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Deublin 55 57 Series Rotary Joints Product Overview and Local Alternative Recommendation FOCUS FUXUAN by Shandong Focus Machinery
The Deublin 55/57 Series are general‑purpose rotary joints designed for water, steam, hot oil, and other fluids. The two series have distinct roles:
55 Series – General‑purpose rotary joint for conventional media (water, intermittent steam, hot oil). A widely used, cost‑effective base model.
57 Series – Engineered for high‑speed, high‑wear conditions. An upgrade of the 55 Series that uses super‑hard seal materials, ideal for water containing impurities or high‑speed applications.
Feature | Description |
|---|---|
Core positioning | General‑purpose, suitable for normal conditions |
Design | Two precision ball bearings for accurate seal alignment; several models (55,155,255) use stainless steel rotors for better corrosion resistance |
Media | Water, intermittent steam (<20% of time), hot oil, air |
Housing material | Copper alloy housing + stainless steel 303/304 rotor |
Seal technology | Carbon graphite (cost‑effective) |
Applications | Cooling, intermittent steam heating, hot oil circulation, pneumatic systems |
Feature | Description |
|---|---|
Core positioning | Designed to solve wear problems under high line pressure – the most economical solution for wear issues |
Design | Completely new internal construction (different dimensions from 55 Series, but same design philosophy) |
Key advantage | Super‑hard seal materials (silicon carbide / tungsten carbide) – wear resistance up to 20 times higher than conventional materials |
Media | Especially suited for cooling water with impurities; also high‑speed water, steam, hot oil |
Serviceability | Field repairable – both seals can be replaced easily |
ELS option | Extended Life Seal combination available for poor‑quality water |
Material | Forged brass housing + stainless steel rotor, permanently lubricated ball bearings |
Feature | 55 Series (General) | 57 Series (Wear‑resistant) |
|---|---|---|
Core positioning | General‑purpose | High‑speed, high‑wear applications |
Key seal | Carbon graphite (standard) | Silicon carbide / tungsten carbide |
ELS option | No | Yes (for poor water quality) |
Main advantage | Broad application, cost‑effective | Extreme wear resistance, long life, handles impure water |
Field repairable | Yes | Yes (both seals replaceable) |
Ball bearings | Permanently lubricated | Permanently lubricated |
Vent ports | 3 | 3 (threaded optional) |
55 Series (including sub‑series 55,155,255,355,525,555,655):
55‑000‑001, 55‑000‑002, 55‑000‑003, 55‑000‑004, 55‑000‑094, 55‑000‑095
55‑147‑151, 55‑147‑152, 55‑147‑149, 55‑147‑150
55‑147‑192, 55‑147‑193
55‑655‑094, 55‑655‑095
55‑842‑192, 55‑842‑193
57 Series (including sub‑series 57,157,257,357,527,557,657):
57‑000‑001, 57‑000‑002, 57‑000‑003, 57‑000‑004, 57‑000‑094, 57‑000‑095
57‑050‑001, 57‑050‑002, 57‑050‑003, 57‑050‑004, 57‑050‑094, 57‑050‑095
57‑130‑094, 57‑130‑095
57‑145‑094, 57‑145‑095
Parameter | Value |
|---|---|
Media | Water |
Max. flow | 174.3 L/min |
Max. pressure | 10 bar |
Max. temperature | 93 °C |
Shandong Focus Machinery Co., Ltd. is a Chinese manufacturer specialising in rotary joints. It offers two brands – FOCUS and FUXUAN – providing a mature, reliable alternative to Deublin 55/57 series.
Key strengths:
OEM / ODM customisation available (non‑standard products)
1‑year warranty and 7‑day no‑reason return policy
Competitive pricing (typical price ¥320‑¥480 for general‑purpose models)
Precise selection and customisation based on customer’s operating conditions
Deublin Equivalent | FOCUS / FUXUAN Product |
|---|---|
55 Series (general purpose) | General‑purpose rotary joint – for water, air, coolant, etc. |
57 Series (heavy‑duty wear resistant) | Reinforced wear‑resistant joint – uses hard seal technology |
General specifications:
Media: cooling water, hot water, cold oil, air
Housing material: brass (copper alloy); stainless steel rotor available on some models
Seal technology: flexible combinations (graphite, bronze, tungsten carbide, silicon nitride, etc.) depending on media
Threads: NPT / BSPT
Port sizes: 1/4″ to 4″ (covers user requirement of 3/8″–2″)
Warranty: 3 years
Parameter | Value |
|---|---|
Max. speed | 3000 RPM |
Max. pressure | 1.6 MPa (~232 psi) |
Standard temperature | 80°C / 120°C (high‑temperature seals available for >120°C) |
Media | Cooling water, hot water, cold oil, air |
Connection threads | NPT / BSPT |
Port size range | 1/4″ to 4″ |
Housing material | Brass |
Rotor material | Stainless steel 304 (on some models) |
Multi‑channel options | 2 to 24 channels; supports simultaneous transmission of water, air, hydraulic oil; pressure up to 50 MPa |
Deublin Model | FOCUS / FUXUAN Alternative |
|---|---|
55,155,255,355,525,555,655 series | General‑purpose equivalent |
55‑000‑001 … 55‑000‑095 | General‑purpose equivalent |
55‑147‑151/152/149/150 | General‑purpose equivalent |
55‑655‑094/095 | General‑purpose equivalent |
55‑842‑192/193 | General‑purpose equivalent |
57,157,257,357,527,557,657 series | Wear‑resistant equivalent |
57‑000‑001 … 57‑000‑095 | Wear‑resistant equivalent |
57‑050‑001 … 57‑050‑095 | Wear‑resistant equivalent |
57‑130‑094/095 | Wear‑resistant equivalent |
57‑145‑094/095 | Wear‑resistant equivalent |
The manufacturer can match any Deublin model number from your list using their internal cross‑reference table.
