Technical selection
Specifications and configuration
Reference — ML series
| Parameter | Documented value / configuration |
|---|---|
| Maximum flow coefficient cv | 0.15Conditions: scope: Manufacturer metering-valve example. Cv is a coefficient, not litres per minute or a guaranteed loop flow. Exact material, seal, fluid and operating conditions remain configuration-specific. |
| Orifice | 3.25 mmConditions: scope: Manufacturer metering-valve example. Cv is a coefficient, not litres per minute or a guaranteed loop flow. Exact material, seal, fluid and operating conditions remain configuration-specific. |
| Stem taper | 6.5 degreeConditions: scope: Manufacturer metering-valve example. Cv is a coefficient, not litres per minute or a guaranteed loop flow. Exact material, seal, fluid and operating conditions remain configuration-specific. |
| Opening turns | 10 to 11 turnsConditions: scope: Manufacturer metering-valve example. Cv is a coefficient, not litres per minute or a guaranteed loop flow. Exact material, seal, fluid and operating conditions remain configuration-specific. |
| Flow patterns | Straight and angle configurationsConditions: scope: Manufacturer metering-valve example. Cv is a coefficient, not litres per minute or a guaranteed loop flow. Exact material, seal, fluid and operating conditions remain configuration-specific. |
| Handle options | Round or vernier handle; panel mounting availableConditions: scope: Manufacturer metering-valve example. Cv is a coefficient, not litres per minute or a guaranteed loop flow. Exact material, seal, fluid and operating conditions remain configuration-specific. |
| Shutoff function | Listed for ML series; do not infer that every metering valve provides shutoffConditions: scope: Manufacturer metering-valve example. Cv is a coefficient, not litres per minute or a guaranteed loop flow. Exact material, seal, fluid and operating conditions remain configuration-specific. |
Manufacturer series reference. Confirm the exact order code, mating parts and stated conditions for the quoted configuration.
Overview
This valve family provides manual fine adjustment at a branch, test rig or balancing point where the buyer defines the desired hydraulic duty. The reference is a metering-valve construction rather than an automatic flow regulator.
Construction and interfaces
The photographed reference shows a hand-operated valve with tube-fitting ends. The documented series offers straight and angle flow patterns, while stem geometry, handle and panel-mount options depend on the selected configuration.
Selection
Use the documented Cv coefficient together with fluid properties and the required pressure drop; Cv is not itself a guaranteed flow in litres per minute. Verify the selected valve's connection, material and service conditions before using it in a coolant loop.
Configuration options
The source series describes straight or angle bodies and round or vernier handles, with panel mounting available. Those are order choices, not evidence that the pictured unit combines every option simultaneously.
Application limits
Metering and shutoff duties must be reviewed separately. The source lists a shutoff function for the documented series, but that property cannot be transferred to all needle or metering valves or to unknown coolant configurations.
