MAKING MODERN LIVING POSSIBLE Technical brochure Thermostatic expansion valves PHT www.danfoss.com
Contents Page Introduction........................................................................................ Features............................................................................................ Technical data...................................................................................... Ordering - Components............................................................................. Pilot orifice assembly............................................................................ Valve body, flange gaskets, flange bolts and screws.............................................. Thermostatic element (incl. accessory bag with screws).......................................... Flange set...................................................................................... Design - Function...................................................................................5 Identification.......................................................................................5 Capacity: R / 07C......................................................................................6 R07C..........................................................................................7 Ra..........................................................................................8 R0A / R507...................................................................................9 Dimensions and weights.......................................................................... 0 DKRCC.PD.AF0.A.0-50H58 Danfoss A/S (AC-SMC / mr), 08-00
Introduction PHT thermostatic expansion valves regulate the injection of refrigerant liquid into evaporators. Injection is controlled by the refrigerant superheat. Therefore the valves are especially suitable for liquid injection in dry evaporators where the superheat at the evaporator outlet is proportional to the evaporator load. Features Range: 0 to +50 C Equally applicable to freezing, refrigeration and air conditioning plant. Interchangeable orifice assembly - easier stocking - easy capacity matching - better service. Very tight main orifice Also used as solenoid valve (not PHT 00) - see the section "Design - Function" Rated capacities from 05 to 890 kw (0 to 50 TR) for R Can be supplied with MOP (Max. Operating Pressure) Protects the compressor motor against excessive evaporating pressure. Patented double contact bulb Fast and easy to install. Good temperature transfer from pipe to bulb. Technical data Refrigerants R, R70C, Ra, R0A / R507 Max. temperature Bulb, when valve is installed: 00 C Bulb, element not mounted: 60 C Min. temperature 50 C Max. test pressure PHT 85 and 5: PT = bar PHT 00: PT = 8 bar Maximum working pressure PHT 85 and 5: PS / MWP = 8 bar PHT 00: PS / MWP = 0 bar Superheat Static superheat SS can be adjusted with setting spindle ( ). The standard superheat setting SS is K. Danfoss A/S (RA-SMC / mr), 06-00 DKRCC.PD.AF0.A.0-50H58