Parameter | Deublin 55/57 Series | FOCUS / FUXUAN 55/57 Series | Remarks |
|---|---|---|---|
Max. speed | Up to 3500 RPM (55 & some 57) | 3000 RPM | ✅ Generally matches. 3000 RPM is sufficient for most applications. For mandatory 3500 RPM, confirm with manufacturer. |
Max. pressure | 55 (water/oil): up to 750 psi (5.2 MPa) | ≤1.6 MPa (232 psi) | ✅ Meets 57 series requirement. FOCUS pressure limit satisfies the 57 series spec (150 psi). |
Max. temperature | ≤220°C (water); steam up to 343°C | Standard ≤120°C; high‑temp seal option available | ✅ Suitable for normal conditions. 120°C covers most water cooling and general duties. For >120°C specify high‑temp seals. |
Seal technology | 55: carbon graphite | 57 series: SiC hard seal | ✅ Core advantage matched. Both use super‑hard seals for high‑wear applications. |
Housing / rotor | Copper alloy / forged brass + stainless steel | Brass + stainless steel 304 | ✅ Equivalent. Proven industrial materials. |
Port size range | 3/8″ to 2″ | 1/4″ to 4″ | ✅ Fully compatible. FOCUS covers a wider range. |
Thread type | NPT / BSP | NPT / BSPT | ✅ Fully compatible. |
Field repairable | Yes (57 series) | Yes | ✅ Yes. |
ELS option (poor water) | Yes (57 series) | Available on request | ✅ Can be customised. Discuss with supplier. |
Multi‑channel | Some models | 2 to 24 channels, up to 50 MPa | ✅ FUXUAN excels here. |
Application | Recommended FOCUS / FUXUAN Model |
|---|---|
Ordinary water cooling | 55 Series general‑purpose |
Impure water / high speed | 57 Series hard seal |
Simultaneous water, air, oil | FUXUAN multi‑channel joint |
High temperature (>120°C) | 57 Series with high‑temp seal |
Steam / hot oil | 57 Series with high‑temp seal |
Product Type | Approximate Price (RMB) |
|---|---|
General‑purpose 55/57 series alternative | ¥320 – ¥4800 The technical parameters of different models vary, and the prices also differ. |
Media – water, coolant, steam, hot oil, air
Working pressure – actual operating range
Rotational speed – equipment RPM
Operating temperature – continuous and peak
Provide original Deublin model number – e.g., 55‑000‑095, 57‑000‑001. This is the basis for cross‑reference.
Specify operating conditions – media, pressure, speed, temperature, number of channels.
Confirm mounting dimensions – thread type (NPT/BSP), size, and any flange requirements.
Check warranty and support – understand after‑sales policy.
Purchase directly from Shandong Focus Machinery (official Alibaba store or their website) to ensure accurate selection and genuine after‑sales support.
Shandong Focus Machinery (FOCUS / FUXUAN) provides a mature, cost‑effective alternative to Deublin 55/57 series rotary joints:
Performance – mirrors the versatility of Deublin 55 and the wear‑resistant design of Deublin 57.
Seal technology – 57 series uses SiC hard seals, matching Deublin’s approach for high‑wear conditions.
Price – general‑purpose units from ¥320 to ¥480 offer significant savings.
Customisation – OEM/ODM available for high temperature, high pressure, multi‑channel requirements.
For the best result, provide your complete Deublin model list and full operating parameters to the manufacturer – they will give you an exact, drop‑in replacement recommendation.
Document prepared based on Deublin 55/57 series specifications and Shandong Focus Machinery product data. Always verify with the manufacturer for your specific application.
Best Regards,
Annie Ben
Focus Machinery Rotary Joint
WeChat 0086 13869496275
Email: annie@focusesmachinery.com
-------------------------------------
Company：Shandong Focus Machinery Co.,Ltd.
Contact: Annie Ben <Sales Director>
Tel/WeChat: 0086-138-6949-6275
WhatsApp/Facebook: 0086-138-6949-6275
Email: annie@focusesmachinery.com
Website: https://focusesmachinery.com/
Made In China Site：https://membercenter.made-in-china.com/
Alibaba: https://china-focus.en.alibaba.com/
Add: No. 988 Xingteng East Road, Shannan Street, Zaozhuang, Shandong, China
