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Check Valves

Check Valves

Keep Supply is your trusted source for check valves. Check valves are responsible for ensuring proper flow within a fluid system. We carrier check valves from Danfoss, Refrigeration Specialties, Hansen and more. For all your parts needs, we are here to help.

Categories
Check Valve Flanges & Gaskets
Check Valve Flanges & Gaskets
Check Valve Piston & Seat Kits
Check Valve Piston & Seat Kits
Check Valve Replacement Parts
Check Valve Replacement Parts
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1059 items

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  1. Hansen HKS250/150, #250 Flange 1-1/2 Hansen HKS250/150, #250 Flange 1-1/2
    Hansen HKS250/150, #250 Flange 1-1/2" Socket Weld
    Web Price $222.20 List Price $330.00 List Price $330.00
  2. Hansen HKS250/200, #250 Flange 2 Hansen HKS250/200, #250 Flange 2
    Hansen HKS250/200, #250 Flange 2" Socket Weld
    Web Price $222.20 List Price $330.00 List Price $330.00
  3. Hansen HKS250/250-ACT, #250 Flange, 2-1/2 Hansen HKS250/250-ACT, #250 Flange, 2-1/2
    Hansen HKS250/250-ACT, #250 Flange, 2-1/2" SW KIT, ACT
    Add to Quote to request pricing
  4. Hansen HKS250/300, #250 Flange, 3 Socket Weld Kit Hansen HKS250/300, #250 Flange, 3 Socket Weld Kit
    Hansen HKS250/300, #250 Flange, 3 Socket Weld Kit
    Web Price $222.20 List Price $330.00 List Price $330.00
  5. Hansen HKS300/250, #300 Flange, 2-1/2 Socket Weld Kit Hansen HKS300/250, #300 Flange, 2-1/2 Socket Weld Kit
    Hansen HKS300/250, #300 Flange, 2-1/2 Socket Weld Kit
    Web Price $251.83 List Price $374.00 List Price $374.00
  6. Hansen HKT050/037, #050 Flange, 3/8 FPT Kit Hansen HKT050/037, #050 Flange, 3/8 FPT Kit
    Hansen HKT050/037, #050 Flange, 3/8 FPT Kit
    Web Price $65.32 List Price $97.00 List Price $97.00
  7. Hansen HKT050/075, #050 Flange, 3/4 FPT Kit Hansen HKT050/075, #050 Flange, 3/4 FPT Kit
    SHIPS TODAY
    Hansen HKT050/075, #050 Flange, 3/4 FPT Kit
    Web Price $67.28 List Price $97.00 List Price $97.00
  8. Hansen HKT100/100, #100 Flange, 1 FPT Kit Hansen HKT100/100, #100 Flange, 1 FPT Kit
    Hansen HKT100/100, #100 Flange, 1 FPT Kit
    Web Price $82.15 List Price $122.00 List Price $122.00
  9. Hansen HKT100/125, #100 Flange, 1-1/4 FPT Kit Hansen HKT100/125, #100 Flange, 1-1/4 FPT Kit
    Hansen HKT100/125, #100 Flange, 1-1/4 FPT Kit
    Web Price $82.15 List Price $122.00 List Price $122.00
  10. Hansen HSCK125C, 1-1/4 Stop/Check Valve, Socket Weld, SC Hansen HSCK125C, 1-1/4 Stop/Check Valve, Socket Weld, SC
    Hansen HSCK125C, 1-1/4 Stop/Check Valve, Socket Weld, SC
    Web Price $654.64 List Price $981.00 List Price $981.00
  11. Hansen HSCK125CE, 1-1/4 Hansen HSCK125CE, 1-1/4
    Hansen HSCK125CE, 1-1/4" Stop/Check Valve, Socket Weld, SC, CAT I, MODA, EF106
    Add to Quote to request pricing
  12. Hansen HSCK125H, 1-1/4 Stop/Check Valve, Socket Weld, Handwheel Hansen HSCK125H, 1-1/4 Stop/Check Valve, Socket Weld, Handwheel
    Hansen HSCK125H, 1-1/4 Stop/Check Valve, Socket Weld, Handwheel
    Web Price $654.64 List Price $981.00 List Price $981.00
