Our Stainless Steel and Carbon Steel DKO Swivel Union Fittings are high-precision metric hydraulic connectors engineered in strict accordance with ISO 8434-1 and DIN 2353 / DIN 3865 international standards. Featuring a precision-machined 24° sealing cone with an embedded high-grade O-ring, these components deliver a zero-leak, dual-component mechanical seal.
Constructed from premium stainless steel (SS304/SS316) or high-grade carbon steel, they ensure maximum corrosion resistance, exceptional burst pressure capacity, and reliable service lives inside demanding industrial environments exposed to aggressive media, chemical agents, and severe vibration shocks.
Premium Material Integrity: Available in Marine-Grade SS316 and SS304 for maximum acid, alkali, and rust protection, alongside high-strength carbon steel options.
Leak-Free Sealing Performance: The 24° cone design works in tandem with an elastic O-ring to form a highly reliable dual-contact seal that compensates for minor pipe misalignments.
High Vibration Resistance: The heavy-duty swivel nut assembly provides excellent resistance to continuous pressure impulses, mechanical vibrations, and fluid surges.
Eco-Friendly Carbon Steel Plating: Carbon steel variants are plated with Cr6-free zinc-nickel coating or trivalent zinc, surpassing 480 hours of standard salt spray testing without red rust.
Dual Series Versatility: Available in both L (Light Duty) and S (Heavy Duty) profiles to match varying wall thicknesses and system pressures.
Core Industrial Applications
Chemical & Petrochemical Processing: Fluid lines moving aggressive chemical agents, acids, or high-temperature processing liquids.
Marine, Offshore & Shipbuilding: High-pressure steering gear pipelines, deck cranes, and winch hydraulic systems exposed to salt spray environments.
Food, Beverage & Pharma Machinery: Stainless steel sanitary fluid networks requiring cleanable, corrosion-proof connectors.
Construction & Mining Equipment: Hydraulic lines for excavators, loaders, bulldozers, and heavy-duty drilling rigs.
Renewable Energy: Hydraulic pitching networks inside wind turbine nacelles and tracking systems.
Technical Specifications & Size Matrices
Working Pressure Range: 160 Bar to 315 Bar
Tube O.D. Options (mm): 6L, 8L, 10L, 12L, 15L, 18L, 22L, 28L, 35L, 42L
Thread Specification (Metric): M12x1.5 to M52x2
Working Pressure Range: 400 Bar to 800 Bar
Tube O.D. Options (mm): 6S, 8S, 10S, 12S, 14S, 16S, 20S, 25S, 30S, 38S
Thread Specification (Metric): M14x1.5 to M52x2
Stainless Steel Grade Profiles: AISI 316 / 316L, AISI 304 / 304L (Passivated finish for ultimate longevity)
Carbon Steel Grade Profiles: C45E / Q235 (Zinc-Nickel or Trivalent Zinc plated)
Standard Elastomeric Seals: Nitrile Rubber (NBR) standard; Viton (FKM) available for extreme chemical exposure and high-temperature processing.
