Check-All F6 Flange Insert Check Valve - 4-Inch, 0.125 PSI Cracking Pressure
Check-All F6 Flange Insert Check Valve - 4-Inch, 0.125 PSI Cracking Pressure
SKU:F1F-144a3f
Install the Check-All F6 Flange Check Valve for reliable, cost-effective flow control. Made with 316 Stainless Steel, 0.125 psi cracking pressure, suitable for low-pressure applications.
Regular price
$229.99
Regular price
Sale price
$229.99
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per
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The Check-All F6 Flange Insert Check Valve is the pinnacle of check valves for flanged systems. Offering simplicity and cost-effectiveness, this valve eases installation with its self-positioning body during bolt tightening. Constructed with high-quality 316 Stainless Steel, it ensures durability and reliability. With a standard cracking pressure of 0.125 psi and various seat material options available, this valve meets stringent industry standards and is ideal for low pressure relief or vacuum breaker applications. Consult the factory for a custom Flag Tag and B16.34 certification options. Proudly made in the USA.

Product Specifications
Additional Information
Flange Insert valves are designed to fit between two mating ANSI flanges. The "Spring Housing", designated by the "A" dimension (Check "A" dimension for clearance with pipe ID. Generally "A" dimension is designed for use in schedule 40 pipe for class 150 & 300 valves (F1). Order class 600 (F6) valves for schedule 80 pipe.), is designed to be inserted into the upstream pipe, thereby helping to center it in the pipe. Therefore, there must be clearance between the spring housing and the pipe or flange. Generally speaking, the FIV Class 150 and 300 valves (F1) are designed for standard schedule pipe with Class 150 or 300 flanges, and the FIV Class 600 (F6) valves are designed for schedule 80 pipe with Class 150, 300 or 600 flanges.The Flange Insert valve can also be used as a low pressure relief valve or vacuum breaker by using the desired spring settings. Many valves in this series can be supplied with B16.34 certification.
Note
Consult the factory for an optional Flag Tag which indicates that a check valve is present in the line.Many valves in this series can be supplied with B16.34 certification. Consult the factory for more information.Made in USA.
Specifications Body Material
316 Stainless Steel = SS | Alloy 20 = A2 | Alloy B = HB | Alloy C-276 = HC | Carbon Steel = CS | Monel® 400 or Alloy R405 = MO | Polytetrafluoroethylene (PTFE) = TF | Polyvinyl Chloride (PVC) = PV | Titanium = TI
Specifications Certifications
European Conformity (CE) PED 2014/68/EU Complaint | International Organization for Standardization (ISO 9001) Certified
Specifications Nominal Pipe Size
4 in
Specifications Note For Material
Listed above are the most common material selections. Please contact the factory for additional options.
Specifications Note For Standard Cracking Pressure
0.125 psi springs are not recommended for installations with flow vertical down.
Specifications Seat Material
"Metal-to-Metal" = MT | Aflas® = AS | Buna-N = BN | Ethylene Propylene Diene Monomer (EPDM) = EP (EP seats not recommended for use with Carbon Steel valves.) | Fluoro-Elastomer (FKM) = VT | Neoprene = NE | Perfluoroelastomer = KZ | Polytetrafluoroethylene (PTFE) = TF
Specifications Size Code
N
Specifications Special Options
T = FEP Encapsulated Spring (Contact the factory for more options)
Specifications Spring Material
17-7PH Stainless Steel = PH | 316 Stainless Steel = SS | Alloy B = HB | Alloy C-276 = HC | Inconel® X750 or Alloy X750 = IX | Monel® 400 = MO | Titanium = TI
Specifications Standard Cracking Pressure
0.125 psi
Specifications Valve Style
F6