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VAPOR RECOVERY & OVERFILL PROTECTION ACCESSORIES VENT VALVE ASSEMBLY-Allows manifolding of tank lines.Can be used in conjunction with Universal Float Vent Valve 37 or 38,for overfill protection.Also reduces product crossover in manifolded vapor recovery systems. V421 includes sf V423 Cage Assembly(used with 37);V420 does not include V423 Cage Assembly(used with 38). Model i Port Size Weight(lbs) Height Width v V420-0000 0•x 0' 18.4 J 81 65/e' W. V420 0020 0*0'2' 16 2 8 6'/e' a V420-2020 2'x 2' 15.7 8' 65/1, V420-0030 0'x 3' 18.0 8' 65/e V420-3020 3x2* 16.7 8' 65/e V420-3030 T x T 17.6 8' 6'/e V421-0000 0'x 0' 18.4 8' 6'/e' V421-0020 0'x 2' 16.2 8' 61/o' V421.2020 2x 2' 15.7 8' 61/e V421-0030 170"3' 18.0 8' 65/e V420 V421 v421-3020 3x2 16.7 s 6518' V421-3030 3'x 3' 17.6 8' 6'11 •Allows manifolding of tank lines • Polymeric-coated cast iron body • Easy mounting on UST flange •Standard 4"inlet and outlet • Properly positions the Float Vent Valve # FLOAT VENT VALVE-Used in conjunction with the Model V421 Vent Valve Assembly to protect against overfill of USTs by signaling the transport driver when the tank is filled to 90%capacity,in accordance with EPA guidelines. Fuel levels force the stainless steel ball to seat tightly against a specially-designed valve seat, which restricts the venting system and slows delivery rate dramatically, alerting the transport driver to stop product drop. Model q Re Bleed Hole Size Weight(lbs.) Height r Width 37-206000 2'x 6' 0' 1.5 37-206018 2x 6' 1/e 1.5 91/2 311e' 37.206016 2'x 6' 'he 1.5 91/i 311e' 37-201218 2'x 12' 1/e 3.7 16'/2' 3'/e• — 37-201216 2'x 12' 'he 3.7 16'/2' 3'/e' 37-201618 2x 16' 1/e 4.4 19'11 3'/e 37-201616 7 x 16' 'he 4.4 191/1 3'/e' LM 37-202118 Tx 21' 1/e' 6.2 241h' 3'/e' 37 37.202116 2'x21' 'he 6.2 241/1 3'/e • Prevents product mixing • Polymeric-coated steel body • Easily extracted to allow tank testing •Galvanized steel cage • Easy to install •Stainless steel float ball \