Working Temperatures:
With NBR O-ring: -40°C up to +120°C
With Viton (FKM) O-ring: -20°C up to +200°C
| Products | Connection 1 Type | Connection 1 Size | Body Material |
|---|---|---|---|
| GZ06L71 | Male 24° Cone (with O-Ring) | 6 mm (O.D.) | Stainless Steel |
| GZ08L71 | Male 24° Cone (with O-Ring) | 8 mm (O.D.) | Stainless Steel |
| GZ10L71 | Male 24° Cone (with O-Ring) | 10 mm (O.D.) | Stainless Steel |
| GZ12L71 | Male 24° Cone (with O-Ring) | 12 mm (O.D.) | Stainless Steel |
| GZ15L71 | Male 24° Cone (with O-Ring) | 15 mm (O.D.) | Stainless Steel |
| GZ18L71 | Male 24° Cone (with O-Ring) | 18 mm (O.D.) | Stainless Steel |
| GZ22L71 | Male 24° Cone (with O-Ring) | 22 mm (O.D.) | Stainless Steel |
| GZ28L71 | Male 24° Cone (with O-Ring) | 28 mm (O.D.) | Stainless Steel |
| GZ35L71 | Male 24° Cone (with O-Ring) | 35 mm (O.D.) | Stainless Steel |
| GZ42L71 | Male 24° Cone (with O-Ring) | 42 mm (O.D.) | Stainless Steel |
| GZ06S71 | Male 24° Cone (with O-Ring) | 6 mm (O.D.) | Stainless Steel |
| GZ08S71 | Male 24° Cone (with O-Ring) | 8 mm (O.D.) | Stainless Steel |
| GZ10S71 | Male 24° Cone (with O-Ring) | 10 mm (O.D.) | Stainless Steel |
| GZ12S71 | Male 24° Cone (with O-Ring) | 12 mm (O.D.) | Stainless Steel |
| GZ16S71 | Male 24° Cone (with O-Ring) | 16 mm (O.D.) | Stainless Steel |
| GZ20S71 | Male 24° Cone (with O-Ring) | 20 mm (O.D.) | Stainless Steel |
| GZ25S71 | Male 24° Cone (with O-Ring) | 25 mm (O.D.) | Stainless Steel |
| GZ30S71 | Male 24° Cone (with O-Ring) | 30 mm (O.D.) | Stainless Steel |
| GZ38S71 | Male 24° Cone (with O-Ring) | 38 mm (O.D.) | Stainless Steel |
| GZR06L/06S71 | Male 24° Cone (with O-Ring) | 6 mm (O.D.) | Stainless Steel |
| GZR08/06L71 | Male 24° Cone (with O-Ring) | 8 mm (O.D.) | Stainless Steel |
| GZR08/06S71 | Male 24° Cone (with O-Ring) | 8 mm (O.D.) | Stainless Steel |
| GZR08L/08S71 | Male 24° Cone (with O-Ring) | 8 mm (O.D.) | Stainless Steel |
| GZR10/06L71 | Male 24° Cone (with O-Ring) | 10 mm (O.D.) | Stainless Steel |
| GZR10/08L71 | Male 24° Cone (with O-Ring) | 10 mm (O.D.) | Stainless Steel |
| GZR10/08S71 | Male 24° Cone (with O-Ring) | 10 mm (O.D.) | Stainless Steel |
| GZR10L/10S71 | Male 24° Cone (with O-Ring) | 10 mm (O.D.) | Stainless Steel |
| GZR12/06L71 | Male 24° Cone (with O-Ring) | 12 mm (O.D.) | Stainless Steel |
| GZR12/06S71 | Male 24° Cone (with O-Ring) | 12 mm (O.D.) | Stainless Steel |
| GZR12/08L71 | Male 24° Cone (with O-Ring) | 12 mm (O.D.) | Stainless Steel |
| GZR12/08S71 | Male 24° Cone (with O-Ring) | 12 mm (O.D.) | Stainless Steel |
| GZR12/10L71 | Male 24° Cone (with O-Ring) | 12 mm (O.D.) | Stainless Steel |
| GZR12/10S71 | Male 24° Cone (with O-Ring) | 12 mm (O.D.) | Stainless Steel |
| GZR12L/12S71 | Male 24° Cone (with O-Ring) | 12 mm (O.D.) | Stainless Steel |
