What is the effective orifice size of 3R310-10 / 4R310-10?

Effective orifice is 25.0 mm with Cv value of 1.39.

What is the effective orifice size of 3R410-15 / 4R410-15?

Effective orifice is 30.0-50.0 mm with Cv value of 1.67-2.79.

Does the 3R/4R series require lubrication?

No, lubrication is not required. The sliding spool design operates reliably without oil.

3r210-08 4r210-08 Hand Pull Valve Manual Pneumatic Valve 2 Position 3 Way 5 Way

Name: 3r210-08 4r210-08 Hand Pull Valve Manual Pneumatic Valve 2 Position 3 Way 5 Way
Brand: Hangzhou Fuyang Waal Precision Machinery Co., Ltd
SKU: 2167924942

Zhejiang, ChinaHangzhou Fuyang Waal Precision Machinery Co., Ltd

US$13.00

1-9 Pieces

US$9.00

10-49 Pieces

US$7.00

50+ Pieces

Sample price:US$20.00/piece.Request sample

Product profile

Customization

Available

Media

Air (Filtered Through 40μm Element)

Temperature

-5 to 60°C

Model NO.

3R210-08

Actuator

Manual (Hand Lever Operated)

Connection Form

Threaded

Type

3/2 Way (3r) / 5/2 Way (4r)

Material

Aluminum Alloy

Pressure

0-1.0 MPa

Valve Structure

Sliding Spool, NBR Seal

Power Supply

Manual (No Power Required)

Usage

Flow Control, Directional Control

Standard

ISO / CE

Application

Industrial Usage, Hazardous Environment

Valve Type

3/2 Way (3r) / 5/2 Way (4r) Manual Hand Pull Valve

Operation

Hand Pull / Hand Draw

Lubrication

Not Required

Proof Pressure

1.5 MPa

Transport Package

Standard Export Carton

Specification

M5, G1/8, G1/4, G3/8, G1/2; Cv 0.67-2.79

Trademark

WAAL

Origin

China

Key features

Manual pull operation with smooth actuation, accurate and reliable positioning

3R series: 3/2 way (3 port 2 position) for single acting cylinder control.

4R series: 5/2 way (5 port 2 position) for double acting cylinder control.

Sliding spool structure with good sealing performance, compact and lightweight.

Lubrication-free operation - no oil required, reducing maintenance costs.

Panel mounting support for easy and flexible installation.

Operating pressure range 0-1.0 MPa (0-145 psi).

Available port sizes: M5, G1/8, G1/4, G3/8, G1/2. Thread types: G, PT, NPT.

Aluminum alloy body with NBR seals for durability and reliability.

Wide operating temperature range -5 to 60.

Company profile

ODM Services

Hangzhou Fuyang Waal Precision Machinery Co., Ltd

Zhejiang, China

Business Type: Manufacturer/Factory CertifiedR&D Capacity: ODM Service Available CertifiedCustomization Options: Customization from Samples CertifiedExport Year: 1 year CertifiedNearest Port: Ningbo PortAverage Response Time: ≤1.68h

AI-Powered supplier vetting

SummaryWAALPC is a limited company and national high-tech enterprise specializing in pneumatic components, including air-source treatment products, solenoid valves, and pneumatic fittings. It integrates product development, design, production, sales, brand operation, and after-sales service, with stated export coverage exceeding 40 countries and regions. Evidence supports customization from samples, raw-material traceability, CE certification, 100% finished-product inspection, and stated peak- and off-season lead times within 15 workdays. However, service and complaint-handling procedures lack written records, quality-control staffing is limited to one inspector, and no usable SDK is available. Financial information is represented only by years rather than substantive financial metrics, so financial credibility cannot be assessed. Customer-specific cases are not provided.

Supplier typeWAALPC is identified as a national high-tech enterprise and limited company focused on researching, developing, and producing pneumatic components. Its stated product scope covers pneumatics, air-source treatment, solenoid valves, and pneumatic fittings, with integrated sales and after-sales operations.

CertificationsThe supplier is reported to hold CE product certification. This is explicit evidence of certification capability, although no broader certification portfolio is provided.

After-Sales capabilityWAALPC states that it provides after-sales service and overseas equipment installation, with service quotations accepted on FOB/CIF terms and service payment terms of LC/T/T. However, the service-capability procedure and complaint-handling procedure have no written records, and the corrective/preventive-action mechanism also lacks written records.

R&D capabilityThe company describes itself as a national high-tech enterprise with research, development, design, technical resources, advanced machinery, testing facilities, and a continuous innovation policy. However, no usable SDK is available, and the supplied information does not provide concrete innovation outputs or measurable R&D results.

Production capacityWAALPC reports advanced processing equipment, complete testing facilities, 100% finished-product inspection, raw-material traceability, and stated average lead times within 15 workdays in both peak and off-season periods. Its product range and export activity further support operational capability, although only one quality assurance/control inspector is reported.

Customization capabilityThe supplier explicitly states that it can customize products and provide professional solutions, and its design-service capability is identified as customization from samples. This directly supports the ability to adapt products to customer requirements.

Product Q&A

Q:What is the difference between 3R series and 4R series hand pull valves?

3R series are 3/2 way (3 ports, 2 positions) for single acting cylinder control. 4R series are 5/2 way (5 ports, 2 positions) for double acting cylinder control.

Q:What is the operating pressure range of 3R/4R series?

Operating pressure range is 0-1.0 MPa (0-145 psi). Maximum proof pressure is 1.5 MPa.

Q:What is the operating temperature range?

Operating temperature range is -5 to 60.

Q:What are the available port sizes for 3R/4R series?

3R110-06 / 4R110-06: M5 or G1/8; 3R210-08 / 4R210-08: G1/4; 3R310-10 / 4R310-10: G3/8; 3R410-15 / 4R410-15: G1/2.

Q:What is the effective orifice size of 3R210-08 / 4R210-08?

Effective orifice is 16.0 mm with Cv value of 0.89.