Advertisement
Quick Links
Advertisement
Related Manuals for HYDAC International SBO
Summary of Contents for HYDAC International SBO
- Page 1 Diaphragm accumulators Installation and repair instructions EN 3.100.M6/02.25...
- Page 2 EN: Translation / original language: German © 2025 HYDAC Technology GmbH. All rights reserved. ® All product names used may be trademarks or registered trademarks of HYDAC or the particular owner. This manual was prepared to the best of our knowledge. Nevertheless, and despite the greatest care, it cannot be ruled out that mistakes could have crept in.
- Page 3 36028801947678603 This document contains important information and instructions on how to repair HYDAC diaphragm accu- mulators, type SBO...-...A6/..The information provided in these instructions refers to the operating conditions, designs and applications described in the documents included with the product. For applications, operating conditions and/or designs not described, please contact the relevant technical department.
- Page 4 2. PRODUCT INFORMATION Product information 27021602693616523 Diaphragm accumulators are pressure vessels (hydraulic accumulators) with a nitrogen filling that is sepa- rated from the operating medium by a diaphragm. Drawings 27021602704269323 Screw- thread with drain function Screw-in thread Standard gas port Here: Minimess gas charging valve Other versions possible Screw-mounted diaphragm accumulator...
- Page 5 2. PRODUCT INFORMATION Torque values 18014403450298507 Item Nominal volume Series SBO … (U) [Nm] Carbon steel Stainless steel – 0.25 – – – – – 0.1 ... 10 – 0.1 ... 10 – Spare parts and accessories 27021602705044235 Spare parts...
- Page 6 2. PRODUCT INFORMATION Spare parts kit Item Spare parts set, gas side Qty. Item consisting of: consisting of: Support ring Gasket ring O-ring Locking screw Elastomer diaphragm Protective cap 100% PTFE diaphragm Gasket ring Locking screw Accessories Tool Nominal volume Part no.
- Page 7 3. SAFETY Safety 18014403441183243 Basic guidelines 4931863819 Intended use ● Hydraulic accumulators are intended for use in hydraulic installations and are exclusively designed to store and then discharge pressure fluids. ● Hydraulic accumulators are dimensioned, designed, manufactured and placed on the market on the basis of national and international regulations.
- Page 8 3. SAFETY DANGER Risk of burns The accumulator shell can become hot. DANGER Risk of suffocation Nitrogen is released into the surrounding area when draining nitrogen from the hydraulic accumulator or when safety devices respond. Large quantities of nitrogen in enclosed areas cause a lack of oxygen: Vent rooms.
- Page 9 4. DISMANTLING THE HYDRAULIC ACCUMULATOR Dismantling the hydraulic accumulator 27021602696772363 You will find the drawings of the named items in the following sections in "drawings" [▶Sec. 2.1]. Removal 18014403442034315 DANGER u Before carrying out any work on the hydraulic accumulator, the relevant safety precautions must be taken.
- Page 10 4. DISMANTLING THE HYDRAULIC ACCUMULATOR 1. Loosen the lock nut 5 with the appropriate hook wrench but not fully, so that there are still two to three thread turns – see ▶Sec. 2.3 "Spare parts and accessories ". 2. Detach upper accumulator part 1 from lower accumulator part 2, in an upwards direction.
- Page 11 4. DISMANTLING THE HYDRAULIC ACCUMULATOR Checking individual parts 27021602696780939 NOTICE u Material compatibility must be taken into account when cleaning: only use fluids that are compatible with the elastomer and container material. u Do not use any aggressive or abrasive cleaning agents. u The lubricant used must be appropriate for the elastomer and container material and the application, e.g.
- Page 12 4. DISMANTLING THE HYDRAULIC ACCUMULATOR Assembly 27021602697244555 Lubricant Lubricant Shell/diaphragm Material Thread Molykote HSC plus Carbon steel OKS NSF 250 Stainless steel Diaphragm 4a/4b Divinol Lithogrease G 421 NBR, ECO, FPM, PTFE Support ring 3a O-ring 3b Silicone oil Butyl Groove Operating medium EPR, EPDM, butyl, PTFE Tab. 1: Lubricant Warm-up and cool-down times...
- Page 13 4. DISMANTLING THE HYDRAULIC ACCUMULATOR Assembling the diaphragm on the top of the accumulator Procedure for elastomer diaphragms: 1. Wet support ring 3a and groove on upper accu- mulator part 1 with lubricant. 2. Insert support ring 3a and elastomer diaphragm 4a into the groove of upper accumulator part 1.
- Page 14 4. DISMANTLING THE HYDRAULIC ACCUMULATOR Setting the pre-charge pressure 1. Set the required pre-charge pressure by using the charging and testing unit FPU; see other applicable documents: "3.501.BA" [▶Sec. 1] The pre-charge pressure must be configured in accordance with the design of lower accumulator part Design with one central larger hole Design with several smaller holes ≤...
- Page 15 5. DISPOSAL Disposal 9007204194609035 DANGER u Before carrying out any work on the hydraulic accumulator, the relevant safety precautions must be taken. u Risk of suffocation: Ensure adequate ventilation when discharging nitrogen from the hydraulic accu- mulator in enclosed spaces. u Any hydraulic fluid that may leak out must be collected.
- Page 16 6. CUSTOMER SERVICE Customer service 5094269323 Service, repeat testing and repairs can be carried out at the HYDAC head office or at all national and inter- national HYDAC sales and service centres. Contact at Headquarters HYDAC Systems & Services GmbH Werk 13 Postfach 1251 66273 Sulzbach/Saar...
- Page 17 EN 3.100.M6/02.25...
- Page 18 EN 3.100.M6/02.25...
- Page 19 EN 3.100.M6/02.25...
- Page 20 HYDAC Technology GmbH Industriegebiet Accumulator Division 66280 Sulzbach/Saar Germany Tel. +49 6897 509-01 speichertechnik@hydac.com www.hydac.com Further addresses: www.hydac.com/en/contacts...
Need help?
Do you have a question about the SBO and is the answer not in the manual?
Questions and answers