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C.Matic S.p.A.
VT Line - Function Fittings for Air Brake Systems

VT Line - Function Fittings for Air Brake Systems

Product catalog summary

Technical Specifications:
The document details specifications for pneumatic components such as quick exhaust valves, pilot-operated check valves, and flow control devices. These are used in pneumatic systems with filtered and lubricated air, made from materials like anodized aluminum, stainless steel, and nickel-plated brass. Additionally, it specifies a drain valve for air brake systems, conforming to DIN 74324 and ISO 3583 standards, made from Brass UNI EN 12164 CW614N, with low-temperature NBR seals and a stainless steel spring.

Procedures and Recommendations:
Recommended tubing materials include PA11, PA12, PA6, Polyethylene PE, and Polyurethane PU (95 Shore A). Proper fittings and tubings are crucial for optimal pneumatic system performance.

Performance Parameters:
The document provides flow rates at various pressures for different valve sizes, such as a 1/4 valve handling 1050 Nl/min at 6 bar. It also covers operating temperatures from -50°C to 100°C and pressures from 0 to 16 bar for air brake systems.

Application Fields:
These components are suitable for pneumatic installations in commercial and industrial vehicles, especially air brake systems. The VT90 series is certified to DIN 74324 standards.

Key Features:
- Quick exhaust valves enhance cylinder speed by rapidly venting air during supply failure.
- Pilot-operated check valves ensure rapid cylinder piston stops during pressure failure.
- Flow control devices with swivel push-in fittings allow easy orientation and adjustment post-installation.

Certification and Standards:
The document references certification standards like DIN 74324 for air brake systems, ensuring reliability and safety in commercial and industrial applications.

Components and Materials:
The valve body is made of Brass UNI EN 12164 CW614N, with seals from low-temperature NBR, a stainless steel spring, and a PA6.6 protection cap.

Dimensions and Types:
Detailed dimensions for various valve types are provided, including measurements for D1, D2, D3, L1, L2, and CH.

Flow Control:
Flow control devices adjust air flow in pneumatic circuits, with bidirectional and unidirectional options for controlling pneumatic cylinder speed.

Tightening Torque Forces:
Reference to a table on page 74 for tightening torque forces for the VT series.

Catalog excerpts

VT Line - Function Fittings for Air Brake Systems-1

Raccordi a Funzione per gli Impianti Frenanti Function Fittings for Air Brake Systems Raccords à Function pour Systèmes de Freinage Pneumatique Funktionsverschraubungen für Druckluftbremssysteme

Open the catalog to page 1

VT Line - Function Fittings for Air Brake Systems-2

VT 90 Corpo Body Corps Körper Valvola di drenaggio di condensa 1 Anello piatto Flat ring Anneau plat Flacher Ring Tampone Flat seal Joint plat ﬂache Dichtung Guarnizioni Seals Joint d’étancheité Dichtung Molla Spring Ressort Feder NBR (bassa temperatura) NBR (low temperature) NBR (basse température) NBR (niedrige Temperatur) NBR (bassa temperatura) NBR (low temperature) NBR (basse température) NBR (niedrige Temperatur) Acciaio Inox AISI 302 Stainless Steel AISI 302 Acier Inox AISI 302 Edelstahl AISI 302 Ottone UNI EN 12164 CW614N Brass UNI EN 12164 CW614N Laiton UNI EN 12164 CW614N Messing UNI...

Open the catalog to page 2

VT Line - Function Fittings for Air Brake Systems-3

VT 91 Corpo Body Corps Körper Pressure test point 1 Pressure test point 2/5 Guarnizioni Seals Joint d’étancheité Dichtung Ottone UNI EN 12164 CW614N Brass UNI EN 12164 CW614N Laiton UNI EN 12164 CW614N Messing UNI EN 12164 CW614N Molla Spring Ressort Feder NBR (bassa temperatura) NBR (low temperature) NBR (basse température) NBR (niedrige Temperatur) Acciaio Inox AISI 302 Stainless Steel AISI 302 Acier Inox AISI 302 Edelstahl AISI 302 Pistone Piston Piston Kolben Tappo Protezione Protection Cap Capuchon de protection Schutzkappe NBR (bassa temperatura) NBR (low temperature) NBR (basse température)...

Open the catalog to page 3

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