Non-compensated inline flow control valve – STB-G1/2

The STB-G1/2 (DV-12-A) valves are designed to regulate flow in both directions (providing the same regulation for both advance and return strokes).

Appreciated for their aesthetic characteristics, which positively satisfy the most diverse construction standards of the equipment where they are installed, the STB-G1/2 (DV-12-A) valves also present themselves as a reliable solution for the most demanding technical and functional applications.

The volumetric flow depends on the pressure differential and the fluid viscosity at which the valve is operating (non-compensated); that is, the regulated flow rate may be higher or lower depending on the variation in fluid viscosity or temperature over time. The inline flow control valve (STB-G1/2 (DV-12-A)) allows for sensitive flow adjustment and shut-off, due to its special closure design (flow reduction).

Technical Catalog

Description

Features:

• Efficient metal-to-metal sealing;
• Linear flow linearity during opening;
• Precise control for a wide flow range;
• Needle cannot come out of its seat even at maximum speed (full opening);
• Easy installation;
• Quick panel mounting (nuts (G) are supplied separately);
• Check valve with 0.5 bar opening spring.
• Flow control valves available in sizes from 1/4″ to 1″ BSPP;
• Maximum application pressure: 400 Bar / 320 Bar;
• Inline or panel mounting (with panel thread).
• Manufactured in carbon steel.
• Connections: F–F (Female–Female).
• Weight: 0.59 kg;
• Recommended fluids: Mineral oil and phosphate ester;
• Temperature range: -20 to +80°C;
• Recommended viscosity: 2.8 to 500 mm²/s;
• Installation position: Optional, according to the customer’s application.
• Recommended contamination class: Class 9, NAS 1638 or 20/18/15, ISO 4406;
• Inlet connections (threaded): 1/2 BSP (Female);
• Maximum flow rate: 50 liters per minute;
• Seals: NBR.