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FESTO MS6-LFR Flow Control Valve | 1/2" NPT, Brass, Manual, Needle Valve, Compressed Air Specs

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FESTO MS6-LFR Flow Control Valve | 1/2" NPT, Brass, Manual, Needle Valve, Compressed Air Specs

FESTO MS6-LFR Flow Control Valve | 1/2" NPT, Brass, Manual, Needle Valve, Compressed Air Specs
FESTO MS6-LFR Flow Control Valve | 1/2" NPT, Brass, Manual, Needle Valve, Compressed Air Specs
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商品の詳細:
証明: ATEX
書類: ACH-AB-P+F-E+H-IFM-ASCO-YOK...WA.pdf
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詳細製品概要
電源: DC12～30V（2線式） 周囲温度: -40°C〜80°C（-40°F〜176°F）
電気定格: 汎用、防爆、本質安全防爆（認定に応じて） 認証: 標準モデルには、ATEX、IECEx、SIL 2 が含まれます (特定の定格についてはマニュアルを参照してください)
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FESTO MS6-LFR brass needle valve

,

1/2 NPT manual flow control valve

,

compressed air needle valve with warranty

FESTO MS6-LFR Flow Control Valve | 1/2" NPT, Brass, Manual, Needle Valve, Compressed Air Specs

FESTO MS6-LFR-12-D6-C-R-V-AS flow control valve specifications. Brass body, 1/2" NPT, manual needle valve, compressed air. Part number decoding and technical data.

Product Overview

The FESTO MS6-LFR-12-D6-C-R-V-AS​ is a manual flow control valve​ from Festo's extensive fluid control product line. Specifically, it is a needle valve​ designed for precise regulation of flow rate in compressed air systems. This valve features a brass body, 1/2" NPT port connections, and a manual adjustment knob​ with locking function. The alphanumeric designation provides a complete specification: an adjustable, lockable, manual needle valve for controlling airflow in pneumatic circuits.

Product Code Breakdown (MS6-LFR-12-D6-C-R-V-AS)

Each segment of the part number defines a specific feature:

Code Segment

Meaning

Description

MS6​

Product Series

Festo MS series manual valve

LFR​

Valve Type

Adjustable needle valve (flow regulator)

1/2​

Port Size

1/2 inch nominal port size

D​

Port Thread

D = NPT (American National Pipe Taper)

6​

Body Material

6 = Brass

C​

Sealing Material

C = NBR (Nitrile Rubber)

R​

Actuation Type

R = Manual, rotary knob

V​

Locking Function

V = With locking mechanism

AS​

Special Version

AS = Standard version, adjustable in one direction

Technical Specifications

Parameter

Specification

Manufacturer Part Number​

MS6-LFR-12-D6-C-R-V-AS

Product Type​

Manual Needle Valve / Flow Control Valve

Valve Function​

Adjustable throttling, one-direction flow control

Actuation​

Manual, rotary knob with locking ring

Adjustment​

Infinitely variable

Locking Function​

Yes, via lockable adjustment ring

Port Connections​

1/2" NPT (internal)

Number of Ports​

2 (Inlet and Outlet)

Body Material​

Brass, chromium-plated

Seal Material​

NBR (Nitrile Rubber)

Spindle/Needle Material​

Stainless Steel

Handle/Knob Material​

Plastic (PBT)

Media​

Compressed air, lubricated or non-lubricated (as per ISO 8573-1)

Maximum Operating Pressure​

10 bar (145 psi)

Operating Pressure Range​

0.5 to 10 bar (7 to 145 psi)

Temperature Range (Media)​

0°C to +60°C (+32°F to +140°F)

Ambient Temperature Range​

0°C to +60°C (+32°F to +140°F)

Flow Coefficient (Cv value)​

Approximately 6.0 (Reference value, depends on setting)

Flow Rate (Qn)​

Up to ~4500 l/min (free air)

Leakage Class​

Class 4 (according to ISO 6953)

Mounting Position​

Any

Weight​

Approx. 0.25 kg

Degree of Protection​

IP40 (with knob installed)

Standards​

ISO 1179-1, ISO 228-1

Note: Specifications are based on Festo MS6 series documentation. The Cv value and flow rate are approximate and highly dependent on the valve setting, pressure, and system conditions.

Key Features

  • Precise Flow Control:​ Infinitely adjustable needle design for fine-tuning airflow.

  • Lockable Setting:​ Integrated locking ring prevents accidental adjustment after setting.

  • Robust Brass Construction:​ Durable body suitable for industrial compressed air systems.

  • Standard NPT Ports:​ 1/2" NPT threads for easy integration into North American pneumatic systems.

  • Clear Scale:​ Adjustment knob with graduated scale for reproducible settings.

  • Bidirectional Flow:​ Can be installed for flow control in one direction (check function in the other).

