3/2-Way Valve DN 15 up to DN 40. Technical Information. normal function, normally closed. distributing, mixing function and shut - off function

Transcription

1 3/2-Way Valve 78 DN 1 up to DN 4 Pneumatically operated 3/2-way valve for the control of neutral and slightly aggressive media. (Stainless steel version, Data sheet Type 781) Compact design Unaffected by lightly contaminated media For temperatures from -3 C up to +2 C Working pressure up to 16 bar Versatile actuators in different sizes Technical Information Body material bronze Rg sizes DN 1 to DN 4 Connections Pipe thread acc. DIN 2999 Rp 1/2" - 1 1/2" NPT thread 1/2" - 1 1/2" pressure PN 16 Max. fluid temperature: with metal bonnet -3 C up to +17 C, opt. +2 C with plastic bonnet -3 C up to 13 C Ambient temperature -3 C to +6 C Viscosity of the media maximum 6 mm²/s (6cSt, 8 E) Options - limit switches inductive proximity switch electrical switch pneumatic switch - pilot valves - additional manual operation - version free of oil and grease normal function, normally closed distributing, mixing function and shut - off function Removable position indicator Bonnet can be rotated as required Direct pressure control (with pilot valve if required) actuation by air, water, mineral oil and other media Head section brass Bonnet material brass, chrome plated (actuator, Ø8 mm), aluminium (actuator Ø 12 mm) Exterior lip sealing Leak detector PTFE packing Piston rod, roller burnished stainless steel Body bronze (Rg ) Seating seal in PTFE По вопросам продаж и поддержки обращайтесь: Екатеринбург (343) , Казань (843) , Краснодар (861)23-4-9, Москва (49) , Санкт-Петербург (812) Единый адрес: ssr@nt-rt.ru

2 3/2-Way Valve 78 3/2-Way Valve, Distributing function (3) diameter mm diameter 8 mm 1 1 DN1/2 1 1 DN1/2 DN2 DN2 DN32/ /2-Way Valve Type 78, function /2-Way function Valve Type 78, 3 diameter 12 mm 1 1 DN2 DN32/ /2-Way Valve Type 78, function 3. 3 Springs 1/ / ,8 32/ /

3 3/2-Way Valve 78 3/2-Way Valve, Mixing function (4) diameter mm diameter 8 mm 4 3 DN1/2 1 Spring DN1/2 1 Spring DN2 1 Spring DN2 2 Spring DN2 1 Spring 4 2 DN32/4 1 Spring 3 4 3/2-Way Valve Type 78, function /2-Way function Valve Type 78, 4 diameter 12 mm DN2 1 Spring DN2 2 Spring DN32/4 1 Spring 4 2 DN32/4 2 Spring /2-Way Valve Type 78, function 4 Springs 1/2 1 9,8 1/ , , , , , ,6 32/ ,7 32/ / ,9

4 3/2-Way Valve 78 3/2-Way Valve, actuator: normally closed () diameter mm diameter 8 mm 1 1 DN1/2 1 1 DN2 DN32/4 DN /2-Way Valve Type 78, function /2-Way Valve Type 78, function diameter 12 mm 1 1 DN32/ /2-Way Valve Type 78, function 1/ /4 8 32/4 12 2

5 3/2-Way Valve 78 3/2-Way Valve, actuator: normally open (6) diameter mm diameter 8 mm 1 1 DN1/2 1 1 DN1/2 DN2 DN32/4 DN /2-Way Valve Type 78, function /2-Way Valve Type 78, function 6 diameter 12 mm 1 1 DN32/ /2-Way Valve Type 78, function 6 1/2 9 1/ , , ,8

6 3/2-Way Valve 78 3/2-Way Valve, actuator: shut-off function (7) Size DN Diff. Pressure max (bar) Pilot pressure (bar) Springs DN1/2 4, 3,8-9,7 D 1 DN1/2 9 4,8-1 D 2 DN2 3, 4,9-1 D 2 DN1/2 16 2,9-7,2 D8 1 DN2 1 3,2-7,4 D8 1 DN2 16 4,4-8,7 D8 3 DN32/4 7 4,4-8, D8 2 DN32/4 9,4-9, D8 3 DN32/4 4 1, - 3, D12 1 DN32/4 1 2,2-3,9 D12 2 DN32/4 14 3, - 4,6 D12 3 Ordering Number System / V S 1-6 : Please quote all 6 sections. 7-12: Quote only if required. Symbol: "V": Valve Type Size "A": (valve w ithout body) "R": Repair kit (sealings) 1. Body type 2. Connection 3. Body material 4. Seating seal. Pilot function /2-w ay, diverting BSP-thread 1 Bronze Rg PTFE spring closes (function 3/4//7 piston Ømm 4 3/2-w ay, mixing NPT-thread (1/2" up only) 1 piston Ø8mm to 1 1/2") 3/2-w ay, spring 1 spring opens (function 6 only) 2 piston Ø12mm closes 6 3/2-w ay, spring 3 double acting opens 7 3/2-w ay, shut-off function NC 7. Springs Packing 1. Temperature version 11. Accessories 12. Special versions - standard - w ithout - standard - standard - no accessories S special versions significance 2 packing underneath H high temperature version 1 electrical position indicator w ith one sw itch M position indicator w ith cable bushing 2 electrical position indicator w ith tw o sw itches N position indicator w ith plug connection 3 manual emergency operation 4 additional manual operation stroke limitation 6 pilot valve DN 2, 23 V AC 7 pilot valve DN 2, 24 V DC K electr. position indicator compact M position indicator w ith tw o ind. sw itch 1-36 V DC (PNP) P position indicator w ith one ind. sw itch 1-36 V DC (PNP) T position indicator compact, inductive 1-3 V DC (PNP) Ordering example: 78/V : 3/2-way valve type 78, normal function, DN, pipe thread acc. DIN 2999, body material bronze (Rg), PTFE seat material, spring opens, actuator 8 mm, pilot valve 24 V DC.

7 3/2-Way Valve 78 Dimensions and Weights distributing and mixing function shut - off function (7) normal function, normally closed normal function, normally open Size piston A B C Rp C NPT D E F G H stroke H1 stroke I K L M SW1 SW2 SW3 SW4 SW Kvs Weight value kg 1 Rp1/2" 13 13, G 1/8" 9 34, ,3 1, 1 8 Rp1/2" 13 13, G 1/4" ,3 3,1 2 Rp3/4" 13 16, G 1/8" 9 34, ,3 1, 2 8 Rp3/4" 13 16, G 1/4" ,3 3,1 2 Rp1" 14 16, G 1/8" , ,3 1,9 2 8 Rp1" 14 16, G 1/4" ,3 3, 2 12 Rp1" 14 16, G 1/4" ,3, Rp1 1/4" G 1/4" 18, , Rp1 1/4" G 1/4" 18, ,7 4 8 Rp1 1/2" G 1/4" 18, , Rp1 1/2" G 1/4" 18, ,7 Versions Dimensions in mm distributing mixing function function actuator NC actuator NO shut - off function NC