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Summary of Contents for Hydac SB330
- Page 1 Bladder accumulators Installation and repair instructions EN 3.201.M5/09.24...
- Page 2 © 2024 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 excluded that mistakes could have crept in.
- Page 3 Go to document 9007204183455627 This document contains important information and instructions on how to repair HYDAC bladder accumu- lators from the following series: SB330, SB400, SB440, SB500, SB550, SB600, SB690 The information provided in these instructions refers to the operating conditions, designs and applications described in the documents included with the product.
- Page 4 Standard bladder accumulator Detail of fluid port SB330/400 – 0.5 … 6 l SB330 – 10 l narrow SB330/400/600 (H) – 10 … 50 l SB440/500/550/690 – 10 … 50 l SB550/690 – 1 … 5 l Detail X Standard bladder accumulator, fluid port...
- Page 5 Fluid-side sealing Not available as a spare part Not available for all accumulator types Vent screw (item 19) for NBR/carbon steel: Seal ring (item 20) integrated Torque values 9007204195557515 SB330(H)/SB400(H)/SB600(H) SB330/400 SB550 SB440 – 690 0.5 - 1 2.5 - 6...
- Page 6 NBR20, carbon steel, others available upon request Nominal Series Part no. volume Bladder Seal kit Repair kit Oil valve Anti-extrusion Gas valve assembly assembly ring insert SB330/400 365263 353606 2102355 2102355 632865 SB330/400 237624 353606 2106261 2106261 2105411 632865 SB550 237624...
- Page 7 2. PRODUCT INFORMATION Complete bladder Item Seal kit Item consisting of: consisting of: Bladder O-ring Gas valve insert Washer Retaining nut O-ring Seal cap Vent screw Protective cap Seal ring O-ring Support ring O-ring Consists of complete bladder and seal kit Not available for all accumulator types Accessories Tools...
- Page 8 All work on the hydraulic accumulator must only be carried out by suitably trained staff. ● Incorrect installation or handling can lead to serious accidents. The relevant protective measures must be taken (e.g. for aggressive operating media). Further legal information See: www.hydac.com Safety hazards 4931917195 WARNING Gases under pressure After discharging and/or completely draining the hydraulic accumulator (e.g.
- Page 9 3. SAFETY INFORMATION 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: ventilate areas.
- Page 10 4. DISMANTLING THE HYDRAULIC ACCUMULATOR Dismantling the hydraulic accumulator 9007204187290379 You will find drawings of the items mentioned in the following sections in ▶Sec. 2.1 "Drawings". Disassembly 9007204187293323 DANGER u Before carrying out any work on the hydraulic accumulator, the relevant safety precautions must be taken.
- Page 11 4. DISMANTLING THE HYDRAULIC ACCUMULATOR 4. Loosen and unscrew the lock nut (18) using an appropriate C-spanner. 5. Remove spacer ring (17) if present. 6. Loosen the fluid valve (9-13) and push it into the accumulator shell (1). 7. Reach into the hole and remove the following parts from the fluid valve (9-13) inside the accu- mulator shell: support ring (23) if present, O-ring (16), packing...
- Page 12 Pressure test Pressure tests (e.g. for recurring testing) must not be carried out with the separation element (bladder). Appropriate sealing elements are available from HYDAC. The media compatibility of the sealing elements used must be checked. The pressure test must be coordinated with the approval authority.
- Page 13 4. DISMANTLING THE HYDRAULIC ACCUMULATOR Assembly 9007204187762571 1. The inside of the accumulator shell (1) must be free of foreign bodies and contamination. Coat the inside surface of the accumulator shell (1) completely with oil or spray it with the subsequent operating medium to ensure trouble-free installation of the bladder (2).
- Page 14 4. DISMANTLING THE HYDRAULIC ACCUMULATOR 11. Further assembly is carried out in the following order: Packing collar (15), O-ring (16), support ring (23) if present, spacer ring (17) if present, lock nut (18) 12. Tighten lock nut (18) to correct torque; see ▶Sec. 2.2 "Torque values".
- 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...
- Page 17 EN 3.201.M5/09.24...
- Page 18 EN 3.201.M5/09.24...
- Page 19 EN 3.201.M5/09.24...
- 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...
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