Saracinesche a tenuta metallica
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GVMS METAL SEATED GATE VALVE “O” Ring type Conform to EN 1074-1/2 and EN 1171, Flanges according EN 1092-2, flange drilling conform to EN 10922 or ANSI B16.5 Class 125/150, Test conform to EN 12266-1, max working Temperature 70°. METAL SEATED NO RISING STEM GATE VALVE Note* All dimensions are in mm. Our firm reserve to apply modifications without any information. Dimensions can vary due to cast molding. All dimensions are subject to tolerance equal to 10%

GVMS METAL SEATED GATE VALVE FLAT BODY NON RISING STEM “O” Ring type Conform to EN 1074-1/2 and EN 1171, Face to Face EN 558 Serie 14 Flat body, Flanges according EN 1092-2 , , flange drilling conform to EN 1092-2 or ANSI B16.5 Class 125/150 , Test conform to EN 12266-1, max working Temperature 70°. Note* All dimensions are in mm. Our firm reserve to apply modifications without any information. Dimensions can vary due to cast molding. All dimensions are subject to tolerance equal to 1

GVMS METAL SEATED GATE VALVE OVAL BODY NON RISING STEM “O” Ring type Conform to EN 1074-1/2 and BSEN 1171, Face to Face EN 558 Serie 15 Oval body, Flanges according EN 1092-2 Flange drilling conform to EN 1092-2 or ANSI B16.5 Class 125/150, Test conform to EN 12266-1, max working Temperature 70°. Note* All dimensions are in mm. Our firm reserve to apply modifications without any information. Dimensions can vary due to cast molding. All dimensions are subject to tolerance equal to 10%

GVMS METAL SEATED GATE VALVE “Rope “type Conform to EN 1074-1/2 and EN 1171, Flanges according EN 1092-2, flange drilling conform to EN 10922 or ANSI B16.5 Class 125/150, Test conform to EN 12266-1, max working Temperature 70°. Note* All dimensions are in mm. Our firm reserve to apply modifications without any information. Dimensions can vary due to cast molding. All dimensions are subject to tolerance equal to 1

GVMS METAL SEATED GATE VALVE FLAT BODY NON RISING STEM ROPE Type Conform to EN 1074-1/2 and BSEN 1171, Face to Face EN 558 Serie 14 Flat body, Flanges according EN 1092-2, flange drilling conform to EN 1092-2 or ANSI B16.5 Class 125/150, Test conform to EN 12266-1, max working Temperature 70°. Note* All dimensions are in mm. Our firm reserve to apply modifications without any information. Dimensions can vary due to cast molding. All dimensions are subject to tolerance equal to 10%

GVMS METAL SEATED GATE VALVE OVAL BODY NON RISING STEM ROPE Type Conform to EN 1074-1/2 and BSEN 1171, Face to Face EN 558 Serie 15 Oval body, Flanges according EN 1092-2 Flange drilling conform to EN 1092-2 or ANSI B16.5 Class 125/150 , Test conform to EN 12266-1, max working Temperature 70°. Note* All dimensions are in mm. Our firm reserve to apply modifications without any information. Dimensions can vary due to cast molding. All dimensions are subject to tolerance equal to 10%

GVMS METAL SEATED GATE VALVE RISING STEM Conform to EN 1074-1/2 and BSEN 1171, Flanges according EN 1092-2, flange drilling conform to EN 10922 or ANSI B16.5 Class 125/150, Test conform to EN 12266-1, max working Temperature 70°. METAL SEATED RISING STEM GATE VALVE Note* All dimensions are in mm. Our firm reserve to apply modifications without any information. Dimensions can vary due to cast molding. All dimensions are subject to tolerance equal to 10%

GVMS METAL SEATED GATE VALVE FLAT BODY RISING STEM Conform to EN 1074-1/2 and BSEN 1171, Face to Face EN 558 Serie 14 Flat body, Flanges according EN 1092-2, flange drilling conform to EN 1092-2 or ANSI B16.5 Class 125/150 , Test conform to EN 12266-1, max working Temperature 70°. Note* All dimensions are in mm. Our firm reserve to apply modifications without any information. Dimensions can vary due to cast molding. All dimensions are subject to tolerance equal to 10%

GVMS METAL SEATED GATE VALVE OVAL BODY RISING STEM Conform to EN 1074-1/2 and BSEN 1171, Face to Face EN 558 Serie 15 Oval body, Flanges according EN 1092-2, Test conform to EN 12266-, max working Temperature 80°. Note* All dimensions are in mm. Our firm reserve to apply modifications without any information. Dimensions can vary due to cast molding. All dimensions are subject to tolerance equal to 10%

fat tests All Di Nicola GVMS Gate valves are subject to tests conforming to EN12266-1 hydraulic test and EN1074 before delivery , those tests consist in : Hydraulic tests • • 1,5 PFA Body Test ( open ); 1,1 PFA Shell Test ( closed ). Coating or painting tests • • Thickness Test Integrity Test Certificates issued by the manufacturer : • • • • EN 1074-1 e 2 EN 9712 Dimensional and coating check EN 10204 3.1 materials certificate EN 12266-1 hydraulic test ISO 5752 serie 15 e serie 14 EN 558 serie 15 e serie 14 Flange drilling : • • • Nominal Diameter in mm (DN); Nominal pressure in bar (PN);...

Gate valves accessories Di Nicola Gate valves can be supplied with many different accessories for operation in line and buried applications. Beside common accessories here proposed Di Nicola develop new accessories tailor suit for its customers and their special applications. For any technical suggestion we ask you to contact our sales department to help you in developing new accessories. Electric Actuator Electric Actuator Estension Spindle Gear Box Oleodinamic Piston Gate Valve

The present diagram is suitable for metal seated gate valves in following working conditions: Operating pressure from 0 to 16 Bar Operating temperature from 10° till 50° GATE VALVES - DIAGRAM FLOW / HEAD LOSS

HyDRAULIC CHARACTERISTICS The gate valve pressure drop (delta P) can be expressed through the flow coefficient Kv . Kv coefficient is related to the water flow value , at a fixed temperature of 20° C, able to generate an head loss equal to 1 bar through the gate valve. gate valves - kv values DN (inches)

gate valve assembly procedure Gate valves must be assembled to the pipeline by tightening the bolts crosswise, alternating the bolt of a flange with one of the other.