Ordering Components. Orifice assembly for pilot valve. Valve body, flange gaskets, flange bolts and screws. Thermostatic element (incl. accessory bag with screws). Flange set PHT 85 Solder or weld flanges. Pilot orifice assembly Type PHT Code no. 067B790. Valve body, flange gaskets, flange bolts and screws Type Orifice no. Rated capacity ) R/ 07C Range N: 0 to +0 C Range N: 0 to +0 C Rated capacity ) Ra Range A: +0 to +50 C TR kw TR kw TR kw PHT 85 0 05 6 55 0 69 06H60 PHT 85 50 75 6 9 06H6 PHT 85 80 80 9 8 5 8 06H6 PHT 85 0 55 59 08 7 7 06H6 PHT 5 5 790 5 8 56 55 06H6 PHT 00 5 0 78 6 77 06H065 PHT 00 50 890 09 08 5 7 06H066 ) A PHT 85 with orifice no. 5 and a capacity of +5 +0% compared to orifice no. can be ordered. The code no. is 06H87. ) The rated capacity for range N is based on evaporating temperature t e = +5 C, condensing temperature t c = + C, and refrigerant liquid temperature ahead of valve t l = +8 C. The rated capacity for range A is based on evaporating temperature t e = +5 C, condensing temperature t c = + C, and refrigerant liquid temperature ahead of valve t l = +8 C. See following pages for extended capacity tables. Code no.. Thermostatic element (incl. accessory bag) Range Refrigerant Code no. m capillary tube 5 m capillary tube 0 to +0 C R/ R07C 067B0 067B0 R/ R07C, MOP 00 psig 067B00 067B06 R07C 067B 067B R07C, MOP 95 psig 067B Ra 067B0 067B5 Ra, MOP 55 psig 067B6 067B7 R0A / R507 067B9 +0 to +50 C Ra 067B8. Flange set Valve flange Flange type Weld flanges Solder flanges in. Code no. in. Code no. mm Code no. PHT 85 07N05 PHT 85 /8 07L09 8 07L08 PHT 85 /8 07L05 5 07L05 PHT 5 A / 07N0 PHT 00 A / 07N00 PHT 00 A 07N050 DKRCC.PD.AF0.A.0-50H58 Danfoss A/S (AC-SMC / mr), 08-00
Design Function General PHT valves have an interchangeable orifice assembly. PHT valves are built up of three interchangeable main components: I. Thermostatic element, pos. II. Orifice assembly, pos. III. Valve body with connections, pos. Including Insert, pos. 7 For the same valve type and refrigerant, the associated orifice assembly is suitable for all vers ions of valve body and in all evaporating temperature ranges. The charge in the thermostatic element depends on the evaporating temperature range. A teflon valve plate (pos. 0) in the main valve (not PHT 00) ensures a tight main orifice. All valves with external pressure equalization (pos. 5). The double contact bulb gives fast and precise reaction to temperature changes in the evaporator. It also makes fitting the bulb quick and easy. The valves are able to withstand the effects that normally occur with hot gas defrosting. To ensure long operating life, the valve cone and seat are made of a special alloy with particularly good wear qualities.. Thermostatic element (diaphragm). Interchangeable orifice assembly. Valve body. Superheat setting spindle (see instructions) 5. Ext. pressure equalizing connection with / in./6 mm flare nut 6. Pilot connection 7. Insert in main valve 8. Main spring 9. Bottom plug 0. Teflon valve plate PHT 85 To obtain a completely tight system an EVR must be installed in the equalization line. Identification The thermostatic element is fitted with a label (on top of the diaphragm).the code refers to the refrigerant for which the valve is designed: X = R / R07C Z = R07C N = Ra S = R0a / R507 The label gives valve type, evaporating temperature range, MOP point, refrigerant, and max. test pressure, PB/MWP. Thermostatic element label Danfoss A/S (RA-SMC / mr), 06-00 DKRCC.PD.AF0.A.0-50H58 5
