Hydronex / Threaded Couplers
SERIES
Thread Locked Type Hydraulic Couplings(Steel) Kvs Series

Threaded Couplers

Thread Locked Type Hydraulic Couplings(Steel) Kvs Series

The KVS Series Thread Locked Type Hydraulic Couplings feature a robust steel construction with precision-knurled barrel coupler body for positive grip. Designed for high-cycle industrial applications, the KVS series delivers reliable thread-locked performance with excellent pressure and temperature resistance.

Material
Carbon Steel

Surface finish
Zinc Plated / Phosphated

Application
Industrial machinery, hydraulic systems, manufacturing equipment

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Technical Data

Body Size (in)

Specifications

1/4", 3/8", 1/2", 3/4", 1"

Rated Pressure (Bar)

350, 300, 300, 250, 250

Key Features

Connexion by screwing together the two parts

Disconnexion by unscrewing the two parts

Shut off by poppet valve

Connectable under residual pressure

Disconnexion under residual pressure

Interchangeability according to Faster Internal Standards

Specifications

Standard

ISO 7241-2

Body Material

Carbon Steel

Seal Material

NBR

Surface Treatment

Zinc Plated

Technical Specifications

  • High grade carbon steel tempered or carbonitride for specific stressed area
  • NBR
  • Backup ring in PTFE
  • -25°C to +125°C (-13°F to +257°F)
  • According to ISO 7241-2

Applications

Nipple Female Thread / Male

Nipple Female Thread / Male Diagram
Part No.Thread SizeOverall Length (mm)Hex Size (mm)Largest Diameter (mm)Part No.Thread SizeOverall Length (inch)Hex Size (inch)Largest Diameter (inch)
KVS-02PFG1/4432514.1KVS-N02PFNPT1/41.690.980.56
KVS-03PFG3/8483218.9KVS-N03PFNPT3/81.891.260.74
KVS-04PFG1/2533420.5KVS-N04PFNPT1/22.091.340.81
KVS-06PFG3/4634627.9KVS-N06PFNPT3/42.41.811.1
KVS-08PFG1725031.3KVS-N08PFNPT12.831.971.23
KVS-10PFG1 1/4866543.9KVS-N10PFNPT1 1/43.392.561.73
KVS-12PFG1 1/2958053.4KVS-N12PFNPT1 1/23.743.152.1
KVS-16PFG211811081.9KVS-N16PFNPT24.654.333.22

Couplers Female Thread / Female

Couplers Female Thread / Female Diagram
Part No.ThreadOverall Length (mm)Hex Size (mm)Largest Diameter (mm)Part No.ThreadOverall Length (in.)Hex Size (in.)Largest Diameter (in.)
KVS-02SFG1/4682230KVS-N02SFNPT1/42.680.871.18
KVS-03SFG3/8763040KVS-N03SFNPT3/82.991.181.57
KVS-04SFG1/2873445KVS-N04SFNPT1/23.431.341.77
KVS-06SFG3/41064155KVS-N06SFNPT3/44.171.612.17
KVS-08SFG11245060KVS-N08SFNPT14.881.972.36
KVS-10SFG1 1/41536580KVS-N10SFNPT1 1/46.022.563.15
KVS-12SFG1 1/21727598KVS-N12SFNPT1 1/26.772.953.86
KVS-16SFG2207100129KVS-N16SFNPT28.153.945.08

Specification Details

Body Size (in)Rated Pressure (Bar)Flow Rate (L)MaterialStandard Seal MaterialTemperature Range (°C)
1/4"8008Carbon SteelNBR (other materials available on request)-20°C to +125°C
3/8"80018Carbon SteelNBR (other materials available on request)-20°C to +125°C
1/2"73040Carbon SteelNBR (other materials available on request)-20°C to +125°C
3/4"73055Carbon SteelNBR (other materials available on request)-20°C to +125°C
1"630100Carbon SteelNBR (other materials available on request)-20°C to +125°C
1-1/4"600140Carbon SteelNBR (other materials available on request)-20°C to +125°C
1-1/2"400300Carbon SteelNBR (other materials available on request)-20°C to +125°C
2"3501000Carbon SteelNBR (other materials available on request)-20°C to +125°C

Dust Protection

Dust protections - 防尘帽Dust protections - 防尘帽
PVCAluminumPVCAluminum
mminchPart NumberColourPart NumberPart NumberColourPart Number
6.31/4CVS-1/4CVS-1/4SPVS-1/4PVS-1/4S
103/8CVS-3/8CVS-3/8SPVS-3/8PVS-3/8S
12.51/2CVS-1/2CVS-1/2SPVS-1/2PVS-1/2S
203/4CVS-3/4CVS-3/4SPVS-3/4PVS-3/4S
251CVS-1CVS-1SPVS-1PVS-1S
321 1/4CVS-1 1/4CVS-1 1/4SPVS-1 1/4PVS-1 1/4S
401 1/2CVS-1 1/2CVS-1 1/2SPVS-1 1/2PVS-1 1/2S
502CVS-2CVS-2SPVS-2PVS-2S

Performance Specifications

Size (mm)Size (in.)Working Pressure (MPa/PSI)Flow Rate (l/min / GPM)Burst Pressure 1 (MPa/PSI)Burst Pressure 2 (MPa/PSI)Burst Pressure 3 (MPa/PSI)
6.31/4"80 (11600)8 (2.1)240 (34800)240 (34800)250 (36300)
103/8"80 (11600)18 (4.7)350 (50000)340 (49300)240 (34800)
12.51/2"73 (10600)40 (10.6)220 (31900)220 (31900)220 (31900)
203/4"73 (10600)55 (14.7)220 (31900)230 (33400)230 (33400)
251"63 (9150)100 (26)240 (34800)190 (27600)190 (27600)
321 1/4"60 (8700)140 (37)180 (26100)180 (26100)200 (29000)
401 1/2"40 (5800)300 (79)150 (21800)120 (17100)150 (21800)
502"35 (5000)1000 (264)130 (18600)130 (18600)105 (15250)

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