| GZR15/08L71 | Male 24° Cone (with O-Ring) | 15 mm (O.D.) | Stainless Steel |
| GZR15/10L71 | Male 24° Cone (with O-Ring) | 15 mm (O.D.) | Stainless Steel |
| GZR15/12L71 | Male 24° Cone (with O-Ring) | 15 mm (O.D.) | Stainless Steel |
| GZR16/10S71 | Male 24° Cone (with O-Ring) | 16 mm (O.D.) | Stainless Steel |
| GZR16/12S71 | Male 24° Cone (with O-Ring) | 16 mm (O.D.) | Stainless Steel |
| GZR16S/15L71 | Male 24° Cone (with O-Ring) | 16 mm (O.D.) | Stainless Steel |
| GZR18/10L71 | Male 24° Cone (with O-Ring) | 18 mm (O.D.) | Stainless Steel |
| GZR18/12L71 | Male 24° Cone (with O-Ring) | 18 mm (O.D.) | Stainless Steel |
| GZR18/15L71 | Male 24° Cone (with O-Ring) | 18 mm (O.D.) | Stainless Steel |
| GZR18L/16S71 | Male 24° Cone (with O-Ring) | 18 mm (O.D.) | Stainless Steel |
| GZR20/12S71 | Male 24° Cone (with O-Ring) | 20 mm (O.D.) | Stainless Steel |
| GZR20/16S71 | Male 24° Cone (with O-Ring) | 20 mm (O.D.) | Stainless Steel |
| GZR20S/18L71 | Male 24° Cone (with O-Ring) | 20 mm (O.D.) | Stainless Steel |
| GZR22/12L71 | Male 24° Cone (with O-Ring) | 22 mm (O.D.) | Stainless Steel |
| GZR22/15L71 | Male 24° Cone (with O-Ring) | 22 mm (O.D.) | Stainless Steel |
| GZR22/18L71 | Male 24° Cone (with O-Ring) | 22 mm (O.D.) | Stainless Steel |
| GZR22L/20S71 | Male 24° Cone (with O-Ring) | 22 mm (O.D.) | Stainless Steel |
| GZR25/16S71 | Male 24° Cone (with O-Ring) | 25 mm (O.D.) | Stainless Steel |
| GZR25/20S71 | Male 24° Cone (with O-Ring) | 25 mm (O.D.) | Stainless Steel |
| GZR25S/22L71 | Male 24° Cone (with O-Ring) | 25 mm (O.D.) | Stainless Steel |
| GZR28/15L71 | Male 24° Cone (with O-Ring) | 28 mm (O.D.) | Stainless Steel |
| GZR28/18L71 | Male 24° Cone (with O-Ring) | 28 mm (O.D.) | Stainless Steel |
| GZR28/22L71 | Male 24° Cone (with O-Ring) | 28 mm (O.D.) | Stainless Steel |
| GZR28L/25S71 | Male 24° Cone (with O-Ring) | 28 mm (O.D.) | Stainless Steel |
| GZR30/16S71 | Male 24° Cone (with O-Ring) | 30 mm (O.D.) | Stainless Steel |
| GZR30/20S71 | Male 24° Cone (with O-Ring) | 30 mm (O.D.) | Stainless Steel |
| GZR30/25S71 | Male 24° Cone (with O-Ring) | 30 mm (O.D.) | Stainless Steel |
| GZR35/18L71 | Male 24° Cone (with O-Ring) | 35 mm (O.D.) | Stainless Steel |
| GZR35/22L71 | Male 24° Cone (with O-Ring) | 35 mm (O.D.) | Stainless Steel |
| GZR35/28L71 | Male 24° Cone (with O-Ring) | 35 mm (O.D.) | Stainless Steel |
| GZR38/25S71 | Male 24° Cone (with O-Ring) | 38 mm (O.D.) | Stainless Steel |
| GZR38/30S71 | Male 24° Cone (with O-Ring) | 38 mm (O.D.) | Stainless Steel |
| GZR42/22L71 | Male 24° Cone (with O-Ring) | 42 mm (O.D.) | Stainless Steel |
| GZR42/28L71 | Male 24° Cone (with O-Ring) | 42 mm (O.D.) | Stainless Steel |
| GZR42/35L71 | Male 24° Cone (with O-Ring) | 42 mm (O.D.) | Stainless Steel |