Capacity Capacity in kw for range N: 0 C to +0 C Valve type PHTX 5 PHTX 00 PHTX 00 PHTX 5 PHTX 00 PHTX 00 PHTX 5 PHTX 00 PHTX 00 Orifice no. R / R07C 6 8 0 6 6 8 0 6 Evaporating temperature +0 C Evaporating temperature 0 C 67. 09 7 99 58 786 90 6 78. 9 5 8 55 95 95 5 605 08 688 6 08 66 505 7 8 6.6 6. 95. 00 0 9 759 78 87 9 695 95 96 6 5 80 7 096 09 6 57 876 87 0 Evaporating temperature 0 C 7.9 6 95 76 58 87 0 8.9 9 5 0 67 898 5 88. 8 8 677 957 60 Evaporating temperature 0 C.8 7.7 0 58 87 86 6.8 8.7 90 56 99 9.8 86.9 5 570 0 9 7 9 59 97 69 9.9 56 9 50 707 00 695 5. 9. 8 5 598 06 56 606 957 55 0 9.5 59 5 6 77 0 77 5. 9.6 58 9 6 0 60 6 98 76 7 97. 6 8 68 70 00 757 55.9 97. 7 6 6 67 5 56.7 9. 7 0 5 67 76.6 06 57 887 7 9.6 85.6 9 9 0 570 990 9. 5 9 698 0 685 0 69 65 76 0 87 80 8 60 8 8 9 5 88 95 80 80 6 997 Evaporating temperature 0 C 57.8 99.5 5 65 65 68 6. 09 66 87 5 7 68. 7 78 05 5 75 0 7.5 86 5 567 789 70 Evaporating temperature 0 C 0.6 5 79.9 8.7 66 6 655.6 59. 88.5 95.5 89 99 79 6. 6.7 9.7 0 09 0 775 8 66.9 99.7 5 80 9 9 0 95 86 50 08 7. 5 9 0 585 8 5 9. 69. 0 5 9 67 8 96 06 500 870 7 077 75. 9 95 59 88 0. 70. 07 9 0 7 857 for subcooling Δt sub The evaporator capacities used must be corrected if subcooling deviates from K. The corrected capacity can be obtained by dividing the required evaporator capacity by the correction factor below. Selections can then be made from the tables above. Note: Insufficient subcooling can produce flash gas. Δt sub K 0 K 5 K 0 K 5 K 0 K 5 K 0 K 5 K 50 K factor.00.06..5..5..5.9. Example Refrigerant = R Evaporator capacity Q e = 0 kw Subcooling = 0 K factor from table =.06 Corrected capacity = 0 :.06 0 kw 6 DKRCC.PD.AF0.A.0-50H58 Danfoss A/S (AC-SMC / mr), 08-00
Capacity Capacity in kw for range N: 0 C to +0 C Valve type PHTZ 5 PHTZ 00 PHTZ 00 PHTZ 5 PHTZ 00 PHTZ 00 PHTZ 5 PHTZ 00 PHTZ 00 Orifice no. R07C 6 8 0 6 6 8 0 6 Evaporating temperature +0 C Evaporating temperature 0 C 70 8 59 87 7.8 8.5 59 96 57 99 97.9 55 5 5 6 079 79 65. 0 69 6 55 77 5 7. 65. 97. 0 6 8 77 8 9 50 709 5 97 5 98 9 57 8 0 7 09 6 57 876 87 0 Evaporating temperature 0 C 75.6 7 97 79 588 85 5 8.9 9 5 0 67 898 5 88. 8 8 677 957 60 Evaporating temperature 0 C. 75. 6 9 87 6. 80.9 86 5 99 8.8 85. 9 05 559 99 6 58 908 0 7 9 5 69 98 66 50. 87.5 7 7 57 09 8 5 588 98 9.7 5 8 50 705 00 695 5.6 89.9 7 50 7 590 09 8 5 6 587 9 7 9.5 55 6 50 69 988 669 5 90.6 7 50 9 58 07 59 98 5 9 7 698 78 78.9 5 590 9 55 50.6 87. 58 00 95. 56 6 99 7 0 79 0 7 68 6 77 85 80 8 60 8 8 9 8 89 70 8 9 957 Evaporating temperature 0 C 58. 00 5 67 70 65 5 6. 09 66 87 5 7 67.5 6 76 0 56 7 9 69. 9 80 09 550 765 9 Evaporating temperature 0 C 0.6 5 79.9 8.7 66 6 655.9 58 86.7 9.6 8 9 705.7 6. 90.9 98.9 97 7 6. 6.6 9.7 05 05 779 5 88 9 80 87 987 70. 0 8 56 788 68 6.6 6.5 96.7 07 5 785 6 88 9 80 85 0 99 70.8 8 0 555 769 7 7 6.8 98. 09 6 788 for subcooling Δt sub The evaporator capacities used must be corrected if subcooling deviates from K. The corrected capacity can be obtained by dividing the required evaporator capacity by the correction factor below. Selections can then be made from the tables above. Note: Insufficient subcooling can produce flash gas. Δt sub K 0 K 5 K 0 K 5 K 0 K 5 K 0 K 5 K 50 K factor.00.08...7..9.5.5.57 Danfoss A/S (RA-SMC / mr), 06-00 DKRCC.PD.AF0.A.0-50H58 7
Capacity Capacity in kw for range N: 0 C to +0 C PHTN 5 PHTN 00 PHTN 00 PHTN 5 PHTN 00 PHTN 00 PHTN 5 PHTN 00 PHTN 00 Valve type Orifice no. Ra 6 8 0 6 8 0 Evaporating temperature +0 C Evaporating temperature 0 C 5 77 8 69 7 57 97 6 0 6 9 86 697 8 7 8 8 7 55 775 0 76 7 96 9 576 8 80 Evaporating temperature 0 C 7 7 69 7 0 59 6 6 95 0 06 78 7 09 9 5 78 86 77 7 8 67 508 895 Evaporating temperature 0 C 5 7 0 97 6 8 7 5 6 7 6 9 5 56 7 6 50 79 0 05 59 8 07 6 80 0 75 56 95 6 5 60 80 5 65 6 6 9 0 0 76 9 8 8 5 99 560 97 56 96 6 79 8 65 08 60 0 57 97 77 668 9 Evaporating temperature 0 C 5 6 69 