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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. CK-120S20YMSN Parker - Refrigerating Specialties 3/4 CK-120S20YMSN Parker - Refrigerating Specialties 3/4
    CK-120S20YMSN Refrigerating Specialties (RS) 3/4 CK-1, 3/4 Socket-Weld MAR Strainer
    Web Price $845.30 List Price $1,303.00 List Price $1,303.00
  2. CK-120X00NMSN Parker - Refrigerating Specialties 3/4 CK-120X00NMSN Parker - Refrigerating Specialties 3/4
    CK-120X00NMSN Refrigerating Specialties (RS) 3/4 CK-1 MAR Strainer
    Web Price $491.33 List Price $737.00 List Price $737.00
  3. CK-125S20NNSN Parker - Refrigerating Specialties 1 CK-125S20NNSN Parker - Refrigerating Specialties 1
    CK-125S20NNSN Refrigerating Specialties (RS) 1 CK-1, 3/4 Socket-Weld
    Web Price $571.39 List Price $858.00 List Price $858.00
  4. CK-140X00YNSN Parker - Refrigerating Specialties 1-5/8 CK-140X00YNSN Parker - Refrigerating Specialties 1-5/8
    CK-140X00YNSN Refrigerating Specialties (RS) 1-5/8 CK-1 Strainer
    Web Price $1,392.84 List Price $2,333.00 List Price $2,333.00
  5. CK-165S65YNSN Parker - Refrigerating Specialties 2-1/2 CK-165S65YNSN Parker - Refrigerating Specialties 2-1/2
    CK-165S65YNSN Refrigerating Specialties (RS) 2-1/2 CK-1, 2-1/2 Socket-Weld Strainer
    Web Price $2,136.12 List Price $3,578.00 List Price $3,578.00
  6. CK-175C27NNSN Parker - Refrigerating Specialties 3 CK-175C27NNSN Parker - Refrigerating Specialties 3
    CK-175C27NNSN Refrigerating Specialties (RS) 3 CK-1, 3-1/8 Copper
    Web Price $2,175.52 List Price $3,644.00 List Price $3,644.00
  7. CK-175K29NNSN Parker - Refrigerating Specialties 3 CK-175K29NNSN Parker - Refrigerating Specialties 3
    CK-175K29NNSN Refrigerating Specialties (RS) 3 CK-1, 3-5/8 Ods
    Web Price $1,836.42 List Price $3,076.00 List Price $3,076.00
  8. CK-1A0C33NNSN Parker - Refrigerating Specialties 4 CK-1A0C33NNSN Parker - Refrigerating Specialties 4
    CK-1A0C33NNSN Refrigerating Specialties (RS) 4 CK-1, 4-1/8 Copper
    Web Price $3,123.58 List Price $5,232.00 List Price $5,232.00
  9. CK150F50NNSN Parker - Refrigerating Specialties 2 CK1 2FPT CK150F50NNSN Parker - Refrigerating Specialties 2 CK1 2FPT
    CK150F50NNSN Parker - Refrigerating Specialties 2 CK1 2FPT
    Web Price $1,027.46 List Price $1,721.00 List Price $1,721.00
  10. CK425K07NSN Parker - Refrigerating Specialties 1 CK4A4 7/8ODS CK425K07NSN Parker - Refrigerating Specialties 1 CK4A4 7/8ODS
    CK425K07NSN Parker - Refrigerating Specialties 1 CK4A4 7/8ODS
    Web Price $307.33 List Price $461.00 List Price $461.00
  11. CK450C17NSN Parker - Refrigerating Specialties 2 CK450C17NSN Parker - Refrigerating Specialties 2
    CK450C17NSN Refrigerating Specialties (RS) 2 CK4A8 2-1/8 Copper
    Web Price $824.27 List Price $1,268.00 List Price $1,268.00
  12. CK450K21NSN Parker - Refrigerating Specialties 2 CK4A8 2-5/8ODS CK450K21NSN Parker - Refrigerating Specialties 2 CK4A8 2-5/8ODS
    CK450K21NSN Parker - Refrigerating Specialties 2 CK4A8 2-5/8ODS
    Web Price $622.95 List Price $940.00 List Price $940.00
  13. CK450W38NPN Parker - Refrigerating Specialties 2 CK450W38NPN Parker - Refrigerating Specialties 2
    CK450W38NPN Refrigerating Specialties (RS) 2 CK4A8 DN 1-1/2 Weld Neck
    Web Price $687.63 List Price $1,044.00 List Price $1,044.00
  14. CK475C27NSN Parker - Refrigerating Specialties 3 CK475C27NSN Parker - Refrigerating Specialties 3
    CK475C27NSN Refrigerating Specialties (RS) 3 CK4A0 3-1/8 Copper