  13. Hansen HSCK150CE, 1-1/2 Hansen HSCK150CE, 1-1/2
    Hansen HSCK150CE, 1-1/2" Stop/Check Valve, SC CE-CATII, MODH, EF107
    Add to Quote to request pricing
  14. Hansen HSCK150H, 1-1/2 Hansen HSCK150H, 1-1/2
    Hansen HSCK150H, 1-1/2" Stop/Check Valve, Socket Weld, Handwheel
    Web Price $702.79 List Price $1,058.00 List Price $1,058.00
  15. Hansen HSCK200CE, 2 Hansen HSCK200CE, 2
    Hansen HSCK200CE, 2" Stop / Check Valve, SC CE-CAT II, Mod H, EF107
    Add to Quote to request pricing
  16. Hansen HSCK250C, 2-1/2 Stop/Check Valve, Butt Weld, SC Hansen HSCK250C, 2-1/2 Stop/Check Valve, Butt Weld, SC
    Hansen HSCK250C, 2-1/2 Stop/Check Valve, Butt Weld, SC
    Web Price $1,249.91 List Price $2,011.00 List Price $2,011.00
  17. Hansen HSCK250CE, 2-1/2 Hansen HSCK250CE, 2-1/2
    Hansen HSCK250CE, 2-1/2" Stop/Check Valve Butt Weld SC, CE-CAT II, MODH, EF107
    Add to Quote to request pricing
  18. Hansen HSCK252CE, 2-1/2 Hansen HSCK252CE, 2-1/2
    Hansen HSCK252CE, 2-1/2" (65mm) Stop Check Valve, Butt Weld, SC, CE-CATII, MODH, EF107
    Add to Quote to request pricing
  19. Hansen HSCK300C, 3 Stop/Check Valve, Butt Weld, SC Hansen HSCK300C, 3 Stop/Check Valve, Butt Weld, SC
    Hansen HSCK300C, 3 Stop/Check Valve, Butt Weld, SC
    Web Price $1,609.17 List Price $2,589.00 List Price $2,589.00
  20. Hansen HSCK300CE, 3 Hansen HSCK300CE, 3
    Hansen HSCK300CE, 3" Stop/Check Valve, Butt Weld SC CE-CATII Mod H, EF107
    Add to Quote to request pricing
  21. Hansen HSCK300H, 3 Stop/Check Valve, Butt Weld, Handwheel Hansen HSCK300H, 3 Stop/Check Valve, Butt Weld, Handwheel
    Hansen HSCK300H, 3 Stop/Check Valve, Butt Weld, Handwheel
    Web Price $1,609.17 List Price $2,589.00 List Price $2,589.00
  22. Hansen HSCK400C, 4 Stop/Check Valve, Butt Weld, SC Hansen HSCK400C, 4 Stop/Check Valve, Butt Weld, SC
    SHIPS TODAY
    Hansen HSCK400C, 4 Stop/Check Valve, Butt Weld, SC
    Web Price $2,134.38 List Price $3,334.00 List Price $3,334.00
  23. Hansen HSCK400CE, 4 Hansen HSCK400CE, 4
    Hansen HSCK400CE, 4" Stop/Check Valve, Butt Weld, SC, CE-CATII, MODH EF107
    Add to Quote to request pricing
  24. Hansen HSCK400H, 4 Stop Check Valve, Butt Weld, Handwheel Hansen HSCK400H, 4 Stop Check Valve, Butt Weld, Handwheel
    Hansen HSCK400H, 4 Stop Check Valve, Butt Weld, Handwheel
    Web Price $2,072.22 List Price $3,334.00 List Price $3,334.00
  25. Hansen HSCK500C, 5 Stop/Check Valve, Butt Weld, SC Hansen HSCK500C, 5 Stop/Check Valve, Butt Weld, SC
    Hansen HSCK500C, 5 Stop/Check Valve, Butt Weld, SC
    Web Price $3,294.77 List Price $5,301.00 List Price $5,301.00
  26. Hansen HSCK500CE, 5 Stop Check Valve Butt Weld SC CE CATIII MOD.H EF108 Hansen HSCK500CE, 5 Stop Check Valve Butt Weld SC CE CATIII MOD.H EF108
    Hansen HSCK500CE, 5 Stop Check Valve Butt Weld SC CE CATIII MOD.H EF108
    Add to Quote to request pricing
  27. Hansen HSCK600C, 6 Hansen HSCK600C, 6
    Hansen HSCK600C, 6" Stop/Check Valve, Butt Weld, SC
    Web Price $4,163.69 List Price $6,699.00 List Price $6,699.00
  28. Hansen HSCK600CE, 6 Hansen HSCK600CE, 6
    Hansen HSCK600CE, 6" Stop/Check Valve Butt Weld, SC, CE-CATIII, MODH, EF108
