Dale Series CP, CX, LF, LX – B Model Inline Poppet Valves & Manifolds – Installation & Operating Instructions

Key Features

Metal Internals for Long Service Life

Dale Series B Model valves feature metal internal poppet components for superior wear resistance and long service life. This design ensures reliable seating performance under high-cycle conditions and in environments where air quality may not be perfectly controlled. The poppet construction with metal internals provides consistent flow characteristics throughout the product lifecycle.

Easy Field-Convertible External Pilot Supply

The Dale Series CP valves can be easily field-converted to external pilot supply by removing the existing pipe plug from port X-1 and installing a 10-32, 1/8-inch, M5, or G1/8-inch air supply to the X-1 port on the base manifold. This field-convertibility eliminates the need for valve replacement when system configurations change, reducing spare parts inventory and downtime. Note: Valves for vacuum service require an external pilot supply.

EN 175301-803 Electrical Connectors – Form A and Form C

Dale Series B Model valves support EN 175301-803 Form C connectors (CP/CX 2/2 and 3/2 sizes 1/4–1 inch; LF/LX sizes with 11/2–21/2 inch inlet use Form A). Pre-wired connector options are available for both 24 VDC and 120 VAC. Lighted connectors provide visual indication of solenoid energization for fast diagnostic checks. See the full electrical connector part number table in the official installation documentation.

Comprehensive Series Coverage: CP, CX, LF, LX

The Dale Series B Model encompasses four valve series: CP (2/2 and 3/2 normally closed and normally open, 1/4 to 21/2 inch inlet), CX (zero-leakage 2-way and 3-way for bypass or isolation in leak test circuits, vacuum or pressure on either port), LF (large flow, 2/2 except 3/8 and 1/2 inch inlet), and LX (additional flow configurations). This broad coverage allows system designers to select the optimal valve for each application within a single product family.

Technical Specifications

The following specifications are from the official ROSS Controls Dale Series CP, CX, LF, LX B Model Installation Instructions (Doc ID 75, SS050 B Model):

• Construction: Poppet with metal internals
• Mounting Type: Inline
• Solenoids: AC or DC power. Rated for continuous duty
• Standard Voltages: 120 volts AC, 50/60 Hz; 24 volts DC
• CP, CX 2/2 NC & NO (1/2 and 1 inch inlet), CP, CX 3/2 NC & NO (1/2 inch inlet): 3 VA on AC; 2.5 watts on DC
• CP, CX 2/2 (11/2 and 21/2 inch inlet), CP, CX 3/2 (1 inch inlet), LF/LX 2/2 (except 3/8 and 1/2 inch inlet): 36 VA inrush, 23 VA holding on AC; 15 watts on DC
• LF 2/2 (3/8 and 1/2 inch inlet): 9.8 VA on AC; 7.5 watts on DC
• Ambient Temperature: 40° to 120°F (4° to 50°C)
• Media Temperature: 40° to 175°F (4° to 80°C)
• Flow Media: Filtered air; for liquid applications, consult ROSS
• Solenoid Pilot Inlet Pressure: Vacuum to 145 psig (10.0 bar) – vacuum requires external pilot supply
• Pressure Controlled Inlet Pressure: Vacuum to 250 psig (17.2 bar)
• Pilot Pressure: Must be equal to or greater than inlet pressure
• External pilot supply ports: 10-32, 1/8-inch, M5, or G1/8-inch to port X-1

Applications

Leak Test and Precision Test Circuits

The Dale CX series zero-leakage construction makes B Model valves ideal for precision leak test circuits in automotive, aerospace, and medical device manufacturing. The CX valve can be used as a bypass valve or zero-leak isolation valve, and its stackable manifold can be ordered with normally open or normally closed valves on the same assembly for maximum test circuit flexibility.

Industrial Automation Directional Control

Dale Series CP, LF, and LX B Model valves serve standard directional control applications in industrial automation, providing reliable actuation for pneumatic cylinders, rotary actuators, and other pneumatic actuators across a wide range of port sizes and flow capacities.

Safety and Compliance Standards

Dale Series valves are not for press clutch/brake applications. Installation and maintenance require trained pneumatic personnel. Before service, disconnect electrical power, shut off air supply, and exhaust system pressure. Use a 5-micron air filter. For vacuum applications, always use an external pilot supply connected to port X-1.

