Valves

Throttle valves

Pneumatic throttle valves regulate volumetric flow in compressed air lines by means of an adjustable flow restriction, controlling the travel speed of cylinder pistons. The range covers block throttle valves DV (G 1/8" to G 1/2", M 5) and block throttle check valves DRVE, available in standard (E), brass spindle (MS) for aggressive environments, or compact (C) designs. Inlet and exhaust flow-control check valves GRLD and Airtec precision versions (DR 14, DR 18, DR 25, DR 10) round out the programme.

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Buying guide

How to choose Throttle valves

What matters when choosing: properties, comparison and typical applications.

Designs and variants

⚙ Block throttle valves DV E - throttling in both directions, M 5 to G 1/2"; protective cap DRV SK prevents unintentional adjustment

✓ Block throttle check valves DRVE E - free flow in one direction, throttled in reverse; M 5 to G 1/2"

⛤ Brass spindle version MS - DV 14 MS, DV 18 MS, DRVE 14 MS, DRVE 18 MS for chemically aggressive media environments

⚡ Compact version C (E.MC) - DRVE 12 C G 1/2", reduced body length for confined installation

📦 GRLD series (inlet and exhaust metering) - GRLD 14 A (G 1/4"), GRLD 146 K (G 1/4"-8x6 mm); combined inlet and exhaust flow control

🕐 Airtec precision DR - DR 10 (G 1"), DR 14 (G 1/4"), DR 18 (G 1/8"), DR 25 (M 5); higher repeatability

Selection guide by port and function

Requirement	Series	Port	Version
Throttling only (both directions)	DV E	M 5, G 1/8"-G 1/2"	Standard, MS (aggressive)
Throttling + check	DRVE E	M 5, G 1/8"-G 1/2"	Standard, MS, C (compact)
Precision throttling	Airtec DR 14/18/25/10	G 1/4", G 1/8", M 5, G 1"	Precision
Inlet and exhaust metering	GRLD 14 A / GRLD 146 K	G 1/4", G 1/4"-8x6 mm	Combined metering
Tamper protection	DRV SK 14 / SK 18 / SK 25	M 20x1.5; M 12x1; M 10x1	Protective cap

Typical applications

Typical applications: Adjusting cylinder extension speed in assembly and handling automation (inlet or exhaust metering), throttling pilot air in control circuits, chemical and food processing plants (brass spindle variant MS), space-critical machine installations (compact version C), and precision applications requiring reproducible settings (Airtec Precision).