Overview

This document provides detailed technical specifications, dimensions, materials, connection types, and ordering codes for the BKH and BKHP500 series of two-way steel ball valves. These valves are designed for various industrial applications requiring reliable flow control with multiple connection standards and sizes.

1. Product Description

The BKH / BKHP500 series are two-way ball valves made of steel, available in nominal sizes DN4 to DN25 (1/8" to 1"). They feature female and male threaded connections compliant with multiple standards including DIN ISO 228, ANSI B1.20.1 NPT, DIN 2353/ISO 8434-1 (light and heavy series), ISO 7/1 Rc, ISO 8434-3 ORFS, and SAE J514/ISO/DIS11926-1. Custom connections are available upon request.

2. Materials and Temperature Range

• Body, Ball, Stem: Steel (two material codes: 112A and 1128)
• Ball seats: POM (Polyoxymethylene)
• O-rings: NBR (Nitrile Butadiene Rubber) or FPM (Fluorocarbon)
• Operating Temperature Range: -20°C to 100°C

3. Dimensions and Weights

The document provides comprehensive dimensional data for each valve size and connection type, including parameters such as:

• Type designation
• Nominal diameter (DN)
• Dimensions: LW, L, d, RA, H, H1, H2, SW, K, m, V
• Weight in kilograms
• Lever material (Zn for zinc, Al for aluminum)

Dimensions vary depending on connection type (e.g., DIN ISO 228 female thread, ANSI NPT female thread, DIN 2353/ISO 8434-1 light and heavy series, ISO 7/1 Rc female thread, ISO 8434-3 ORFS male thread, SAE J514/ISO/DIS11926-1 female thread).

4. Connection Types and Standards

The valves support multiple connection standards, each with specific dimensional and pressure ratings:

• DIN ISO 228 Female Thread
• ANSI B1.20.1 NPT Female Thread
• DIN 2353 / ISO 8434-1 Light and Heavy Series
• ISO 7/1 Rc Female Thread
• ISO 8434-3 ORFS Male Thread
• SAE J514 / ISO/DIS11926-1 Female Thread

Each connection type includes detailed ordering codes, dimensions, and weights for each valve size.

5. Pressure Ratings

The valves are rated for pressures up to 500 bar depending on the material and connection type. Specific pressure ratings are provided per valve size and connection standard, with some variations (e.g., 350 bar, 420 bar) depending on the series and connection.

6. Accessories and Options

Available accessories on request include:

• Locking devices
• Actuators
• Mounting holes
• Position switches
• Combination options
• Detent mechanisms

7. Assembly and Mounting

The valves feature assembling threads and holes compliant with ISO 5211 standards for actuator mounting. Detailed dimensions for assembling threads (e.g., SW, LK, g, t1, w) and assembling holes (a, g, t) are provided for each nominal diameter. Note that some angles (e.g., 30°) do not correspond exactly to ISO 5211.

8. Ordering Information

Ordering codes are provided for each valve size and connection type, including material code references (112A, 1128). The document notes that many articles are usually in stock and highlights the importance of considering pressure ratings for tube connections.

Critical Information Summary

• Valve sizes: DN4 to DN25 (1/8" to 1")
• Materials: Steel body, ball, stem; POM seats; NBR or FPM O-rings
• Operating temperature: -20°C to 100°C
• Pressure ratings: Up to 500 bar depending on configuration
• Multiple connection standards supported
• Accessories available for enhanced functionality
• ISO 5211 compliant mounting for actuators

This comprehensive technical data supports selection, ordering, and installation of BKH / BKHP500 two-way steel ball valves across various industrial applications.