3/4" DN20 Pneumatic Globe Valve

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$1,380.47

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Stock: In Stock
Model: RDDLZ-PGV-DN20
Weight: 1.00
SKU: RDDLZ-PGV-DN20

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Note: This globe valve cannot be used for drinking water.

This valve boasts a nominal pressure of PN16 MPa, designed to handle both gas and liquid mediums, providing flexibility across a range of industrial processes.

Feature

Top-guided construction with multi-spring membrane actuator.

Compact structure, light weight, sensitive action, fluid channel is S streamline, small pressure drop loss, large capacity, easy disassembly and installation.

By using a thin-film multi-spring actuator connected to the adjusting mechanism by three columns, the overall height can be reduced by about 30 per cent and the weight by about 30 per cent. The overall height can be reduced by about 30 per cent and the weight by about 30 per cent.

The valve body is designed according to the principle of fluid dynamics into an equal cross-section low flow resistance flow path, the rated flow coefficient increases by 30%.

Specification

Model	RDDLZ-810D-1S2A-4DK41-DN20
Pipe Diameter	3/4" DN20
Nominal Pressure	PN16 MPa
Rated Flow Coefficient	7 KV
Rated Stroke	8 mm
Film Effective Area	100 cm²
Allowable Pressure Difference	Positive Action: 5.09
Allowable Pressure Difference	Opposite Reaction: 6.4
Signal Pressure	0 or 250
Allowable Leakage	Hard Seal: General: 10^-4 × valve rated capacity; Tight type: single-seat: 1.2 × 10^-7
Allowable Leakage	Soft Seal: Class VI
Operating Temperature	≤ 250℃
Connection Method	Flangeless
Medium of Use	Gas and Liquid
Valve Body Material	304
Bonnet Type	Standard type (-17 ~ +250℃)
Cover Type	Screw compression type
Sealing Material	V-shaped PTFE packing, reinforced PTFE packing, graphite braided packing, flexible graphite
Valve Core Type	Single-seat spool
Flow Characteristics	Quick opening characteristic
Included Accessories	Pneumatic diaphragm actuator, DC24V solenoid valve, limit switch, and air filter regulator.

Dimension (Unit: mm)

DN	A	L	H	H1	H4
20	290	181	53	140	285

Application

Tips: Can the valve be used for on/off applications, or is it strictly for throttling purposes?

The 3/4" Pneumatic Globe Valve is versatile and can be employed for both on/off applications and throttling purposes. Here's a detailed explanation:

Throttling Applications

Precise Flow Control: The globe valve is well-suited for throttling or modulating applications where precise control over the flow rate is required. Its design allows for gradual adjustment of the flow, making it ideal for processes that demand accurate regulation.
Varied Flow Rates: The valve's ability to modulate the flow of fluids makes it suitable for processes that involve varying flow rates, allowing operators to finely tune the amount of fluid passing through the system.
Stable Control: In applications where maintaining a stable and controlled flow is critical, such as in certain chemical or manufacturing processes, the globe valve excels in providing the necessary level of control.

On/Off Applications:

Quick Response: The pneumatic actuation system of the valve enables rapid changes in position, facilitating quick on/off functionality. This responsiveness is crucial in applications where immediate shut-off or opening of the flow is required.
Emergency Situations: In scenarios where a rapid response to shut down or start a process is essential, the valve's on/off capabilities contribute to the overall safety and reliability of the system.
Versatility: The ability of the valve to serve dual purposes—throttling and on/off—adds to its versatility. It can adapt to a wide range of operational requirements within a pneumatic control system.

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