    Add to Quote to request pricing
  29. Hansen HSCK600H, 6 Hansen HSCK600H, 6
    Hansen HSCK600H, 6" Stop Check Valve Butt Weld, Handwheel
    Web Price $4,163.69 List Price $6,699.00 List Price $6,699.00
  30. Hansen UK250, #250 Flange Union Kit Hansen UK250, #250 Flange Union Kit
    Hansen UK250, #250 Flange Union Kit
    Web Price $185.83 List Price $276.00 List Price $276.00
  31. Hansen UK400, #400 Flange Union Kit Hansen UK400, #400 Flange Union Kit
    Hansen UK400, #400 Flange Union Kit
    Web Price $270.00 List Price $401.00 List Price $401.00
  32. HCK1-ACT Hansen Suitable for Ammonia, R22, R134a, and other approved refrigerants - Frontview HCK1-ACT Hansen Suitable for Ammonia, R22, R134a, and other approved refrigerants - Frontview
    HCK1-ACT Hansen Suitable for Ammonia, R22, R134a, and other approved refrigerants
    As low as $354.74 List Price $946.00 List Price $946.00
  33. HCK1W-ACT Hansen Suitable for Ammonia, R22, R134a, and other approved refrigerants - Frontview HCK1W-ACT Hansen Suitable for Ammonia, R22, R134a, and other approved refrigerants - Frontview
    HCK1W-ACT Hansen Suitable for Ammonia, R22, R134a, and other approved refrigerants
    As low as $561.60 List Price $676.00 List Price $676.00
  34. HCK2-ACT Hansen Suitable for Ammonia, R22, R134a, CO2 and other approved refrigerants - Frontview HCK2-ACT Hansen Suitable for Ammonia, R22, R134a, CO2 and other approved refrigerants - Frontview
    HCK2-ACT Hansen Suitable for Ammonia, R22, R134a, CO2 and other approved refrigerants
    As low as $853.20 List Price $2,866.00 List Price $2,866.00
  35. HCK4-2-ACT-series Hansen HCK4-2 Flanged In-Line Check Valves - sideview HCK4-2-ACT-series Hansen HCK4-2 Flanged In-Line Check Valves - sideview
    HCK4-2-ACT-series Hansen HCK4-2 Flanged In-Line Check Valves
    As low as $125.45 List Price $151.00 List Price $151.00
  36. HCK5D-ACT Hansen Suitable for Ammonia, R22, R134a, CO2 and other approved refrigerants - HCK5D-ACT inside view HCK5D-ACT Hansen Suitable for Ammonia, R22, R134a, CO2 and other approved refrigerants - HCK5D-ACT inside view
    HCK5D-ACT Hansen Suitable for Ammonia, R22, R134a, CO2 and other approved refrigerants
    As low as $0.00 List Price $2,649.00 List Price $2,649.00
  37. HCK5DW Hansen Suitable for Ammonia, R22, R134a, CO2 and other approved refrigerants -HCK5D-ACT inside view HCK5DW Hansen Suitable for Ammonia, R22, R134a, CO2 and other approved refrigerants -HCK5D-ACT inside view
    HCK5DW Hansen Suitable for Ammonia, R22, R134a, CO2 and other approved refrigerants
    As low as $1,847.63 List Price $4,965.00 List Price $4,965.00
  38. HKN100/075-ACT Hansen #100 Flange, 3/4 HKN100/075-ACT Hansen #100 Flange, 3/4
    HKN100/075-ACT Hansen #100 Flange, 3/4 Weld Neck Kit - ACT
    Add to Quote to request pricing
  39. HKN200/150-ACT Hansen #150 Flange, 1-1/2 HKN200/150-ACT Hansen #150 Flange, 1-1/2
    HKN200/150-ACT Hansen #200 Flange, 1-1/2 Weld Neck Kit - ACT
    Add to Quote to request pricing
  40. HKS100/075-ACT Hansen #100 Flange, 3/4 HKS100/075-ACT Hansen #100 Flange, 3/4
    SHIPS TODAY
    HKS100/075-ACT Hansen #100 Flange, 3/4 Socket Welded Kit - ACT