    Web Price $1,401.19 List Price $2,347.00 List Price $2,347.00
  15. CK475X00MSNB Parker - Refrigerating Specialties 3 CK475X00MSNB Parker - Refrigerating Specialties 3
    CK475X00MSNB Refrigerating Specialties (RS) 3 CK4A0 Mar with Bolts 201615
    Web Price $956.23 List Price $1,490.00 List Price $1,490.00
  16. CK4A-DN-series Parker - Refrigerating Specialties Check Valve CK4A-DN Series - image 1 CK4A-DN-series Parker - Refrigerating Specialties Check Valve CK4A-DN Series - image 1
    CK4A-DN-series Parker - Refrigerating Specialties Check Valve CK4A-DN Series
    As low as $685.15 List Price $1,383.00 List Price $1,383.00
  17. CK4A-series Parker - Refrigerating Specialties Check Valve CK4A Series - image 1 CK4A-series Parker - Refrigerating Specialties Check Valve CK4A Series - image 1
    CK4A-series Parker - Refrigerating Specialties Check Valve CK4A Series
    As low as $824.27 List Price $3,424.00 List Price $3,424.00
  18. CK4A0C33NSN Parker - Refrigerating Specialties 4 CK4A0C33NSN Parker - Refrigerating Specialties 4
    CK4A0C33NSN Refrigerating Specialties (RS) 4 CK4A16 4-1/8 Copper
    Web Price $2,044.18 List Price $3,424.00 List Price $3,424.00
  19. CKS20W20NNPN Parker - Refrigerating Specialties 3/4 CKS20W20NNPN Parker - Refrigerating Specialties 3/4
    CKS20W20NNPN Refrigerating Specialties (RS) 3/4 CK-1 DN, 3/4 Weld Neck with .109 Piston
    Web Price $572.02 List Price $859.00 List Price $859.00
  20. CKS20W25NNPN Parker - Refrigerating Specialties 3/4 CKS20W25NNPN Parker - Refrigerating Specialties 3/4
    CKS20W25NNPN Refrigerating Specialties (RS) 3/4 CK-1 DN, 1 Weld Neck with .109 Piston
    Web Price $572.02 List Price $859.00 List Price $859.00
  21. CKS32S38NNPN Parker - Refrigerating Specialties 1-1/4 CKS32S38NNPN Parker - Refrigerating Specialties 1-1/4
    CKS32S38NNPN Refrigerating Specialties (RS) 1-1/4 CK-1 DN with .109 Piston
    Web Price $803.16 List Price $1,233.00 List Price $1,233.00
  22. CKSA1SP1NNSN Parker - Refrigerating Specialties 5 CKSA1SP1NNSN Parker - Refrigerating Specialties 5
    CKSA1SP1NNSN Refrigerating Specialties (RS) 5 CK-1, 5 Socket-Weld with .109 Piston
    Web Price $5,235.22 List Price $8,769.00 List Price $8,769.00
  23. CKSA1X00NNSN Parker - Refrigerating Specialties 5 CKSA1X00NNSN Parker - Refrigerating Specialties 5
    CKSA1X00NNSN Refrigerating Specialties (RS) 5 CK-1 with .109 Piston
    Web Price $3,992.24 List Price $6,687.00 List Price $6,687.00
  24. F6315 Henry Magni-Chek Valve MS-34 for 2-1/8 F6315 Henry Magni-Chek Valve MS-34 for 2-1/8
    F6315 Henry Magni-Chek Valve MS-34 for 2-1/8" O.D. Tube Size
    Add to Quote to request pricing
  25. F6316 Henry Magni-Chek Valve MS-42 for 2-5/8 F6316 Henry Magni-Chek Valve MS-42 for 2-5/8
    F6316 Henry Magni-Chek Valve MS-42 for 2-5/8" O.D. Tube Size
    Add to Quote to request pricing
  26. Hansen 20-1205, Transformer-115/60HZ-24V/60HZ MXE Hansen 20-1205, Transformer-115/60HZ-24V/60HZ MXE
    SHIPS TODAY
    Hansen 20-1205, Transformer-115/60HZ-24V/60HZ MXE
    Web Price $184.13
  27. Hansen 20-2658, Kit, Flange, 1/2 Socket Weld, Sporlan Hansen 20-2658, Kit, Flange, 1/2 Socket Weld, Sporlan
    Hansen 20-2658, Kit, Flange, 1/2 Socket Weld, Sporlan
    Web Price $215.13
  28. Hansen 30-1111, 1/2FPT Flange Kit for Sporlan TXV Hansen 30-1111, 1/2FPT Flange Kit for Sporlan TXV
    Hansen 30-1111, 1/2FPT Flange Kit for Sporlan TXV
    Add to Quote to request pricing
  29. Hansen 50-1215, Kit, Bonnet, 3/4 Hansen 50-1215, Kit, Bonnet, 3/4
