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The KITZ 8910 is a globe-style silent check valve engineered for quiet operation and dependable backflow prevention. Designed for use in commercial plumbing and HVAC systems, this valve features a rugged Class 125 cast iron body and stainless steel (304) internal trim for enhanced corrosion resistance and durability. Its silent operation minimizes water hammer and noise, making it ideal for noise-sensitive environments. Available in sizes ranging from 2 1/2" to 8", the 8910 is suitable for horizontal and vertical installations and meets industry standards for performance and reliability.

8910 - Silent Check - Class 125 Cast Iron
Unit of Measure
Items 8910 - Silent Check - Class 125 Cast Iron
8910-212
8910 - Silent Check - Class 125 Cast Iron
8910 - Silent Check - Class 125 Cast Iron
8910-300
8910 - Silent Check - Class 125 Cast Iron
8910 - Silent Check - Class 125 Cast Iron
8910-400
8910 - Silent Check - Class 125 Cast Iron
8910 - Silent Check - Class 125 Cast Iron
8910-500
8910 - Silent Check - Class 125 Cast Iron
8910 - Silent Check - Class 125 Cast Iron
8910-600
8910 - Silent Check - Class 125 Cast Iron
Type N/A Silent Check Valve
Size N/A 2 1/2 N/A 3 N/A 4 N/A 5 N/A 6
Operating Temperature [Max] N/A 200 ºF
Pressure [Max] N/A 200 psi
Cracking Pressure N/A 1/2 psi
Body Material N/A Cast Iron (A126 Class B)
Disc Material N/A Stainless Steel (ASTM A351 CF8)
Seat Ring Material N/A Stainless Steel (ASTM A351 CF8)
O-ring Material N/A FKM
Bush Material N/A Stainless Steel (Type 304)
Coil Spring Material N/A Stainless Steel (Type 304)
Cv Coefficient N/A 114 N/A 156 N/A 301 N/A 437 N/A 634
Length N/A 5.5 in N/A 6.0 in N/A 7.25 in N/A 8.5 in N/A 9.75 in
d N/A 2.76 in N/A 3.23 in N/A 4.37 in N/A 5.35 in N/A 6.34 in
t N/A 0.69 in N/A 0.75 in N/A 0.94 in N/A 0.94 in N/A 1.00 in
End Type N/A Flanged
End Size N/A 2 1/2 N/A 3 N/A 4 N/A 5 N/A 6
Weight N/A 20 lb N/A 23.5 lb N/A 38.5 lb N/A 53 lb N/A 70 lb
Mounting Recommendation N/A Valve should be mounted a minimum of six times the nominal pipe diameter from pumps, elbows or other transition devices in the piping system.
These are not to be used as steam valves. Valves are not to be used near a reciprocating air compressor.
Industry Standards/Certifications N/A
  • End to end - MSS SP-125
  • End Connections - ASME B16.1-2020 CLASS125
  • Wall Thickness - Kitz Standard
  • Design - MSS SP-125