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Check Valve Rexroth Interchangeable

Type S Check Valve

MANUFACTURER Genuine Huade Hydraulic
STANDARDS ISO 4401 / DIN 24340
AVAILABILITY Factory Direct Stock
Type S Check Valve
Type S Check Valve - Image 2
TECHNICAL REPLACEMENT NOTICE

This Huade® directional control valve serves as a 100% direct drop-in replacement for Bosch Rexroth TYPE-S-CHECK-VALVE equivalents. Dimensions, mounting interfaces, and technical parameters are identical. Designed for cost reduction in industrial and mobile hydraulic systems.

• Product features: Threaded connection, leakage-free blocking, various cracking pressures available
• Specifications: Size 6-30, max pressure 31.5MPa, flow up to 450L/min
• Applications: Pump outlet back pressure valve, bypass valve for industrial hydraulic systems

Request B2B Quote

Submit your target quantity and technical questions. Our hydraulic engineering team will provide a factory-direct quote and lead time estimate within 24 hours.

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100% Genuine Huade Direct factory authorized supply
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ISO 4401 Mounting ISO 4401 / Rexroth interchangeable
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Secure Packaging Sealed rust-proof global shipping

Technical Data Sheet

  • Product Overview
  • Features & Applications
  • Technical Parameters

Product Overview

Established through a strategic partnership between the Chinese and German governments in 1979, Huade has incorporated cutting-edge technology from Rexroth. Huade brand high-quality type S check valve can replace Rexroth products of the same series. This type S check valve is widely applicable to various types of hydraulic devices. S…A series is pipe type check valve, which can use in high pressure environment. The factory has passed ISO9001,ISO14001, and ISO45001. Huade brand directional valves are widely used in engineering and construction machinery, metallurgy, machine tools, environmental protection, shipbuilding, aerospace, rail transit, petroleum and petrochemical, military industry and other fields. This is a reliable brand in China.

Pressure fluid temperature range（℃）

Viscosity range                          (mm2/s)

Max.operating pressure              (Mpa)

Cracking pressure                      (Mpa)

Maximum flow                          (L/min)

Key Features

  • For threaded connection(screw-in threaded)
  • Leakage-free blocking in one direction
  • Various cracking pressure, optional

Industrial Applications

  • The type S check valve has 7 sizes from size6 to size 30. It has the task of, preferably closing a flow leak free in one direction and to permit free flow in the opposite direction. The stroke of the poppet, which is guided on its outside diameter, is limited by a mechanical stop. The built-in compression spring supports the closing movement. Furthermore the compression spring holds the poppet in the closed position even when there is no flow through the valve.
  • Symbol
  • Structure diagram

Technical Parameters

Mechanical ratings and operating limits for the Type S Check Valve:

Parameter / Dimension Name Value / Rating Specification
Pressure fluid mineral oils or phosphate ester
Pressure fluid temperature range（℃） -30～+80
Viscosity range                          (mm2/s) 2.8~500
Max.operating pressure              (Mpa) 31.5
Cracking pressure                      (Mpa) See characteristic curves
Maximum flow                          (L/min) up to 450L/min

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