Data sheet Pressure relief controller for oil V22D28 (PN 16, 25) Description The controller has a control valve, an actuator with one control diaphragm and a spring for pressure setting. Features: - safe and reliable operation - pressure relieved valves - maintenance free - self acting - high control accuracy - without external impulse tubes V22D28 is a self-acting pressure relief controller primarily for use in oil applications such as light and heavy oil, fuel oil and especially high viscosity media. In case of heavy oil there is no need to heat it with steam. It can be used for maintaning pressure in heating and cooling plants. Main data: DN 15-65 k VS 3.6-55 m 3 /h PN 16, 25 Setting range: 0.5-2.5 bar/1-5 bar/3-11 bar/10-16 bar/12-20 bar Temperature: - Light/heavy/fuel oil/high viscosity media: 2... 140 C Connections: - Flange The controller is normally closed and opens on rising pressure. Ordering Example: Pressure relief controller for oil, DN 15, k VS 3.6, PN 16, 1-5 bar, t max 140 C, flange. - 1 V22D28 DN 15 controller Code no: 065-4311 The controller will be delivered completely assembled. V22D28 PN 16 Controller Picture DN (mm) k VS (m 3 /h) Connection 15 3.6-065-4311 20 6.6 065-4491 065-4312 25 9.3 065-4313 32 13.5 Flanges acc. to EN 1092-2 0.5-2.5 1-5 065-4314 40 23.5-065-4315 50 35 065-4316 65 55 065-4317 V22D28 PN 16 Controller Picture DN (mm) k VS (m 3 /h) Connection 15 3.6 065-4304 20 6.6 065-4305 065-4486 25 9.3 065-4306 065-4487 32 13.5 Flanges acc. to EN 1092-2 3-11 065-4307 10-16 065-4492 40 23.5 065-4308 065-4488 50 35 065-4309 65 55 065-4310 - DH-SMT/SI VD.CC.N3.02 Danfoss 05/2010 1
Ordering (continuous) V22D28 PN 25 Controller Picture DN (mm) k VS (m 3 /h) Connection 15 3.6 065-4570 20 6.6 065-4571 25 9.3 Flanges acc. to 065-4572 EN 1092-2 12-20 32 13.5 065-4573 40 23.5 065-4574 50 35 065-4575 Service kits Picture Type designation Valve V22 Type designation Actuator D28 oil DN (mm) k VS (m 3 /h) Connection 15 3.6 065-4550 20 6.6 065-4551 25 9.3 Flanges acc. to EN 065-4552 32 13.5 1092-2 065-4553 40 23.5 065-4554 50 35 065-4555 PN Size (cm 2 ) 80 1-5 003G1049 16 32 3-11 003G1048 32 10-16 003G1601 25 35 12-20 003G1602 Technical data Valve Nominal diameter DN 15 20 25 32 40 50 65 k vs value 3.6 6.6 9.3 13.5 23.5 35 55 m 3 /h Nominal flow 1.5 3.0 4.5 7.0 11 18 27 Nominal pressure PN 25 Max. differential pressure bar 16 Medium Light/heavy/fuel oil/high viscosius media Medium ph Min 7/max 10 Medium temperature C 2 140 Connections Flange Materials Valve body EN-GJS-400-18-LT (GGG 40.3) Valve seat Stainless steel (1.4104) Valve cone Stainless steel (1.4104) Sealing Metal Actuator Actuator size cm 2 32 35 80 yellow - - 0.5-2.5 Diff. pressure setting silver 3-11 - 1-5 ranges and spring bar colours black 10-16 - - black/blue - 12-20 - Nominal pressure PN 16 25 16 Materials Housing Steel, mat. No. 1.0338, chromated EN-GJS-400-18-LT (GGG 40.3) + 1.4404 Steel, mat. No. 1.0338, chromated Diaphragm (rolling) / bellows FKM 1.4571 FKM 2 VD.CC.N3.02 Danfoss 05/2010 DH-SMT/SI
Application principle Installation positions Controller can be installed in horizontal pipes only with a pressure actuator oriented upwards. This installation position enables the transfer of media temperature to the actuator. Pressure temperature diagram PN 16 EN-GJS-400-18-LT (GGG 40.3) working area PN 25 working area EN-GJS-400-18-LT (GGG 40.3) DH-SMT/SI VD.CC.N3.02 Danfoss 05/2010 3
Design PN 16 1. Valve body 2. Valve seat 3. Valve cone 4. Valve stem 5. Union nut 6. Actuator stem 7. Diaphragm plate 8. Rolling diaphragm 9. Larger diaphragm plate 10. Diaphragm housing 11. Setting spring 12. Nut for setpoint adjustment 12 7 11 PN 25 1. Valve body 2. Valve seat 3. Valve cone 4. Valve stem 5. Union nut 6. Actuator stem 7. Spring support plate 8. Bellow 9. Cover plate 10. Bellows housing 11. Setting spring 12. Spindle for setpoint adjustment 8 12 11 10 9 7 6 5 8 9 10 6 5 4 4 3 2 3 2 1 1 V22D28-PN 16 V22D28-PN 25 Function The pressure in front of the control valve is being internally transferred to the actuator chamber and act on control diaphragm. On the other side of the diaphragm atmospheric pressure is acting. Control valve is normally closed. It opens on rising pressure and closes on falling pressure to maintain constant pressure before the control valve. Settings Pressure setting Pressure setting is being done by the adjustment of the setting spring for pressure control. The adjustment can be performed on the basis of pressure indicator. 4 VD.CC.N3.02 Danfoss 05/2010 DH-SMT/SI
Dimensions Ø 195 Ø 172 Ø 172 H H 1 H 2 = 3.0-11 (DN 15-65) = 10-16 (DN 15-40) L = 0.5-2.5 (DN 20) = 1.0-5.0 (DN 15-65) L = 12-20 (DN 15-50) L DN 15 20 25 32 40 50 65 L 130 150 160 180 200 230 290 H 580 585 595 605 615 620 630 mm H 1 585 590 600 610 620 625 635 H 2 765 770 780 790 800 805 815 DH-SMT/SI VD.CC.N3.02 Danfoss 05/2010 5
6 VD.CC.N3.02 Danfoss 05/2010 DH-SMT/SI
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8 VD.CC.N3.02 Produced by Danfoss A/S 05/2010