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DK CP

Product catalog summary

Overview: The DK/CP is a pneumatically actuated 2-way diaphragm valve designed for handling abrasive or dirty fluids. It features optimized internal geometry for enhanced fluid dynamic efficiency, resulting in increased flow rates and improved linearity in flow adjustment.

Technical Specifications:

Construction: Pneumatically actuated diaphragm valve with maximized flow rate body.
Size Range: DN 15 to 65.
Nominal Pressure: PN 10 with water at 20°C.
Temperature Range: PVC-U: 0°C to 60°C, PVC-C: 0°C to 100°C, PP-H: 0°C to 100°C, PVDF: -20°C to 120°C.
Coupling Standards: Compatible with various international standards for solvent welding, threading, and flanging.
Valve Material: Available in PVC-U, PVC-C, PP-H, and PVDF.
Diaphragm Material: EPDM, FPM, PTFE (NBR on request).

Design Features:

Connection system supports solvent welding, threaded, and flanged joints.
Stainless steel bonnet fastening screws protected by PE plugs to prevent corrosion.
Monolithic flanged structure reduces mechanical stress and enhances performance.
CDSA system for uniform pressure distribution, reducing operating torque and mechanical stress.

Pneumatic Actuator Specifications:

Construction: Single-acting (NC-NO) and double-acting (DA) pneumatic piston actuator.
Actuator Material: Body and bonnet made of PP-GR.
Control Air Pressure: Maximum NC: 6 bar, NO: 6 bar (DN 15-32) or 5 bar (DN 40-50), DA: 5 bar.
Working Temperature: -20°C to 50°C.

Functional Characteristics:

High visibility optical position indicator.
Compact and light piston actuator suitable for frequent operations.
High strength stainless steel stem with double seal O-Ring.
Actuator equipped with independent cartridge springs for uniform load distribution.

Performance Data:

Pressure Drop Graph: Illustrates the relationship between flow rate and pressure drop across different DN sizes.
KV100 Flow Coefficient: Indicates the flow rate of water at 20°C that results in a 1 bar pressure drop.

Valve Types:

DKOAM/CP DA: Double-acting diaphragm valve with fixed flanges, ANSI B16.5 cl. 150.
DKDF/CP NC and NO: Diaphragm valves with male ends for socket fusion, available in normally closed and open functions.
DKUIF/CP NC and NO: Diaphragm valves with female union ends for socket fusion, available in normally closed and open functions.
DKOF/CP NC and NO: Diaphragm valves with fixed flanges, drilled PN10/16, available in normally closed and open functions.
DKOAF/CP NC and NO: Diaphragm valves with fixed flanges, ANSI B16.5 cl. 150, available in normally closed and open functions.

Accessories: The document lists accessories such as mounting plates (PMDK), long and short spigot end connectors for various materials (PE100, PP-H, PVDF), and customization options for the valves.

Customization: Valves can be customized using a plate housed in a transparent protection cap. This plate can be used to indicate serial numbers, service indications, or customer-specific information.

Assembly and Disassembly Procedures: Detailed steps are provided for both disassembly and assembly of the valves. Key steps include isolating the valve, disconnecting pneumatic connections, unscrewing union nuts, and reassembling components with correct alignment and torque.

Components: An exploded view of the valve components is provided, listing parts such as the transparent cap, customization plate, O-rings, actuator, compressor, diaphragm seal, valve body, end connectors, union nuts, washers, bolts, protection plugs, and distance plate.

Installation Instructions for Valves:

General Safety Note: Ensure all operations on equipment under pressure or containing compressed springs are conducted safely for the operator.

Installation Steps:
1. Verify alignment of pipes to avoid mechanical stress on threaded joints.
2. Unscrew union nuts and place them on pipe segments.
3. Solvent weld or screw end connectors onto pipe ends.
4. Position valve body between end connectors, ensuring socket seal O-Rings remain in place.
5. Fully tighten union nuts.
6. Support pipework using FIP pipe clips or the valve's built-in carrier if necessary.
7. Connect compressed air as specified. For valves with electric accessories, refer to the accessory's technical manual.

Additional Notes:
- In confined spaces, align connections with piping.
- Before service, ensure valve body bolts are tightened to the recommended torque.

