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Coi Technology S.r.l.
GLV series - PRESSURE RELIEF VALVES

GLV series - PRESSURE RELIEF VALVES

Product catalog summary

Overview: The GLV-Series Pressure Relief Valves are essential safety devices designed to prevent excessive pressure buildup in systems handling incompressible fluids. They are available in various materials and configurations to meet diverse industrial needs.

Applications: These valves are suitable for use in chemical and petrochemical plants, dosing systems, injection skids, metering pumps, water treatment and desalination plants, and cryogenic plants handling liquefied gases.

Materials: Constructed from materials such as AISI 316L, Inconel, Alloy 20, Hastelloy C276, Titanium, Duplex, Super duplex, Monel, Brass, and Aluminum Bronze, with exotic materials available upon request.

Design and Specifications:

Angle-type construction with full nozzle design.
Seat sealing options include PTFE, PEEK, Metal to Metal, Viton, Kalrez, and EPDM.
Connections available in screwed and flanged types, compatible with ASME and DIN standards.
Flange ratings range from ASME 150 to 2500 and PN16 to PN400.
Sizes range from 1/2” to 2” (DN 15 to DN 50).
Orifice sizes include 4, 6, 8, 10, 14, 20, 25, and 30 mm.
Performance includes full lift characteristic with 10% overpressure and 15% blowdown, with a discharge coefficient (Kd) of 0.7.
Temperature range from -196°C to +350°C.
Set pressure range from 0.5 to 1200 barg.
Complies with UNI EN ISO 4126-1 design standard.

Approvals: CE marked according to directive 2014/68/EU, ATEX certified under 2014/34/EU, and EAC marked for Eurasian conformity.

Accessories: Options include balancing/isolating bellows, lifting packed levers, test gags, and heating jackets.

Types and Configurations: Various types (A, B, C, D, E, F) are detailed with specific inlet and outlet connections, orifice sizes, discharge areas, pressure ranges, and weights, available in different materials and configurations.

Plastic Version: Designed for similar applications using materials like PVC, PP, PVDF, and PTFE, with a temperature range of -20°C to +180°C and a set pressure range of 0.5 to 12 barg, adhering to EN 4162-1 design standards.

Technical Document Summary:

1. Specifications: Detailed specifications for connection types and materials, including pressure range and discharge area for different orifice sizes.

2. Connection Types:

Threaded Connections: Sizes from 1/2” to 2” with specific dimensions and weights.
Flanged Connections: ASME and DIN standards, sizes from DN15 to DN50, pressure ratings from PN16 to PN40.

3. Materials: Lists materials for various parts, including PVC, PP, PTFE, and carbon steel, with specific material codes.

4. Characteristics: Details on orifice diameter, discharge area, and pressure range for different valve types.

5. Accessories: Information on heating and washing connections, bellows, limit switches, and test gags.

6. Notes and Contact Information: Modifications by Coi Technology SRL, with contact information for inquiries, located in San Giuliano Milanese, Italy.

Catalog excerpts

RELIEF VALVES

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SAFETY VALVES SERIES TABLE OF CONTENTS Relief Valves GLV-Series are spring loaded pressure relieving devices, suitable ST. STEEL VERSION Introduction Type A DN15 for discharge of incompressible fluids. GLV-series relief valves are used to protect personnel, equipment and environment by preventing excessive pressure accumulation. Coi Technology offers a large range of screwed and flanged valves in a variety of sizes, materials and options. The valves are of a full nozzle type and available in Steel or plastic versions. Application - Chemical plants - Petrochemical plants - Dosing systems -...

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PI TECH SAFETY VALVES MATERIALS CHARACTERISTICS INLET CONNECTIONS Threaded OUTLET CONNECTIONS Threaded PART NAME

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INLET CONNECTIONS Threaded OUTLET CONNECTIONS Threaded PART NAME

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MATERIALS Dl TECH SAFETY VALVES INLET CONNECTIONS Threaded OUTLET CONNECTIONS Threaded PART NAME

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MATERIALS £j Dl TECH SAFETY VALVES INLET CONNECTIONS Threaded OUTLET CONNECTIONS Threaded PART NAME

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TYPE "E" TYPE "F" Dl TECH SAFETY VALVES INLET CONNECTIONS INLET CONNECTIONS OUTLET CONNECTIONS OUTLET CONNECTIONS MATERIALS MATERIALS PART NAME PART NAME

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SAFETY VALVES GLV SERIES Plastic Version Relief Valves GLV-Series plastic version Application - Chemical plants - Petrochemical plants - Dosing systems - Injections skids - Metering pumps - Water treatment and desalination plants - Cryogenic plants (liquefied gases) Accessories - Balancing / isolating bellows in PTFE - Test gag Materials PVC, PP, PVDF, PTFE. Design - Construction: - Seat sealing type: - Connections: - Connections types: - Flange ratings: - Sizes: - Orifices: - Characteristic: - Overpressure: - Blowdown: - Discharge coeff. Kd: - Temperature range: - Set pressure range: - Design...

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INLET CONNECTIONS Threaded OUTLET CONNECTIONS Threaded PART NAME

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TYPE "B" MATERIALS £j Dl TECH SAFETY VALVES INLET CONNECTIONS Threaded OUTLET CONNECTIONS PART NAME

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INLET CONNECTIONS Threaded OUTLET CONNECTIONS Threaded PART NAME

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TYPE"D” MATERIALS £j Dl TECH SAFETY VALVES INLET CONNECTIONS Threaded OUTLET CONNECTIONS Threaded PART NAME

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HEATING CONNECTION LIFTING PACKED LEVER TAG PLATE COI Technology s.r.l. San Giuliano Milanese (Ml) - ITALY NOZZLE MATERIAL! Part Code description: Material code Specification (threaded, flanged, ecc.) Jype Orifice diameter Version (carried exhaust) Valve series Material code Specification (threaded, flanged, ecc.) Type Orifice diameter Version (carried exhaust) Valve series

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NOTE: • Modiﬁcations reserved by Coi Technology SRL. • Dimensions and Materials can be changed without notice. • Parts can be replaced by other materials acc. to customer speciﬁcation. • Please do not hesitate to contact our Commercial or Technical Department for further information on speciﬁc applications and special technical que

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OITECH SAFETY VALVES MALPENSA aeroporto ©TECH How to reach our Company 1. Highway A1 (tangenziale Ovest) exit San Giuliano Milanese 2. proceed to Via della Liberazione

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GLV series - PRESSURE RELIEF VALVES

GLV series - PRESSURE RELIEF VALVES

Catalog excerpts

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