6 9 5 9 50 75 8 6 9 6 5 8 89 6 6 655 Evaporating temperature 0 C 9 6 87 6 0 8 7 0 99 7 7 0 08 58 9 6 06 6 06 88 686 76 56 8 9 68 76 678 5 6 0 Capacity in kw for range A: +0 C to +50 C Evaporating temperature +50 C PHTN 5 PHTN 00 PHTN 00 PHTN 5 PHTN 00 PHTN 00 PHTN 5 PHTN 00 PHTN 00 PHTN 5 PHTN 00 PHTN 00 70 05 79 9 7 5 9 8 7 569 790 77 05 59 67 7 67 96 670 5 7 89 508 699 065 799 Evaporating temperature +0 C 6 0 65 86 85 77 0 87 7 87 68 950 55 00 56 5 5 698 058 67 08 68 7 6 78 765 8 05 55 78 60 89 78 86 89 77 76 85 70 07 78 6 7 778 56 9 6 0 5 658 0 Evaporating temperature +0 C 96 5 6 60 989 58 66 76 8 67 08 7 8 0 5 78 96 857 Evaporating temperature +0 C 77 5 98 7 578 85 00 88 5 0 6 9 55 9 5 9 7 677 99 608 Evaporating temperature +0 C Evaporating temperature 0 C 7 80 8 87 56 96 65 09 69 58 507 70 9 7 9 9 56 80 5 80 05 5 597 859 7 Evaporating temperature 0 C 0 5 77 8 6 7 657 7 07 8 0 75 8 8 8 6 85 5 9 5 88 6 06 568 99 8 7 5 609 876 5 5 90 6 50 8 58 06 8 66 00 7 6 808 5 90 7 78 599 0 60 0 58 06 75 669 7 65 0 69 5 506 7 6 7 90 6 55 76 5 9 98 58 9 9 699 09 66 67 7 55 7 for subcooling Δt sub The evaporator capacities used must be corrected if subcooling deviates from K. The corrected capacity can be obtained by dividing the required evaporator capacity by the correction fac tor below. Selections can then be made from the tables above. Note: Insufficient subcooling can produce flash gas. Δt sub K 0 K 5 K 0 K 5 K 0 K 5 K 0 K 5 K 50 K factor.00.08..9.5..7..8.5 8 DKRCC.PD.AF0.A.0-50H58 Danfoss A/S (AC-SMC / mr), 08-00
Capacity Capacity in kw for range N: 0 C to +0 C Valve type PHTS 5 PHTS 00 PHTS 00 PHTS 5 PHTS 00 PHTS 00 PHTS 5 PHTS 00 PHTS 00 Orifice no. R0A / R507 6 8 0 6 6 8 0 6 Evaporating temperature +0 C Evaporating temperature 0 C 60.9 96. 56 7 6 709. 7.6 69 6 5 90 8.7 5 7 56 9 0 6. 0 57 7 685 98. 50 5 5 69 07 595 07 6 66 58 67 099 70 70 78 77 697 766 Evaporating temperature 0 C 70. 6 79 77 55 760 56 75 9 98 556 796 5 78 9 99 57 8 70 Evaporating temperature 0 C.9 7.5 09 8 7 8 5. 77.8 7 7 6 50 875 6. 78.9 7 56 898 5 7 8 86 706 59 788 79. 0 0 9 580 8 87 7. 8.5 6 76 5 9 70 78 75 690 7 79. 0 00 8 57 8 7 6.5 80. 69 5 89 0 66 7 6 670 098 69 76.9 6 9 0 55 809 5 77.5 8 60 507 88 5.9 86. 6 7 5 65 0 7. 8 88 59 80 99 8.6 8.8 5 60 88 55 95 8. 5 56 60 895 9 5 9 8 69 95 5 9.9 50 0 0 66 990 58 97. 55 5 679 05 69 Evaporating temperature 0 C 55. 9.8 88 6 00 59. 00 5 0 58 65 095 6. 0 58 6 70 670 5 6.9 06 6 80 68 59 Evaporating temperature 0 C 0.7 5.7 80 85. 59 55 6.5 56.9 85 9.9 7 7 66.6 58.8 88. 96. 78 85 685.7 58.8 89.7 98. 8 95 70 97. 5 06 667 995 588 6 05 60 5 7 670 6 59. 88. 97.6 78 8 68 9.8 8 9 66 65 5 6. 0 56 6 656. 56.7 86. 9.6 7 8 677 for subcooling Δt sub The evaporator capacities used must be corrected if subcooling deviates from K. The corrected capacity can be obtained by dividing the required evaporator capacity by the correction factor below. Selections can then be made from the tables above. Note: Insufficient subcooling can produce flash gas. Δt sub K 0 K 5 K 0 K 5 K 0 K 5 K 0 K 5 K 50 K factor.00...9.7.6.5.6.7.78 Danfoss A/S (RA-SMC / mr), 06-00 DKRCC.PD.AF0.A.0-50H58 9
Dimensions and weights 5m capillary tube: PHT 85 Solder or weld flanges Weight.5 kg 5m capillary tube: 5m capillary tube: PHT 5 Weld flanges Weight 9.5 kg PHT 00 Weld flanges Weight 5.5 kg 0 DKRCC.PD.AF0.A.0-50H58 Danfoss A/S (AC-SMC / mr), 08-00
Danfoss A/S (RA-SMC / mr), 06-00 DKRCC.PD.AF0.A.0-50H58
DKRCC.PD.AF0.A.0-50H58 Danfoss A/S (AC-SMC / mr), 08-00