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KDC 65-200 Pressure Control Valve
Brand: DanfossThe KDC valve is a pressure control valve. The valve controls the discharge pressure of the compressor to ensure fast build-up of pressure and lubrication pressure.
The valve also acts as a check valve in the discharge line of the compressor.
The KDC valve is force-controlled so that when pressure in the oil separator becomes psi: 29 (kPa: 200, bar: 2) higher than the suction pressure, the spring is compressed and the valve opens.
In low-pressure units (boosters), the spring requires a differential pressure of psi: 7(kPa: 50, bar: 0.5) for the valve to open.
Specifications
Brand
Approvals & Certifications
- BV
- CE
- CRN
- DNV
- EAC
- PED
Bonnet Material
- Steel - (P285QH EN 10222-4, ASTM LF2 A350)
Bore Size
- 1.25” to 8” (65 to 200 mm)
Bushing Material
- Cast Iron - Bushing for Spring, Front & Rear Bushing
Cone Material
- Cone Plate, Rod: Steel (11SMn30 EN 10087, ISO Typical 2 R683/9, ASTM Grade 1213 A29)
Differential Pressure
- psi: 21.76 to 29.01 (kPa: 150 to 200, bar: 1.5 to 2) - Min.
- psi: 7.252 (kPa: 50, bar: 0.5) - Spring
Enclosure, Body Material
- Valve House: Steel (G20Mn5QT EN 10213-3, ASTM LCC A352)
Flow Capacity
- 90 to 878 Cv
Flow Rate
- 78 to 757 Kv (m³/hour)
Gasket Material
- Fiber
- Non-Asbestos
Materials of Construction
- Aluminum - ID Plate
- Nylon - Washer
Nut & Bolt Material
- Steel
O-Ring Material
- Cloroprene (Neoprene, Standard KDC, Standard Valve)
- FKM (Hydrocarbon KDC)
- Viton (Hydrocarbon Valve)
Piston Material
- Piston Rod: Steel (11SMn30 EN 10087, S235JRG2 EN 10025, ISO Fe260B 630, Typical 2 R683/9, ASTM Grade C A283, Grade 1213 A29)
Pressure Range
- psig: 580 (kPa: 4,000, bar: 40)
Ring Material
- PTFE - Teflon Ring, Glide Ring
- Steel - Retaining Ring Bore, Spring
Screw Material
- Steel - Driv Screw
- Steel (11SMn30 EN 10087, ISO Typical 2 R683/9, ASTM Grade 1213 A29)
Spring Material
- Steel - Spring for Cone
Temperature Range
- -50° to 150° C (-58° to 302° F)
Welded Connection
- 2-1/2” Butt Weld ANSI (B 36.10 Schedule 40), DIN (2448)
- 3” Butt Weld ANSI (B 36.10 Schedule 40), DIN (2448)
- 4” Butt Weld ANSI (B 36.10 Schedule 40), DIN (2448)
- 5” Butt Weld ANSI (B 36.10 Schedule 40), DIN (2448)
- 6” Butt Weld ANSI (B 36.10 Schedule 40), DIN (2448)
- 8” Butt Weld ANSI (B 36.10 Schedule 40), DIN (2448)
