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Retention Valves

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characteristics of the Retention valves

Check valves are automatically operating valves, which have safety applications to prevent backflow. When the pump is not running, they keep the pipe line full.

COMPETITIVE ADVANTAGES

The retention valves are unidirectional, and can be installed horizontally or vertically in the line.

DESIGN FEATURES

  • Minimal disc travel to full open position.
  • Fast action.

Recommended for

  • When there are frequent changes of circulation in the pipeline.
  • For use with globe and angle valves.
  • For use when pressure drop across the valve is not a problem.

TECHNICAL INFORMATION

ARFLU MANUFACTURING RANGE

ARFLU is known for its wide range of products, we manufacture a large number of valves in almost all sizes and materials. If you do not find the valve you need in the table below, please contact our sales team and we will study the feasibility of producing in other dimensions.

SIZE

construction

ends

asme class

international standards

2″ a 24″
Tapa Atornillada
RF – RTJ – BW
150 – 300 – 400 -600
API 6D – BS 1868 – ASME B 16.34
TAMAÑO
2″ a 24″
CONSTRUCCIÓN
Tapa Atornillada
EXTREMOS
RF – RTJ – BW
CLASE ASME
150 – 300 – 400 -600
NORMAS INTERNACIONALES
API 6D – BS 1868 – ASME B 16.34
2″ a 36″
Tapa Atornillada
RF – RTJ – BW
900 – 1500
API 6D – BS 1868 – ASME B 16.34
TAMAÑO
2″ a 36″
CONSTRUCCIÓN
Tapa Atornillada
EXTREMOS
RF – RTJ – BW
CLASE ASME
900 – 1500
NORMAS INTERNACIONALES
API 6D – BS 1868 – ASME B 16.34
2″ a 12″
Tapa Atornillada
RF – RTJ – BW
2500
API 6D – BS 1868 – ASME B 16.34
TAMAÑO
2″ a 12″
CONSTRUCCIÓN
Tapa Atornillada
EXTREMOS
RF – RTJ – BW
CLASE ASME
2500
NORMAS INTERNACIONALES
API 6D – BS 1868 – ASME B 16.34
2″ a 24″
Pressure Seal
RF – RTJ – BW
900 – 1500
ASME B 16.34
TAMAÑO
2″ a 24″
CONSTRUCCIÓN
Pressure Seal
EXTREMOS
RF – RTJ – BW
CLASE ASME
900 – 1500
NORMAS INTERNACIONALES
ASME B 16.34
2″ a 16″
Pressure Seal
RF – RTJ – BW
2500
ASME B 16.34
TAMAÑO
2″ a 16″
CONSTRUCCIÓN
Pressure Seal
EXTREMOS
RF – RTJ – BW
CLASE ASME
2500
NORMAS INTERNACIONALES
ASME B 16.34
1/4″ a 2″
Tapa Atornillada / Tapa Soldada
Brida- SW – Roscado
150-300-600-800-1500
API 602 – ISO 15761
TAMAÑO
1/4″ a 2″
CONSTRUCCIÓN
Tapa Atornillada / Tapa Soldada
EXTREMOS
Brida- SW – Roscado
CLASE ASME
150-300-600-800-1500
NORMAS INTERNACIONALES
API 602 – ISO 15761
2″ a 6″
Wafer Simple
Wafer
150 – 300
API 6D – BS 1868 – ASME B 16.34
TAMAÑO
2″ a 6″
CONSTRUCCIÓN
Wafer Simple
EXTREMOS
Wafer
CLASE ASME
150 – 300
NORMAS INTERNACIONALES
API 6D – BS 1868 – ASME B 16.34
2″ a 10″
Wafer Doble clapeta
Wafer – Lug
150 – 300 – 600
API 6D – BS 1868 – ASME B 16.34
TAMAÑO
2″ a 10″
CONSTRUCCIÓN
Wafer Doble clapeta
EXTREMOS
Wafer – Lug
CLASE ASME
150 – 300 – 600
NORMAS INTERNACIONALES
API 6D – BS 1868 – ASME B 16.34
10″ a 48″
Wafer Doble clapeta
Wafer – Lug – bridas
150 – 300 – 600
API 6D – BS 1868 – ASME B 16.34
TAMAÑO
10″ a 48″
CONSTRUCCIÓN
Wafer Doble clapeta
EXTREMOS
Wafer – Lug – bridas
CLASE ASME
150 – 300 – 600
NORMAS INTERNACIONALES
API 6D – BS 1868 – ASME B 16.34
2″ a 36″
Wafer Doble clapeta
Wafer – Lug – bridas
900 – 1500
API 6D – BS 1868 – ASME B 16.34
TAMAÑO
2″ a 36″
CONSTRUCCIÓN
Wafer Doble clapeta
EXTREMOS
Wafer – Lug – bridas
CLASE ASME
900 – 1500
NORMAS INTERNACIONALES
API 6D – BS 1868 – ASME B 16.34
2″ a 24″
Wafer Doble clapeta
Wafer – Lug – bridas
2500
API 6D – BS 1868 – ASME B 16.34
TAMAÑO
2″ a 24″
CONSTRUCCIÓN
Wafer Doble clapeta
EXTREMOS
Wafer – Lug – bridas
CLASE ASME
2500
NORMAS INTERNACIONALES
API 6D – BS 1868 – ASME B 16.34
2″ a 12″
Pistón Tapa Atornillada
RF – RTJ – BW
150 – 300 – 400 -600
API 6D – BS 1868 – ASME B 16.34
TAMAÑO
2″ a 12″
CONSTRUCCIÓN
Pistón Tapa Atornillada
EXTREMOS
RF – RTJ – BW
CLASE ASME
150 – 300 – 400 -600
NORMAS INTERNACIONALES
API 6D – BS 1868 – ASME B 16.34
2″ a 6″
Pistón Tapa Atornillada
RF – RTJ – BW
900 – 1500
API 6D – BS 1868 – ASME B 16.34
TAMAÑO
2″ a 6″
CONSTRUCCIÓN
Pistón Tapa Atornillada
EXTREMOS
RF – RTJ – BW
CLASE ASME
900 – 1500
NORMAS INTERNACIONALES
API 6D – BS 1868 – ASME B 16.34
1/4″ a 2″
PistónTapa Atornillada/ PistónTapa Soldada
Brida- SW – Roscado
150-300-600-800-1500
API 602 – ISO 15761
TAMAÑO
1/4″ a 2″
CONSTRUCCIÓN
PistónTapa Atornillada/ PistónTapa Soldada
EXTREMOS
Brida- SW – Roscado
CLASE ASME
150-300-600-800-1500
NORMAS INTERNACIONALES
API 602 – ISO 15761