| GZR42L/38S71 | Male 24° Cone (with O-Ring) | 42 mm (O.D.) | Stainless Steel |
| GZR30S/28L71 | Male 24° Cone (with O-Ring) | 30 mm (O.D) | Stainless Steel |
| GZR08/06SCF | Male 24° Cone (with O-Ring) | 8 mm (O.D.) | Steel |
| GZR10/06SCF | Male 24° Cone (with O-Ring) | 10 mm (O.D.) | Steel |
| GZR10/08SCF | Male 24° Cone (with O-Ring) | 10 mm (O.D.) | Steel |
| GZR12/06SCF | Male 24° Cone (with O-Ring) | 12 mm (O.D.) | Steel |
| GZR12/08SCF | Male 24° Cone (with O-Ring) | 12 mm (O.D.) | Steel |
| GZR12/10SCF | Male 24° Cone (with O-Ring) | 12 mm (O.D.) | Steel |
| GZR16/10SCF | Male 24° Cone (with O-Ring) | 16 mm (O.D.) | Steel |
| GZR16/12SCF | Male 24° Cone (with O-Ring) | 16 mm (O.D.) | Steel |
| GZR16S/15LCF | Male 24° Cone (with O-Ring) | 16 mm (O.D.) | Steel |
| GZR20/12SCF | Male 24° Cone (with O-Ring) | 20 mm (O.D.) | Steel |
| GZR20/16SCF | Male 24° Cone (with O-Ring) | 20 mm (O.D.) | Steel |
| GZR20S/18LCF | Male 24° Cone (with O-Ring) | 20 mm (O.D.) | Steel |
| GZR25/16SCF | Male 24° Cone (with O-Ring) | 25 mm (O.D.) | Steel |
| GZR25S/22LCF | Male 24° Cone (with O-Ring) | 25 mm (O.D.) | Steel |
| GZR30/16SCF | Male 24° Cone (with O-Ring) | 30 mm (O.D.) | Steel |
| GZR30/20SCF | Male 24° Cone (with O-Ring) | 30 mm (O.D.) | Steel |
| GZR30/25SCF | Male 24° Cone (with O-Ring) | 30 mm (O.D.) | Steel |
| GZR30S/28LCF | Male 24° Cone (with O-Ring) | 30 mm (O.D.) | Steel |
| GZR38/20SCF | Male 24° Cone (with O-Ring) | 38 mm (O.D.) | Steel |
| GZR38/25SCF | Male 24° Cone (with O-Ring) | 38 mm (O.D.) | Steel |
| GZR38/30SCF | Male 24° Cone (with O-Ring) | 38 mm (O.D.) | Steel |
| GZR38S/35LCF | Male 24° Cone (with O-Ring) | 38 mm (O.D.) | Steel |
| GZ06LCF | Male 24° Cone (with O-Ring) | 6 mm (O.D.) | Steel |
| GZ08LCF | Male 24° Cone (with O-Ring) | 8 mm (O.D.) | Steel |
| GZ10LCF | Male 24° Cone (with O-Ring) | 10 mm (O.D.) | Steel |
| GZ12LCF | Male 24° Cone (with O-Ring) | 12 mm (O.D.) | Steel |
| GZ15LCF | Male 24° Cone (with O-Ring) | 15 mm (O.D.) | Steel |
| GZ18LCF | Male 24° Cone (with O-Ring) | 18 mm (O.D.) | Steel |
| GZ22LCF | Male 24° Cone (with O-Ring) | 22 mm (O.D.) | Steel |
| GZ28LCF | Male 24° Cone (with O-Ring) | 28 mm (O.D.) | Steel |
| GZ35LCF | Male 24° Cone (with O-Ring) | 35 mm (O.D.) | Steel |
| GZ42LCF | Male 24° Cone (with O-Ring) | 42 mm (O.D.) | Steel |
| GZ06SCF | Male 24° Cone (with O-Ring) | 6 mm (O.D.) | Steel |
| GZ08SCF | Male 24° Cone (with O-Ring) | 8 mm (O.D.) | Steel |
| GZ10SCF | Male 24° Cone (with O-Ring) | 10 mm (O.D.) | Steel |
| GZ12SCF | Male 24° Cone (with O-Ring) | 12 mm (O.D.) | Steel |
| GZ16SCF | Male 24° Cone (with O-Ring) | 16 mm (O.D.) | Steel |
| GZ20SCF | Male 24° Cone (with O-Ring) | 20 mm (O.D.) | Steel |
| GZ25SCF | Male 24° Cone (with O-Ring) | 25 mm (O.D.) | Steel |
| GZ30SCF | Male 24° Cone (with O-Ring) | 30 mm (O.D.) | Steel |
