NRV (Non Return Valve) Ferrule FCV (Flow Control Valve cum Non Return Valve)
Cost Rs. 500 (Ferrule + NRV) Approx. Rs. 472
Control on Flow of Water No Yes
Uniform Flow of Water Distribution No Yes
Illegal Draw of Water using electrical motor Yes No
Last Mile Water Delivery No Yes
Zero Leakage of Reversible Water at all pressure Yes Yes
Prevent Reversible flow of water to mains Yes Yes
Production Method Casting High Precision machining SS316 Hexagonal Rods
Free from Casting Defects such as Blowholes/Shrinkage No Yes
Product MS Clamp Saddle PVC Saddle PP Saddle
Photograph
Material Mild Steel & Polyvinyl Chloride Polyvinyl Chloride (Usually not made of virgin material) Polypropylene & SS316 Steel (Virgin Material)
Certification for Raw Material Compatibility with Drinking Water NO NO WRAS (Water Regulations Advisory Scheme Ltd, UK) Certification
Fixing Thread Mild Steel PVC SS316 Steel
Life Expectancy Very Low Low High
Leakage Issue Fixing thread of MS Clamp Saddle made of mild steel is prone to corrosion/shrinkage & having low resistance to chemicals & chlorides (such as salt) leads to leakage over period of time Metal to PVC thread fitting cause usually breakage even with a mild tightening pressure Metal to Metal thread fitting make the connection leak proof
Corrosion Issue Prone to corrosion & rusting Not Prone to corrosion & rusting Not Prone to corrosion & rusting
Manufacturing/Testing Standard No Standard No Standard AS/NZS Standard
Potential to Withhold Pressure Rating NA Upto 4kg Upto 10Kg
Usage Used for Metallic Pipes Used for PVC Pipe Used for HDPE or PVC Pipes