Product Overview

The document describes the Z 6 R series check valves, which have an approximate weight of 1 kg. The valves are designed for hydraulic applications with a maximum working pressure of 350 bar.

Dimensions and Sealing

The valves have specific sealing surfaces with dimensions provided (e.g., 45 mm, 66 mm, 40 mm). The sealing components include various O-rings made of NBR 90 Shore with specified sizes (e.g., 17.96 x 2.62 mm, 10.82 x 1.78 mm, 8.74 x 1.78 mm) and back-up rings to ensure proper sealing and durability.

Valve Variants and Flow Paths

The Z 6 R check valves come in different variants identified by suffixes such as -T, -A, -B, and -P, indicating the line in which the valve is effective (e.g., line T or line B). The document includes sectional drawings illustrating the valve's position and sealing kit.

Performance Characteristics

A performance curve is provided showing the relationship between flow rate (Q in liters per minute) and pressure (p in bar) at free flow through the check valve. The data is based on oil with a viscosity of 24 cSt and a temperature of 50°C, which are typical operating conditions for hydraulic fluids.

Component List

The components are allocated depending on the valve variant (e.g., Z 6 R - A, - B, - P, - T).

Key Specifications and Recommendations

• Maximum operating pressure: 350 bar
• Oil viscosity for performance data: 24 cSt
• Oil temperature for performance data: 50°C
• Valve weight: approx. 1 kg

The document emphasizes correct sealing and valve positioning to ensure proper function in hydraulic circuits.