    Add to Quote to request pricing
  41. HKS100/125-ACT Hansen #100 Flange, 1-1/4 HKS100/125-ACT Hansen #100 Flange, 1-1/4
    HKS100/125-ACT Hansen #100 Flange, 1-1/4 Socket Welded Kit - ACT
    Add to Quote to request pricing
  42. HKSxxx-ACT Hansen Flange Kit - Flanges with bolts HKSxxx-ACT Hansen Flange Kit - Flanges with bolts
    HKSxxx-ACT Hansen Flange Kit
    As low as $0.00 List Price $394.00 List Price $394.00
  43. HKT050/075-ACT Hansen #050 Flange, 3/4 HKT050/075-ACT Hansen #050 Flange, 3/4
    HKT050/075-ACT Hansen #050 Flange, 3/4 FPT Kit - ACT
    Add to Quote to request pricing
  44. HKT100/075-ACT Hansen #100 Flange, 3/4 HKT100/075-ACT Hansen #100 Flange, 3/4
    HKT100/075-ACT Hansen #100 Flange, 3/4 FPT Kit - ACT
    Add to Quote to request pricing
  45. HSCK-ACT Hansen Stop/Check Valve - Frontview HSCK-ACT Hansen Stop/Check Valve - Frontview
    HSCK-ACT Hansen Stop/Check Valve
    As low as $562.43 List Price $1,012.00 List Price $1,012.00
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  1. In Stock, Ships Today 39items
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  1. Apollo 1item
  2. Champion Valves 27items
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  8. M&M Refrigeration 1item
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Category
  1. Check Valves 856items
  2. Check Valve Piston & Seat Kits 10items
  3. Check Valve Replacement Parts 1item
  4. Clearance / Liquidation 1item
  5. Flanges & Gaskets 140items
  6. Gas-Powered Valves 5items
  7. Quote Only 2items
  8. Solenoid Valve Flanges & Gaskets 16items
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  10. Valves 25items
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  1. 1" 1item
  2. 1-1/4" 1item
  3. 1 1/2" 1item
Port Size
  1. 1/2" 21items
  2. 3/4" 64items
  3. 5/8" 8items
  4. 7/8" 2items
  5. 1" 54items
  6. 1-1/4" 77items
  7. 1-1/2" 26items
  8. 1-5/8" 37items
  9. 2" 86items
  10. 2-1/4" 4items
  11. 2-1/2" 78items
  12. 3" 74items
  13. 4" 63items
  14. 5" 23items
  15. 6" 20items
  16. 8" 2items
  17. 1-1/2" (marked with CE) 2items
  18. 2" (marked with CE) 1item
  19. 2-1/2" (marked with CE) 1item
Body Material
  1. ACT 4items
  2. Cast Steel (A-352 GR, LCB) 103items
  3. Ductile Iron (GGG-40.3) 43items
  4. Gray Iron 123items
  5. GGG-40.3 38items
  6. Stainless Steel 1item
Model
  1. MS-4 2items
  2. MS-6 2items
  3. MS-8 1item
  4. MS-10 2items
  5. MS-12 2items
  6. MS-14 2items
  7. MS-18 2items
  8. MS-22 2items
  9. MS-26 2items
  10. MS-34 2items
  11. MS-42 2items
  12. MS-50 2items
  13. SDR 9items
  14. NZW 17items
Connection Pipe Size
  1. 2" 1item
  2. 1-1/4" (marked with CE) 1item
Connection
  1. N/A 6items
  2. 1/2" ODS 1item
  3. 1-1/8" ODS 2items
  4. 1-1/2" FPT Female Flange 1item
  5. 1-1/2" FPT Male Flange 1item
  6. 1-1/2" SW Female Flange 2items
  7. 1-3/8" ODS 2items
  8. 1-5/8" ODS 2items
  9. 2-1/8" ODS 2items
  10. 2-5/8" ODS 1item
  11. 3/8" ODS 1item
  12. 5/8" ODS 1item
  13. 7/8" ODS 1item
  14. 1" FPT Female Flange 1item
  15. 1" FPT Flange Union Kit 2items
  16. 1" FPT Male Flange 1item
  17. 1" SW Female Flange 3items