| GZ38SCF | Male 24° Cone (with O-Ring) | 38 mm (O.D.) | Steel |
| GZR06L/06SCF | Male 24° Cone (with O-Ring) | 6 mm (O.D.) | Steel |
| GZR08/06LCF | Male 24° Cone (with O-Ring) | 8 mm (O.D.) | Steel |
| GZR08L/08SCF | Male 24° Cone (with O-Ring) | 8 mm (O.D.) | Steel |
| GZR10/08LCF | Male 24° Cone (with O-Ring) | 10 mm (O.D.) | Steel |
| GZR10L/10SCF | Male 24° Cone (with O-Ring) | 10 mm (O.D.) | Steel |
| GZR12/06LCF | Male 24° Cone (with O-Ring) | 12 mm (O.D.) | Steel |
| GZR12/08LCF | Male 24° Cone (with O-Ring) | 12 mm (O.D.) | Steel |
| GZR12/10LCF | Male 24° Cone (with O-Ring) | 12 mm (O.D.) | Steel |
| GZR15/08LCF | Male 24° Cone (with O-Ring) | 15 mm (O.D.) | Steel |
| GZR15/10LCF | Male 24° Cone (with O-Ring) | 15 mm (O.D.) | Steel |
| GZR15/12LCF | Male 24° Cone (with O-Ring) | 15 mm (O.D.) | Steel |
| GZR18/10LCF | Male 24° Cone (with O-Ring) | 18 mm (O.D.) | Steel |
| GZR18/12LCF | Male 24° Cone (with O-Ring) | 18 mm (O.D.) | Steel |
| GZR18/15LCF | Male 24° Cone (with O-Ring) | 18 mm (O.D.) | Steel |
| GZR18L/16SCF | Male 24° Cone (with O-Ring) | 18 mm (O.D.) | Steel |
| GZR22/12LCF | Male 24° Cone (with O-Ring) | 22 mm (O.D.) | Steel |
| GZR22/15LCF | Male 24° Cone (with O-Ring) | 22 mm (O.D.) | Steel |
| GZR22/18LCF | Male 24° Cone (with O-Ring) | 22 mm (O.D.) | Steel |
| GZR22L/20SCF | Male 24° Cone (with O-Ring) | 22 mm (O.D.) | Steel |
| GZR28/15LCF | Male 24° Cone (with O-Ring) | 28 mm (O.D.) | Steel |
| GZR28/18LCF | Male 24° Cone (with O-Ring) | 28 mm (O.D.) | Steel |
| GZR28/22LCF | Male 24° Cone (with O-Ring) | 28 mm (O.D.) | Steel |
| GZR28L/25SCF | Male 24° Cone (with O-Ring) | 28 mm (O.D.) | Steel |
| GZR35/18LCF | Male 24° Cone (with O-Ring) | 35 mm (O.D.) | Steel |
| GZR35/22LCF | Male 24° Cone (with O-Ring) | 35 mm (O.D.) | Steel |
| GZR35/28LCF | Male 24° Cone (with O-Ring) | 35 mm (O.D.) | Steel |
| GZR42/22LCF | Male 24° Cone (with O-Ring) | 42 mm (O.D.) | Steel |
| GZR42/28LCF | Male 24° Cone (with O-Ring) | 42 mm (O.D.) | Steel |
| GZR42/35LCF | Male 24° Cone (with O-Ring) | 42 mm (O.D.) | Steel |
| GZR42L/38SCF | Male 24° Cone (with O-Ring) | 42 mm (O.D.) | Steel |
| GZR10/06LCF | Male 24° Cone (with O-Ring) | 10 mm (O.D.) | Steel |
| GZR12L/10SCF | Male 24° Cone (with O-Ring) | 12 mm (O.D.) | Steel |
| GZR12L/12SCF | Male 24° Cone (with O-Ring) | 12 mm (O.D.) | Steel |
| GZR12S/08LCF | Male 24° Cone (with O-Ring) | 12 mm (O.D.) | Steel |
| GZR14/12SCF | Male 24° Cone (with O-Ring) | 14 mm (O.D.) | Steel |
| GZR15L/12SCF | Male 24° Cone (with O-Ring) | 15 mm (O.D.) | Steel |
| GZR16S/12LCF | Male 24° Cone (with O-Ring) | 16 mm (O.D.) | Steel |
| GZR25/20SCF | Male 24° Cone (with O-Ring) | 25 mm (O.D.) | Steel |
| GZR35L/30SCF | Male 24° Cone (with O-Ring) | 35 mm (O.D.) | Steel |
