Hydronex / Push-and-Pull Couplers
STEEL
KZAV Series (Steel)

Push-and-Pull Couplers

KZAV Series (Steel)

High-performance carbon steel push-and-pull quick couplers with heat-treated wear parts. Rated for 250 Bar with NBR seals and PTFE backup rings. Features reliable poppet valve closure and breakaway function according to ISO 5675. Enhanced valve response and seal integrity for demanding applications.

Material
Carbon Steel with heat treated wear parts

Surface finish
Standard

Application
Heavy-duty hydraulic systems, industrial machinery, specialized hydraulic equipment, push-pull applications requiring 250 Bar rated pressure

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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 pushing the male coupling

Disconnection by pulling the male part

Shut off by poppet valve

Connectable with male part (ISO A) under pressure

Breakaway function according to ISO 5675 specifications

Interchangeability according to ISO7241-1 part A

Specifications

Body Size

1/2"

Rated Pressure

250 Bar

Material

Carbon Steel

Standard Seal Material

NBR (other materials available on request)

Temperature Range

-20°C to +125°C

Technical Specifications

  • High grade carbon steel with heat treated wear parts
  • NBR
  • Backup ring in PTFE
  • -25°C to +125°C (-13°F to +257°F)
  • According to ISO 7241-2

Applications

KZAV Female Coupler Diagram

Female

Part No.ThreadOverall Length (mm)Hex Size (mm)Largest Diameter (mm)
KZAV-GO4SFG1/2107.32738
KZAV-NO4SFNPT1/2107.32738
KZAV-UO4SF3/4UNF107.32738
KZAV-M22SFM22X1.5107.33238
KZAV-U178S7/8UNF1103238
KZAV-GO4SFG1/24.221.061.5
KZAV-NO4SFNPT1/24.221.060.5
KZAV-UO4SF3/4UNF4.221.061.5
KZAV-M22SFM22X1.54.481.261.5
KZAV-U178SF7/8UNF4.481.261.5

Performance Specifications

@ 0.2 MPa pressure drop

SizeWorking PressureFlow RateBurst Pressures
mminchMPa (PSI)L/min (GPM)MPa (PSI)MPa (PSI)MPa (PSI)
12.51/2"25 (3625)68 (18)120 (17100)100 (14500)105 (15250)

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