  18. 1" SW Flange Union Kit 1item
  19. 1" SW Male Flange 1item
  20. 1/2" FPT Female Flange 1item
  21. 1/2" FPT Male Flange 1item
  22. 1/2" SW Female Flange 1item
  23. 1/2" SW Flange Union Kit 1item
  24. 1/2" SW Male Flange 1item
  25. 1-1/4" FPT Female Flange 1item
  26. 1-1/4" FPT Flange Union Kit 1item
  27. 1-1/4" SW Female Flange 2items
  28. 1-3/8" ODS Female Flange 1item
  29. 1-3/8" ODS Flange Union Kit 1item
  30. 1-3/8" ODS Male Flange 1item
  31. 1-5/8" ODS Female Flange 1item
  32. 1-5/8" ODS Flange Union Kit 2items
  33. 1-5/8" ODS Male Flange 1item
  34. 2" FPT Female Flange 1item
  35. 2" FPT Male Flange 1item
  36. 2" SW Female Flange 2items
  37. 2-1/2" SW Female Flange 1item
  38. 2-1/2" SW Flange Union Kit 2items
  39. 2-1/8" ODS Female Flange 1item
  40. 2-1/8" ODS Flange Union Kit 2items
  41. 2-1/8" ODS Male Flange 1item
  42. 2-5/8" ODS Female Flange 1item
  43. 2-5/8" ODS Flange Union Kit 2items
  44. 2-5/8" ODS Male Flange 1item
  45. 3/4" FPT Female Flange 2items
  46. 3/4" FPT Male Flange 1item
  47. 3/4" SW Female Flange 1item
  48. 3/4" SW Flange Union Kit 2items
  49. 3/4" SW Male Flange 1item
  50. 3-1/8" ODS Female Flange 1item
  51. 3-1/8" ODS Flange Union Kit 1item
  52. 3-1/8" ODS Male Flange 1item
  53. 4" SW Male Flange 1item
  54. 3/4" 4items
  55. 1" 2items
  56. 1-1/2" 1item
  57. 2-1/2" 2items
  58. 3-1/8" 4items
  59. 3-5/8" 2items
  60. 5" 2items
  61. 4-1/8" 4items
  62. 2-1/8" 2items
Valve Body Type
  1. Carbon Steel 17items
  2. Ductile Iron 9items
Flange Size
  1. No Flanges 31items
  2. 1/2" 8items
  3. 3/4" 17items
  4. 3/8" 1item
  5. 1" 10items
  6. 1-1/4" 10items
  7. 1-1/2" 12items
  8. 1-5/8" 1item
  9. 2" 12items
  10. 2-1/2" 2items
  11. 2-1/8" 1item
  12. 3" 7items
  13. 4" 4items
  14. 1" x 1-1/4" 1item
  15. 1-1/4" x 1" 1item
  16. 2" x 1-1/2" 1item
Port Size (MM)
  1. 15mm 18items
  2. 20mm 37items
  3. 25mm 37items
  4. 32mm 54items
  5. 40mm 35items
  6. 50mm 59items
  7. 65mm 58items
  8. 80mm 48items
  9. 100mm 37items
  10. 125mm 14items
  11. 150mm 15items
  12. 200mm 2items
Connection Style
  1. None 6items
  2. Socket-Weld 5items
  3. Weld Neck 2items
  4. Weld-End 2items
  5. ODS 2items
  6. Copper 7items
Flange Style
  1. N/A 23items
  2. No Flanges 1item
  3. With Flanges 1item
  4. Oval 10items
  5. Square 21items
Strainer Type
  1. Without Strainer 230items
  2. With Strainer 26items
  3. No Strainer 23items
Flange Connection
  1. N/A 31items
  2. FPT 14items
  3. Socket-Weld 34items
  4. Weld Neck 7items
  5. ODC 2items
  6. Socket-Weld x Socket-Weld 3items
  7. Socket Inlet x Socket Inlet 1item
Spring
  1. 705A-20L 3items
  2. 705A-30L 1item
  3. 705A-2L 1item
  4. 705A-60L 1item
  5. 705A-10L 1item
  6. 705A-110L 1item
  7. 705A-165L 1item
  8. 705B-30L 1item
  9. 705B-3L 2items
  10. 705B-10L 2items
  11. 705-10L 2items
  12. 705-20L 2items
  13. 705-35L 3items
  14. 705-1L 1item
  15. 705-5L 4items
  16. 705-90L 2items
  17. 705-50L 1item
  18. 705-60L 4items
  19. 705-70L 3items
  20. 705-130L 1item
  21. #5 1item
  22. #10 1item
  23. 316 Stainless Steel 26items
Inlet
  1. 1" 1item
  2. 1-1/2" 1item
  3. 1-1/4" 1item