    Hansen 50-1215, Kit, Bonnet, 3/4" - 1-1/4, Check, MVP
    Web Price $297.95
  30. Hansen 50-1216, Kit, Bonnet, 1-1/2 Hansen 50-1216, Kit, Bonnet, 1-1/2
    Hansen 50-1216, Kit, Bonnet, 1-1/2" - 2, Check, MVP
    Web Price $470.67
  31. Hansen 50-1217, Kit, Bonnet, 3/4 Hansen 50-1217, Kit, Bonnet, 3/4
    Hansen 50-1217, Kit, Bonnet, 3/4" - 1-1/4, Blank, MVP
    Web Price $297.95
  32. Hansen 50-2316, Spring, 2 Stop-Check Valve Hansen 50-2316, Spring, 2 Stop-Check Valve
    Hansen 50-2316, Spring, 2 Stop-Check Valve
    Add to Quote to request pricing
  33. Hansen 50-2416, Stem Assembly, 1-1/2-2 Stop/Check Valve Hansen 50-2416, Stem Assembly, 1-1/2-2 Stop/Check Valve
    Hansen 50-2416, Stem Assembly, 1-1/2-2 Stop/Check Valve
    Add to Quote to request pricing
  34. Hansen 70-0021, (70-0545) 1/2X 1/4FPT Flange Hansen 70-0021, (70-0545) 1/2X 1/4FPT Flange
    Hansen 70-0021, (70-0545) 1/2X 1/4FPT Flange
    Add to Quote to request pricing
  35. Hansen 70-0022, Flange, #050 x 3/8 Hansen 70-0022, Flange, #050 x 3/8
    Hansen 70-0022, Flange, #050 x 3/8" FPT
    Add to Quote to request pricing
  36. Hansen 70-0023, #50 Flange, 1/2 FPT Hansen 70-0023, #50 Flange, 1/2 FPT
    Hansen 70-0023, #50 Flange, 1/2 FPT
    Add to Quote to request pricing
  37. Hansen 70-0024, #50 Flange, 3/4 FPT Hansen 70-0024, #50 Flange, 3/4 FPT
    Hansen 70-0024, #50 Flange, 3/4 FPT
    Add to Quote to request pricing
  38. Hansen 70-0114, 1 Hansen 70-0114, 1
    Hansen 70-0114, 1" x 1-1/4" FPT Flange
    Add to Quote to request pricing
  39. Hansen 70-0115, 1X 3/4 Socket Weld Flange Hansen 70-0115, 1X 3/4 Socket Weld Flange
    Hansen 70-0115, 1X 3/4 Socket Weld Flange
    Add to Quote to request pricing
  40. Hansen 70-0116, Flange, #100 x 1 Socket Weld, MX Hansen 70-0116, Flange, #100 x 1 Socket Weld, MX
    Hansen 70-0116, Flange, #100 x 1 Socket Weld, MX
    Add to Quote to request pricing
  41. Hansen 70-0139, 1/2X1/4 Female Flange CP Hansen 70-0139, 1/2X1/4 Female Flange CP
    Hansen 70-0139, 1/2X1/4 Female Flange CP
    Add to Quote to request pricing
  42. Hansen 70-0141, 1/2 Hansen 70-0141, 1/2
    Hansen 70-0141, 1/2" x 1/2" Female Flange
    Add to Quote to request pricing
  43. Hansen 70-0178, Q-MIN Flange Union Assembly 1 Socket Weld for CNF32, CNF40 Hansen 70-0178, Q-MIN Flange Union Assembly 1 Socket Weld for CNF32, CNF40
    Hansen 70-0178, Q-MIN Flange Union Assembly 1 Socket Weld for CNF32, CNF40
    Web Price $255.53
  44. Hansen 70-0180, Q-MIN Flange Union Assembly 1/2 Hansen 70-0180, Q-MIN Flange Union Assembly 1/2
    Hansen 70-0180, Q-MIN Flange Union Assembly 1/2" FPT End
    Web Price $235.33
  45. Hansen 70-0181, Q-MIN Flange Union Assembly 3/4 Hansen 70-0181, Q-MIN Flange Union Assembly 3/4
    Hansen 70-0181, Q-MIN Flange Union Assembly 3/4" FPT
    Web Price $238.37
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Product Availability
  1. In Stock, Ships Today 39items
Brand
  1. Apollo 1item
  2. Champion Valves 27items
  3. Danfoss 101items
  4. Frick 75items
  5. Hansen 250items
  6. Henry 35items
  7. Ingersoll Rand 15items
  8. M&M Refrigeration 1item
  9. Parker 2items
  10. Phillips 53items
  11. Parker - Refrigerating Specialties (RS) 480items
  12. Temprite 1item
  13. Vilter 18items
Condition Type
  1. New In Box 1item
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
  9. Valve Parts 5items
  10. Valves 25items
Outlet Connection
  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