Contact Information:
FIP - Formatura Iniezione Polimeri
Loc. Pian di Parata, 16015 Casella Genova, Italy
Tel: +39 010 9621.1
Fax: +39 010 9621.209
Email: [email protected]
Website: www.fipnet.com

Catalog excerpts

PVC-U / PVC-C / PP-H / PVDF Pneumatically actuated 2-way diaphragm valve

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The new DK/CP diaphragm valve is particularly suitable for shutting off and regulating abrasive or dirty fluids. The new internal geometry of the body optimises fluid dynamic efficiency by increasing the flow rate and ensuring an optimum linearity of the flow adjustment curve. The DK/CP is extremely compact and very light. PNEUMATICALLY ACTUATED 2-WAY DIAPHRAGM VALVE • Connection system for solvent welding and for threaded and flanged joints • Optimised fluid dynamic design: maximum output flow rate thanks to the optimised efficiency of the fluid dynamics that characterise the new internal geometry...

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The new compact and light piston actuator in PP-GR makes the DK/CP the ideal choice for applications requiring very frequent valve operation and a long valve lifetime.

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High visibility graduated optical position indicator protected by transparent cap with seal O-ring 2 Light and compact piston actuator in PP-GR, ideal for heavy-duty applications in chemically aggressive environments with a diaphragm perimeter containment system that ensures the perfect compression of the rubber without any lateral expansion 3 Piston in high strength IXEF®. The high quality finishing of the external surface guarantees perfect slidability over the seal and ensures a long working life without any actuator maintenance 4 High strength stainless steel stem with double seal O-Ring. Floating...

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TECHNICAL DATA PRESSURE VARIATION ACCORDING TO TEMPERATURE For water and non-hazardous fluids to which the material is classified as CHEMICALLY RESISTANT. In other cases, a reduction of the nominal pressure PN is required (25 years with safety factor). PRESSURE DROP GRAPH Working temperature Pressure drop The Kv100 flow coefficient is the Q flow of litres per minute of water at a temperature of 20°C that will generate ∆p= 1 bar pressure drop at a certain valve position. The Kv100 values shown in the table are calculated with the valve completely open.

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TECHNICAL DATA RELATIVE FLOW COEFFICIENT GRAPH 100 90 Relative flow coefficient The relative flow coefficient is the flow rate through the valve as a function of the degree of valve opening. CONTROL PRESSURE ACCORDING TO WORKING PRESSURE DK/CP NC Minimum control pressure according to working pressure with EPDM/FPM diaphragm CONTROL PRESSURE ACCORDING TO WORKING PRESSURE DK/CP NO Minimum control pressure according to working pressure with EPDM/FPM diaphragm Working pressure Working pressure

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CONTROL PRESSURE ACCORDING TO WORKING PRESSURE DK/CP DA Minimum control pressure according to working pressure with EPDM/FPM diaphragm Nl: Normal-litre Volume at atmospheric Function type

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DKDV/CP NC Pneumatically actuated diaphragm valve with male ends, metric series. Normally Closed function

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DKDV/CP DA Pneumatically actuated diaphragm valve with male ends, metric series. Double-Acting function

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DKUIV/CP NO Pneumatically actuated diaphragm valve with female union ends, metric series. Normally Open function

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DKUFV/CP NC Pneumatically actuated diaphragm valve with BSP threaded female union ends. Normally Closed function

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DKUFV/CP DA Pneumatically actuated diaphragm valve with BSP threaded female union ends. DoubleActing function

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DKUAV/CP NO Pneumatically actuated diaphragm valve with female union ends for solvent welding, ASTM series. Normally Open function

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DKULV/CP NC Pneumatically actuated diaphragm valve with female union ends for solvent welding, BS series. Normally Closed function

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DKULV/CP DA Pneumatically actuated diaphragm valve with female union ends for solvent welding, BS series. Double-Acting function

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DKOV/CP NO Pneumatically actuated diaphragm valve with fixed flanges, drilled PN10/16. Face to face according to EN 558-1. Normally Open function

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DKOAV/CP NC Pneumatically actuated diaphragm valve with fixed flanges, drilled ANSI B16.5 cl. 150 #FF. Normally Closed function

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DKOAV/CP DA Pneumatically actuated diaphragm valve with fixed flanges, drilled ANSI B16.5 cl. 150 #FF. Double-Acting function d

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DKDC/CP NC Pneumatically actuated diaphragm valve with male ends for solvent welding, metric series. Normally Closed function

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DKDC/CP DA Pneumatically actuated diaphragm valve with male ends for solvent welding, metric series. Double-Acting function union ends for solvent welding, DKUIC/CP NC Pneumatically actuated diaphragm valve with female metric series. Normally Closed function

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