	NPT2	83.6
B5/3000		5		32.520			121.9
B10/3000		10		55.354			198.8
B11/3000		11		59.685			214.9
B15/3000		15		77.598			277.1
T2.5/3000	3000（21MPa）	2.5	Φ9.00	21.850	3.386	NPT2	81
T5/3000		5		32.874			119.4
T10/3000		10		55.709			196.3
T11/3000		11		60.039			212.4
T15/3000		15		77.953			275.3
B1qt/5000	5000（34.5MPa）	1/4	Φ4.76	10.901	1.969	NPT1/4	13.7
B1/5000	5000（34.5MPa）	1	Φ7.10	14.937	2.559	NPT1 1/4	43.9
B2.5/6600	6600（45.5MPa）	2.5	Φ9.65	20.066	3.386	NPT2	135.0
B5/6600		5		32.066			221.0
B10/6600		10		53.066			368.0
B15/6600		15		86.566			527.0
T2.5/6600	10000（69MPa）	2.5	Φ11.77	21.200	4.000	NPB2	145.0
T5/6600		5		33.200			226.0
T10/6600		10		54.200			373.0
T15/6600		15		77.700			532.0
B2.5/10000		2.5		22.200			331.4
B5/10000		5		34.200			518.4
B10/10000		10		55.200			845.4
B15/10000		15		78.700			1210.4
T2.5/10000		2.5		22.900			339.0
T5/10000		5		34.900			526.0
T10/10000		10		55.900			853.0
T15/10000		15		79.400			1218.0

Key Features

ASME Certified: ASME Sec VIII Div.1, NB registered, U-stamp; meets US & international safety codes.
High Pressure Rating: Working pressure up to 3000 psi (21 MPa) / 5000 psi (35 MPa).
Leak-Tight Design: Rubber bladder isolates gas and oil, no gas dissolution, low gas loss, long service life.
Fast Response: Quick acting, suitable for frequent charge/discharge cycles.
Durable Materials: Chrome-moly alloy steel shell; standard Buna-N (NBR) bladder, optional Butyl/EPR/FKM for wide media compatibility.
Easy Maintenance: Bottom/top repairable design; standard Schrader gas valve; NPT/SAE/Code 61 fluid ports.
Wide Temp Range: -20°F to +200°F (-29°C to +93°C).

Applications

Pressure Holding & Leakage Compensation: Injection molding machines, die-casting machines, hydraulic presses.
Energy Saving & Peak Shaving: Reduce pump size, lower energy consumption for intermittent high flow demands.
Hydraulic Shock Absorption: Protect pumps, valves and pipes from pressure spikes in mining, construction and offshore equipment.
Emergency Power Supply: Backup energy for safety doors, brakes or critical actuators during power failure.
Industrial Mobile Hydraulics: Cranes, loaders, excavators, forklifts, aerial work platforms.
Oil & Gas / Offshore: Wellhead control, BOP systems, subsea hydraulic units.

Packaging & Delivery

Secure Industrial Protection: Each cooler is individually packaged in reinforced, shock-absorbent crating to protect the cooling core and fittings during transit.
Global Fulfillment: Factory-direct dispatch with optimized logistics support to reach industrial hubs in Europe, North America, and Asia with minimal lead time.
Documentation Ready: Provided with full technical and export documentation to ensure hassle-free customs clearance and installation.

Certification & Quality Assurance

Global Standards: Manufactured under strict ISO9001, ISO14001, and ISO10012 quality management systems.
Long-Term Reliability: Engineered for an operational lifespan of 10+ years, providing a foundation of stability for your heavy-duty machinery.
Rigorous Integrity Testing: Every DC unit undergoes comprehensive pressure-testing to ensure leak-free operation and structural durability under load.

The MEISON Advantage

Factory-Direct Expertise: "Factory-Direct Expertise. Professionally Curated." — 20+ years of manufacturing leadership in hydraulic components.
Global Trusted Partner: Over 1,000,000 units sold to 6,000+ satisfied customers worldwide.
Innovation & R&D: 60+ technical patents support our commitment to high-performance, precision-engineered hydraulic components.
Cinematic Industrial Image: Our design focus on technical authority and professional aesthetics helps you build immediate, long-lasting trust with your B2B customers.

FAQs

（Frequently Asked Questions）

You are manufacturer or trading company?

We are a direct manufacturer, Dongxu Hydraulic Machinery Co., Ltd.
This means you get the most competitive factory price and direct technical support. There are no middlemen or traders involved. You are welcome to visit our factory at any time.

Can I have OEM service and put my logo on products or packaging?

Yes, OEM service is available. We offer customized solutions including brand logo printing, custom color painting, special thread types (G/BSPT/NPT), and SAE flange connections. Your brand identity is respected .

What is the lead time for this model?

It depends on the quantity. Shipment typically occurs within 10–15 business days after order confirmation. For large OEM orders, please contact us for confirmation.

What warranty services do you offer?

We offer a 12-month comprehensive warranty. In addition, we provide extended warranty and maintenance packages.

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