The decision: which flow-control part actually fits the job?
If you're working on an industrial line, 'flow control' can mean a compact fitting that regulates air speed on a single line, or a complete assembly with pressure regulators and a controller board. The options here span $39.89 to $899.99, and each one answers a different version of the same problem. The right pick depends on which of those versions you're facing.
Quick take
If you need integrated flow modulation with pressure regulation, the Air + CO2 Industrial Flow Modulator is the most complete unit in the group. If you need to route flow across multiple ports, the M600 Multi Port Valve is built for that role. For a straightforward standalone valve, the UCC PARKER flow control valve sits in the middle of the price range. And if you just need a low-cost pneumatic speed fitting, the NAS2000F-05 is the entry point.
Listed price comparison
| Product | Listed price | Price bar |
|---|---|---|
| Air + CO2 Flow Modulator (CKD FCM + RB500 x2 + Yokogawa) | USD 899.99 | |
| M600 Multi Port Valve | USD 500.71 | |
| UCC PARKER Industrial Flow Control Valve | USD 99.00 | |
| NAS2000F-05 Pneumatic Speed Controller Fitting | USD 39.89 |
Decision matrix
| Product | Type | Condition | Best use case | Watch out |
|---|---|---|---|---|
| Air + CO2 Flow Modulator | Flow controller with two pressure regulators and a control board | Used | Integrated air/CO2 modulation | Highest price; exact model not matched |
| M600 Multi Port Valve | Multi-port flow control valve | New open box | Routing flow across multiple ports | Identified mainly by part number |
| UCC PARKER Flow Control Valve | Industrial flow control valve | New open box | Standard single-valve flow control | Standalone valve; no accessories mentioned |
| NAS2000F-05 Speed Controller Fitting | Pneumatic speed controller fitting | New open box | Low-cost speed control on air lines | Price applies per individual piece |
Product notes
#### Air + CO2 Industrial Flow Modulator CKD Flow Controller FCM, RB500 x2 Yokogawa

The most complete package here. This used unit combines a CKD FCM flow controller, two CKD RB500 compact pressure regulators, a Yokogawa control board, and all-Made-in-Japan parts. If your system needs flow modulation and pressure regulation working together rather than a single valve in a line, this pulls several components into one purchase. The trade-offs are the top price in the group and the used condition, and the exact model was not matched against a known equivalent. This is a buy for a specific, integrated application.
#### M600 Multi Port Valve Industrial Flow Control Valve

This is the only product here built around multi-port routing. The M600 is a new open-box unit, unused and fully functional, which makes it a plug-in option for setups that need flow directed across several ports from one valve. It is the second-highest price in the group, and the M600 part number carries the identity of the product, so what you are anchoring on is the model itself rather than a broad catalog description. Choose it when the job is managing flow paths, not just throttling a single line.
#### UCC PARKER UC-SCV1701 Industrial Flow Control Valve

For a straightforward flow control valve, this UCC PARKER unit is the mid-priced option and is in new open-box condition. Its type is explicitly Industrial Flow Control Valve, which makes its role easy to line up with a standard flow control task. It is a standalone valve, with no additional fittings, regulators, or controllers mentioned, so it answers the simple job of controlling flow in one place. If your project calls for a basic valve and you do not need a multi-port design or a full controller assembly, this is the one to weigh.
#### SMC NAS2000F-05 Pneumatic Speed Controller Flow Control Valve Fitting Industrial

The NAS2000F-05 pneumatic speed controller fitting is the entry point of this price range and serves the narrowest job: regulating speed in a pneumatic line through a flow control fitting. If your setup is air-based and you simply need to tune speed on a line, this is a straightforward buy, in new open-box condition with Country of Origin China. The price applies per individual piece, so a system that needs several fittings will multiply the cost across multiple units. Its identity as a fitting keeps the scope small and the role clear.
Final recommendations
- If you want a complete assembly with a flow controller, pressure regulators, and a controller board in one unit, the Air + CO2 Industrial Flow Modulator is the pick. Reserve it for a project that genuinely needs that integration.
- If your layout routes flow to multiple ports, the M600 Multi Port Valve is the new open-box choice built for that specific task.
- If you need a simple industrial flow control valve without extra components, the UCC PARKER unit at the middle of the price range is the practical option.
- If you just need low-cost speed control on a pneumatic line and you are comfortable with per-piece pricing, the NAS2000F-05 speed controller fitting is the entry pick.