  • Compact Design:​ Space-saving inline design.

  • Wide Pressure Range:​ Suitable for standard plant air pressures (up to 145 psi).

  • NBR Seals:​ Compatible with lubricated and non-lubricated air.

Flow Characteristics

Setting

Function

Description

Fully Closed​

Shut-off

Stops flow completely.

Partially Open​

Throttling/Regulating

Restricts flow, creating a pressure drop. Used for speed control of cylinders.

Fully Open​

Free Flow (One Direction)

Allows free flow in the adjustable direction. The opposite direction may be blocked or restricted.

Note: The "AS" variant is typically adjustable in one flow direction only. Flow in the opposite direction may be free or restricted depending on the internal check valve configuration.

Typical Applications

  • Cylinder Speed Control:​ Regulating the extension and/or retraction speed of pneumatic cylinders.

  • Actuator Timing:​ Controlling the operational speed of pneumatic actuators.

  • Flow Metering:​ Precisely setting a specific airflow rate for a process.

  • Pneumatic Circuit Tuning:​ Balancing flow in multi-actuator circuits.

  • Pressure Compensation:​ Used as a variable orifice to create a controlled pressure drop.

  • General Process Regulation:​ Any application requiring manual adjustment of compressed air flow.

Selection and Sizing Considerations

Factor

Consideration

Flow Requirement​

Ensure the valve's Cv (~6.0) and maximum flow rate meet the needs of the actuator(s) downstream.

Pressure​

Must operate within the 0.5 to 10 bar range.

Port Size​

1/2" NPT must match the tubing or fitting size in the circuit. Adapters may be required.

Media Compatibility​

Designed for compressed air. Not typically for water, vacuum, or aggressive gases without confirming material compatibility.

Adjustment Need​

Manual adjustment is suitable for settings that are infrequently changed. For frequent changes, consider a valve with a detented knob or other means.

Mounting​

Ensure there is adequate space to turn the adjustment knob. The valve can be mounted in any orientation.

Important Installation & Operational Notes

  1. Installation Direction:​ Install according to the flow arrow marked on the valve body. The "AS" version controls flow in one specific direction.

  2. Thread Sealing:​ Use appropriate thread sealant (e.g., PTFE tape or liquid thread sealant) compatible with compressed air on NPT threads. Do not overtighten.

  3. System Cleanliness:​ Install in a clean, dry compressed air system. Use a filter upstream to protect the valve seat from particulate contamination.

  4. Adjustment Procedure:​ Loosen the locking ring before turning the adjustment knob. Turn clockwise to reduce flow (close), counter-clockwise to increase flow (open). Re-tighten the locking ring to secure the setting.

  5. Pressure Rating:​ Do not exceed the maximum operating pressure of 10 bar (145 psi).

  6. Temperature Limits:​ Do not expose to media or ambient temperatures outside the 0°C to +60°C range.

  7. Leakage:​ This is a regulating valve, not a guaranteed bubble-tight shut-off valve. Some minimal leakage is possible when fully closed.

  8. Maintenance:​ If performance degrades (inability to shut off flow), the valve seat or needle may be worn or contaminated and require cleaning or replacement.

Note: This data sheet provides general specifications for the FESTO MS6-LFR-12-D6-C-R-V-AS manual needle valve. For complete installation instructions, flow characteristic curves, and detailed safety information, consult the official Festo MS6 Series Product Documentation. Always verify media compatibility, pressure, and flow requirements for your specific application.

FESTO MS6-LFR Flow Control Valve | 1/2" NPT, Brass, Manual, Needle Valve, Compressed Air Specs 0

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About ACH

Founded in 2012, ACH is a top-tier distributor of industrial automation products, supplying genuine devices from leading brands like ABB, P+F, E&H, AB, MTL and EMERSON to emerging markets worldwide. Our mission is to provide 100% Genuine products at the most competitive prices, helping customers reduce costs and strengthen their market position.

FESTO MS6-LFR Flow Control Valve | 1/2" NPT, Brass, Manual, Needle Valve, Compressed Air Specs 1
Frequently Ask & Questions
Are preferential prices available?

Long-term brand partners can get competitive product prices. At the same time, ACH controls the profit per order to 5%, providing the most competitive prices.

Are the Products Genuine OEM Units?

Yes, all products from ACH are certified genuine OEM units. We acquire our inventory through official OEM channels and trusted third-party suppliers, ensuring every item is authentic and reliable.

How will you arrange shipment?

We'll handle the shipping for you. Through our partnerships, we can secure competitive rates with major carriers like FedEx, DHL, TNT, and UPS, ensuring a smooth and cost-effective delivery.

What is the warranty of goods?

One-year Warranty.

How long is the logistics cycle of the product?

Products are divided into spot and futures, and the delivery period of different brands of products is also different. For details, please contact the ACH business manager.

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