DSE3-A04/11N-D24K1

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Ningbo Hengnuo Hydraulic Drive Co.,Ltd

3 year

Product details

1. Model Breakdown & Brand Specifications

• Official Model:

DUPLOMATIC PST6/21N-K1/K

(Proportional directional control valve manufactured by DUPLOMATIC S.p.A., Italy)

• Brand Consistency:

Use"DUPLOMATIC"(all uppercase, no spaces), matching the official trademark.

• Model Structure:

• PST6: Series code (Proportional directional valve, Size 6)

• 21N: Function code (2-position 4-way, neutral position: P→A/B, T port blocked)

• K1/K: Electrical interface & feedback type (K1 = Position sensor feedback, K = Analog control)

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2. Key Technical Parameters

【表格】

Parameter Details

Valve Type Proportional directional control valve

Port Size 6 mm (NG6/CETOP 3 standard)

Function 2-position 4-way (2/4 Way), Neutral: P→A/B, T blocked

Flow Range Max. rated flow: 40 L/min (@Δp=5 bar)

Pressure Range Max. operating pressure: 350 bar (35 MPa)

Control Method Analog control (K type): 0...±10 VDC or 4...20 mA

Feedback Type Integrated position sensor (K1 type): LVDT or Hall-effect, output 0...±10 VDC

Response Time Rise time: ≤15 ms (@50% signal step)

Leakage Internal leakage: ≤50 ml/min (@350 bar)

Weight Approx. 1.2 kg

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3. Technical Standards & Certifications

• International Standards:

• Compliant withISO 4401(Hydraulic valve mounting surfaces) andCETOP RP 121H(Proportional valve performance testing)

• Electrical interface:DIN EN 175301-803(M12×1 connector)

• Safety Certifications:

• CE Certified(Conforms to EU Machinery Directive 2006/42/EC)

• RoHS Compliant(Free of hazardous substances)

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4. Applications & Typical Systems

• Primary Applications:

• Plastic injection molding machines (Control hydraulic cylinder speed/direction)

• Die-casting machines (Proportional control of clamping/ejection)

• Construction machinery (Crane luffing mechanism proportional control)

• Metal rolling equipment (Tension control systems)

• System Matching Requirements:

• Requires proportional amplifier (e.g., DUPLOMATIC DA series)

• Recommended hydraulic oil: ISO VG46, NAS 1638 Class 9 (Anti-contamination)

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5. Selection & Alternative Solutions

• Original Part Procurement:

【text】

Part Name: DUPLOMATIC Proportional Valve PST6/21N-K1/K

Part No.: PST6/21N-K1/K (Verify batch number when ordering)

Supplier: DUPLOMATIC S.p.A. or authorized distributors

• Alternative Part Considerations:

• Verify compatibility for:

• Port size (NG6) and mounting face dimensions

• Control signal type (voltage/current)

• Feedback signal matching

• Risk: Incompatibility may cause unstable control or valve damage.

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6. Installation & Commissioning Guide

• Installation Requirements:

1. Mounting surface flatness error ≤0.01 mm

2. Electrical connections: Note polarity (K type = analog input, K1 type = sensor output)

3. Hydraulic oil cleanliness: ≤ISO 4406 19/17

• Commissioning Steps:

1. Zero calibration: Set valve spool neutral via amplifier (typically 4 mA or 0 V)

2. Gain adjustment: Gradually increase signal to full range while monitoring system response

3. Deadband compensation: Eliminate insensitive zone at low control signals

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Ningbo Hengnuo Hydraulic Drive Co.,Ltd

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3 year

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