INTERNATIONAL DESIGN STANDARDS

At ARFLU we comply with all international design standards.

DESIGN AND MANUFACTURE:

BS 1868: Specification for steel check valves (flanged and butt-welding ends) for the petroleum, petrochemical and allied industries.
ASME B 16.34: Valves-Flanged, Threaded, and Welding End.
API 602: Steel Gate, Globe and Check Valves for Sizes DN 100 and Smaller for the Petroleum and Natural Gas Industries
API 6D: Pipeline Valves. Pressure Test Specification.
API-594: Check Valves: Wafer, Wafer-Lug, and Double Flanged Type
BS-5352, Obsolete, replaced by ISO 15761
ISO 15761: Steel Gate, Globe and Check Valves for Sizes DN 100 and Smaller for the Petroleum and Natural Gas Industries (Equivalent to API 602)
API 602: Steel Gate, Globe and Check Valves for Sizes DN 100 and Smaller for the Petroleum and Natural Gas Industries (Equivalent to ISO 15761)

INSPECTION AND TEST:

API 6D: Pipeline Valves. Pressure Test Specification.
API 598: Valve Inspection and Testing.

FLANGE DIMENSION:

ASME B 16.5: Pipe Flanges and Flanged Fittings.
ASME B16.47: large diameter steel flanges: nps 26 through nps 60
MSS SP 44: Steel pipeline flanges

WELDED OR THREADED ENDS:

ASME B16.25: Buttwelding ends
ASMEB16.11: Forged fittings, socket-welding and threaded
ASME B1.20.1: Pipe threads general purpose

FACE TO FACE AND END TO END:

ASME B 16.10: Face-to-Face and End-to-End Dimensions of Valves.
API 6D: Pipeline Valves. Pressure Test Specification
API-594: Check Valves: Wafer, Wafer-Lug, and Double Flanged Type

* Other standards/materials upon request

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