Installation and Setup Guide

External Pilot Supply Conversion

To convert a Dale Series CP valve to external pilot supply in the field: remove the existing pipe plug from port X-1, then install a 10-32, 1/8-inch, M5, or G1/8-inch air supply line to the X-1 port on the base manifold. This conversion requires no special tools and can be completed during a normal maintenance window.

Electrical Connector Selection and Installation

Select the appropriate EN 175301-803 Form A or Form C electrical connector based on valve type, port size, and voltage requirement. Lighted connectors provide visual solenoid status indication. Pre-wired connectors simplify installation. Refer to the connector part number table in the official documentation for the correct part number for your application.

Pipe Installation and Air Line Preparation

Blow all air lines clean before installation. Install a 5-micron air filter close to the valve. Apply pipe thread sealant to male threads only (not tape) when installing pipe in valve ports. Do not restrict exhaust ports; use ROSS silencers for noise reduction.

Why Choose ROSS Controls

ROSS Controls has over 100 years of fluid power engineering expertise. The Dale Series B Model reflects ROSS's commitment to application flexibility through its field-convertible pilot design, comprehensive connector options, and broad series coverage. Full service kit support ensures cost-effective long-term maintenance.

Contact ROSS at 1-800-GET-ROSS or www.rosscontrols.com.

Download This Document

The official ROSS Controls Dale Series CP, CX, LF, LX B Model Installation Instructions (Doc ID 75, SS050 B Model) can be downloaded from the ROSS Controls document library.

PDF Download URL: https://ross-admin-global-us-east.s3.amazonaws.com/production/uploads/document_language_file/file/75/ROSS_Dale_Series_CP_CX_LF_LX_Model-B_Installation_Instructions_SS050_B_Model.pdf

Related Products and Resources

• Dale LT Series B Model Valve Manifolds – Leak test manifold for pressure decay, flow, and differential pressure testing
• Dale CP/CX/LF/LX A Model – Earlier model documentation for reference
• 27 Series Poppet Valves – Inline poppet valves with EEZ-ON® option
• 21 Series Poppet Valves – High and low temperature inline valves
• ROSS Silencers – Compatible exhaust silencers
• ROSS Service Kits – Replacement components for Dale Series B Model

Frequently Asked Questions

Q: How do I field-convert a Dale CP valve to external pilot supply?

A: Remove the existing pipe plug from port X-1, then install a 10-32, 1/8-inch, M5, or G1/8-inch air supply line to port X-1 on the base manifold. No special tools are required. Valves for vacuum service always require external pilot supply.

Q: What electrical connector standard do Dale Series B Model valves use?

A: Dale Series B Model CP and CX valves use EN 175301-803 Form C connectors (sizes 1/4 to 1 inch) and Form A connectors (sizes 11/2 to 21/2 inch). Both lighted and pre-wired versions are available for 24 VDC and 120 VAC.

Q: What is the difference between the CP and CX series in the Dale B Model?

A: The CP series provides standard 2/2 and 3/2 poppet valve directional control. The CX series features zero-leakage construction suitable for use as bypass or isolation valves in precision leak test circuits; the CX can accept vacuum or pressure on either port 1 or port 2.

Q: What inlet pressure range do Dale CP solenoid pilot valves support?

A: Solenoid pilot Dale CP valves support vacuum to 145 psig (10.0 bar) inlet pressure. Vacuum applications require external pilot supply. Pressure-controlled models support vacuum to 250 psig (17.2 bar).

Q: Can Dale LF/LX valves be used with liquid media?

A: For liquid applications, consult ROSS Controls before installation. Standard media is filtered air. ROSS Technical Services can advise on material compatibility and configuration requirements for liquid service.

Q: What are the solenoid power ratings for Dale CP/CX 2/2 valves with 11/2 and 21/2 inch inlet ports?

A: These models consume 36 VA inrush and 23 VA holding on AC, and 15 watts on DC. Smaller CP/CX 2/2 and 3/2 models with 1/2-inch inlet consume 3 VA on AC and 2.5 watts on DC.

Q: What temperature range does the Dale Series B Model support?

A: Ambient temperature is 40° to 120°F (4° to 50°C) and media temperature is 40° to 175°F (4° to 80°C). For applications outside these ranges, consult ROSS Controls.

Q: Where can I get service kits for Dale Series B Model valves?

A: Service kits are available from ROSS Controls and authorized distributors. Contact ROSS at 1-800-GET-ROSS or visit www.rosscontrols.com. Refer to the official installation document (Doc ID 75) for service kit part numbers.