DR.DP Series Direct Operated Pressure Reducing Hydraulic Valve

The DR.DP series direct-operated pressure-reducing hydraulic valve is a high-performance component designed to provide precise and efficient pressure control in hydraulic systems. With its direct-operated mechanism and exceptional functionality, this valve ensures accurate pressure reduction to match specific system requirements.

The DR.DP series direct-operated pressure-reducing hydraulic valve is a high-performance solution for precise pressure control in hydraulic systems. With its direct-operated design, precise pressure control, wide pressure range, and excellent flow capacity, this valve ensures efficient and accurate pressure reduction while protecting system components. Following the recommended usage methods and maintenance practices, the DR.DP series valve delivers reliable performance, extending the lifespan of hydraulic systems. Upgrade your hydraulic system with the DR.DP series direct-operated pressure-reducing hydraulic valve and experience optimal pressure control for enhanced system efficiency and productivity.

DR.DP Series Direct Operated Pressure Reducing Hydraulic Valve Key Characteristics:

• Direct-Operated Design:
  • The DR.DP series valve features a direct-operated design, allowing it to provide accurate pressure reduction in hydraulic systems.
  • It directly controls the flow of hydraulic fluid to regulate and stabilize the downstream pressure.
• Precise Pressure Control:
  • This valve offers exceptional precision in pressure control, ensuring the hydraulic system operates within desired pressure limits.
  • It maintains consistent pressure levels, preventing over-pressurization and protecting sensitive system components.
• Wide Pressure Range:
  • The DR.DP series valve is available in various pressure ranges, making it suitable for various hydraulic applications.
  • It allows customization to match specific system requirements and optimize performance.
• Flow Capacity:
  • This valve exhibits excellent flow capacity, allowing it to handle high flow rates without compromising pressure control accuracy.
  • It ensures efficient fluid regulation and uninterrupted system operation.

DR.DP Series Direct Operated Pressure Reducing Hydraulic Valve Parameter:

ZDB

Specifications			NG6		NG10		NG16		NG22
Fluid			Mineral oil suitable for NBR and FKM seal
			Phosphate ester for FKM seal
Fluid temperature range		℃	-30 to +80 (NBR seals )
			-20 to +80 (FKM seals )
Viscosity range		mm2/s	10 to 800
Degree of contamination			Maximum permissible degree of fluid contamination: Class 9. NAS 1638 or 20/18/15, ISO4406
Max. operating  pressure		bar	to  315
Max.adjustable pressure		bar	50; 100; 200; 315
Max. flow-rate		L/min	60		100		200		400
Weight		kg	ZDB6	Z2DB10	ZDB10	Z2DB10	ZDB16	Z2DB16	ZDB22	Z2DB22
			about 1.2	about 1.9	about 2.7	about 3.1	about 9.4	about 11.8	about 9.2	about 10.3

ZDBD

Fluid

Mineral oil suitable for NBR and FKM seal

Phosphate ester for FKM seal

Fluid temperature range

℃

-30 to +80 (NBR seals )

-20 to +80 (FKM seals )

Viscosity range

mm2/s

10 to 800

Degree of contamination

Maximum permissible degree of fluid contamination: Class 9. NAS 1638 or 20/18/15, ISO4406

Max. operating  pressure

bar

to  315

Max.adjustable pressure

bar

50; 100; 200; 315

Size

/

6

10

16

22

32

Max. flow-rate

L/min

30

80

160

250

Weight

Relief function

kg

A

B

C

D

A

B

C

D

A

B

C

D

A

B

C

D

A

B

C

D

2

3

4

4

6

9

13

16

12

25

32

29

47

55

57

53

DR.DP Series Direct Operated Pressure Reducing Hydraulic Valve Advantages:

NG5
• Direct structure
• Installation face follows DIN 24340 A and ISO 4401
• Five pressure ranges
• Two adjustment types: knob, adjustment screw with protection cap
• Optional one-directional valve
NG6
• Direct structure
• Installation face follows DIN 24340 A and ISO 4401
• Five pressure ranges
• Two adjustment types: knob, adjustment screw with protection cap
• With pressure gauge interface
• Optional one-directional valve
NG10
• Direct structure
• Installation face follows DIN 24340 A and ISO 4401
• Four pressure ranges
• Two adjustment types: knob, adjustment screw with protection cap
• With pressure gauge interface
• Optional one-directional valve

Usage Method Of DR.DP Series Direct Operated Pressure Reducing Hydraulic Valve:

1. System Analysis:
   • Conduct a comprehensive hydraulic system analysis to determine the specific pressure control requirements.
   • Consider maximum operating pressure, desired pressure range, and flow rates.
2. Valve Selection:
   • Select the appropriate DR.DP series hydraulic valve variant based on the system’s pressure control specifications.
   • Consider pressure rating, flow capacity, and compatibility with other system components.
3. Installation:
   • Follow the manufacturer’s instructions to correctly install the DR.DP series direct-operated pressure-reducing valve in the hydraulic system.
   • Ensure proper alignment and secure connection to prevent leaks and optimize performance.
4. Pressure Adjustment:
   • Adjust the valve to set the desired downstream pressure.
   • Refer to the valve’s technical documentation for guidance on accurately adjusting the pressure control mechanism.

How Does A Hydraulic Proportional Valve Work?

A hydraulic proportional valve is a key component in hydraulic systems that enables precise control of fluid flow or pressure. It operates based on the principle of varying the valve opening proportionally to an electrical input signal. This allows for accurate and continuous adjustment of flow rates or pressure levels. Let’s delve into the working principles of a hydraulic proportional valve:

1. Valve Construction:
   • A hydraulic proportional valve consists of a valve body, a spool, and an electromagnetic coil.
   • The valve body contains fluid ports for inlet and outlet connections.
2. Electrical Control:
   • The proportional valve is controlled by an electrical signal, typically a voltage or current input.
   • The input signal is usually generated by a control system or a proportional control amplifier.
3. Spool Positioning:
   • The electromagnetic coil is connected to the spool inside the valve body.
   • When an electrical signal is applied to the coil, it generates a magnetic field that moves the spool.
4. Valve Opening:
   • The spool’s movement controls the opening of fluid passages within the valve.
   • As the spool shifts position, it alters the size of the orifice through which the hydraulic fluid flows.
5. Proportional Flow or Pressure Control:
   • By adjusting the spool position, the valve regulates the flow rate or pressure of the hydraulic fluid.
   • The degree of spool movement is proportional to the applied electrical signal, allowing precise control.
6. Feedback Mechanism:
   • Proportional valves often incorporate a feedback mechanism to provide accurate control and closed-loop operation.
   • This feedback mechanism consists of position sensors that monitor the spool’s actual position.
7. Input Signal Conversion:
   • The electrical input signal is converted into a corresponding spool position by the control system or proportional control amplifier.
   • The conversion ensures that the valve responds accurately to changes in the input signal.
8. Dynamic Response:
   • Hydraulic proportional valves are known for their fast response times and high dynamic performance.
   • They can quickly adjust the fluid flow or pressure in real-time, enabling precise control even in dynamic applications.

Kemampuan & Kapasitas Pabrik:

(1) Perakitan

Kami memiliki platform perakitan penelitian dan pengembangan independen kelas satu. Bengkel produksi silinder hidrolik memiliki empat jalur perakitan silinder pengangkat semi-otomatis dan satu jalur perakitan silinder kemiringan otomatis, dengan kapasitas produksi tahunan yang dirancang sebesar 1 juta keping. Bengkel silinder khusus dilengkapi dengan berbagai spesifikasi sistem perakitan pembersihan semi-otomatis dengan kapasitas produksi tahunan yang dirancang sebesar 200.000 dan dilengkapi dengan peralatan permesinan CNC yang terkenal, pusat permesinan, peralatan khusus pemrosesan silinder presisi tinggi, mesin las robot, mesin pembersih otomatis, mesin perakitan silinder otomatis, dan jalur produksi pengecatan otomatis. Peralatan penting yang ada lebih dari 300 set (set). Alokasi optimal dan penggunaan sumber daya peralatan yang efisien memastikan persyaratan akurasi produk dan memenuhi kebutuhan produk berkualitas tinggi.

(2) Pemesinan

Bengkel permesinan dilengkapi dengan pusat pembubutan rel miring yang disesuaikan, pusat permesinan, mesin pengasah berkecepatan tinggi, robot pengelasan, dan peralatan terkait lainnya, yang dapat menangani pemrosesan tabung silinder dengan diameter bagian dalam maksimum 400mm dan panjang maksimum 6 meter.

(3) Pengelasan

(4) Pengecatan & pelapisan

Dengan jalur pelapisan cat berbasis air otomatis silinder kecil dan menengah, untuk mencapai bongkar muat robot otomatis dan penyemprotan otomatis, kapasitas desain 4000 buah per shift;
Kami juga memiliki lini produksi cat semi-otomatis untuk silinder besar yang ditenagai oleh rantai daya, dengan kapasitas desain 60 kasus per shift.

(5) Pengujian

Kami memiliki fasilitas inspeksi kelas satu dan test bed untuk memastikan bahwa kinerja silinder memenuhi persyaratan.

 

 

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