Full-lift flanged Safety valve with spring loading

Transcription

1 SALES SERVCE +35 (0) info@econosto.fi SERE 1 TYPE 6 Full-lift flanged Safety valve with spring loading CAST RON, NODULAR RON, CAST STEEL, STANLESS STEEL EN WORKNG PRNCPLES The valve works as an automatic pressure releasing regulator activated by the static pressure existing at the entrance to the valve and is characterized by its ability to open instantly and totally. EP AP ES CP TYPE 6 - FEATURES 90 angular flow. Activated by direct action helicoid spring. Simplicity of construction ensuring minimum maintenance. Materials carefully selected for their resistance to corrosion. With the exception of washers and couplings, the valves are free of non-ferric materials. nternal body designed to offer favourable flow profile. Sealing surfaces treated and balanced, making them extremely tightness, even exceeding EN 6-1 requeriments. Great discharge capacity. For liquids typically used with openings similar to proportional safety valves. Equipped with draining screws for removing condensation. Auto-centering plug. Threaded shaft with lever positioner facilitating immediate manual action. Elevator, independent of the seal, designed facilitate sudden opening when the steam expands and, with any fluid, guarantees absolute opening and closing precision. All the valves are supplied sealed at the set pressure requested, simulating operational conditions, and are vigorously tested. Design in accordance with nternational Standard SO 1-1:0 Safety Valves. n accordance with the requirements of directive 97/23/EC. EC valve verification certified by: TÜV nternacional Grupo TÜV Rheinland, S.L. EC Type (Module D) EC examination report nº certified by: TÜV nternacional Grupo TÜV Rheinland, S.L. n compliance with the ATEX 9/9/CE directive Protective equipment and systems for use in potentially explosive atmospheres. Other authorisations: SCR, T, NASTHOL,...etc. ECONOSTO OY Lukkosalmentie 1, PL 30, 7021 KUOPO, Finland Tel. +35 (0)

2 Full-lift flanged Safety valve with spring loading, type 6 MPORTANT Depending on demand: 1.- Blocking screw which facilitates hydrostatic testing of the container which to be 1.- protected. 2.- Rapid limiter to reduce the coefficient of discharge. 3.- seals,,... etc., achieving 3.- leakage levels less than Pa cm3-3 0,3 x seg. The ranges of application allow certain flexibility although we recommend limiting them to: FLUD Liquids and gases SEALS S V T RANGE OF APPLCATON FOR THE SEALS SET PRESSURE N bar 1,,0, 7,0 30,0 S V T S V T TEMPERATURE N C ACCORDNG TO MANUFACTURERS RECOMMENDED BY VYC MNMUM MAXMUM MNMUM MAXMUM (1) (1) For temperatures exceeding 230 C apply metallic seal only.- Flourelastomer (Vitón) membrane and O-ring isolating the rotating or sliding.- parts from the working fluid. 5.- Electrical contact indicating open/closed. 6.- Balance bellows to: mmmprotect the spring from atmospheric influences. mmmensure outside of valve body is totally tightness. mmmlevel out external or self-generated back pressure. 7.- Possibility of manufacture in other types of material, for special operating con- 7.- ditions (high temperatures, fluids, etc.)..- Totally free of oil and grease, to work with oxygen, avoiding possible fire risks.- (UV-Oxygen-VBG 62). 9.- Special springs for critical temperatures. (EN St-37.2) (7) 0, N. PECE , 5, , , , 29, 30, 31 33, 3, Body Closed bell Open bell Hood Elevator Cam Lever Seating Plug Lead Spring press Separator Rod Lever shaft Gudgeon Ring Safety ring Spring Gland Hollow screw Hollow screw nut Buffer nut Rod check nut Nut Washer Stud Screw Cap Coupling Coupling Seal Seal Characteristic plate Plug Sealing disk Washer Coupling Limiter Membrane O-ring PECE CAST RON Cast iron (EN-5.01) Cast iron (EN-5.01) Cast iron (EN-5.01) (1) (6) Stainless steel (EN-1.02) Stainless steel (EN-1.02) Stainless steel (EN-1.02) () Stainless steel (EN-1.02) Stainless steel (EN-1.02) Carbon steel (EN-1.31) Stainless steel (EN-1.02) Stainless steel (EN-1.3) Vanadium-chrome steel (EN-1.159) (2) Stainless steel (EN-1.305) Stainless steel (EN-1.305) Stainless steel (EN-1.305) Carbon steel (EN-1.111) Carbon steel (EN-1.111) Carbon steel (EN-1.111) Carbon steel (EN-1.111) Carbon steel (EN-1.111) Stainless steel (EN-1.301) Copper Stainless steel (EN-1.02) NODULAR RON MATERAL (1) (6) Stainless steel (EN-1.02) Stainless steel (EN-1.02) Stainless steel (EN-1.02) () Stainless steel (EN-1.02) Stainless steel (EN-1.02) Carbon steel (EN-1.31) Stainless steel (EN-1.02) Stainless steel (EN-1.3) Vanadium chrome steel (EN-1.159) (2) Stainless steel (EN-1.305) Stainless steel (EN-1.305) Stainless steel (EN-1.305) Carbon steel (EN-1.111) Carbon steel (EN-1.111) Carbon steel (EN-1.111) Carbon steel (EN-1.111) Carbon steel (EN-1.111) Stainless steel (EN-1.301) Copper Stainless steel (EN-1.02) CAST STEEL Cast steel (EN-1.06+N) Cast steel (EN-1.06+N) (1) (6) Stainless steel (EN-1.02) Stainless steel (EN-1.02) Stainless steel (EN-1.02) () Stainless steel (EN-1.02) Stainless steel (EN-1.02) Carbon steel (EN-1.31) Stainless steel (EN-1.02) Stainless steel (EN-1.3) Vanadium chrome steel (EN-1.159) (2) Stainless steel (EN-1.305) Stainless steel (EN-1.305) Stainless steel (EN-1.305) Carbon steel (EN-1.111) Carbon steel (EN-1.111) Carbon steel (EN-1.111) Carbon steel (EN-1.111) Carbon steel (EN-1.111) Stainless steel (EN-1.301) Copper Stainless steel (EN-1.02) STANLESS STEEL Stainless steel (EN-1.0) Stainless steel (EN-1.0) Stainless steel (EN-1.0) Stainless steel (EN-1.0) Stainless steel (EN-1.0)(7) Stainless steel (EN-1.301) Stainless steel (EN-1.52) Stainless steel (EN-1.52) (5) Stainless steel (EN-1.305) Stainless steel (EN-1.305) Stainless steel (EN-1.3) Stainless steel (EN-1.3) Stainless steel (EN-1.3) (3) Stainless steel (EN-1.305) Stainless steel (EN-1.305) Stainless steel (EN-1.305) Stainless steel (EN-1.305) Stainless steel (EN-1.301) x a 0 x PN PRESSURE N bar OPERATNG MAX. TEMP. N C CONDTONS MN. TEMP. N C (1) DN- x in stainless steel (EN-1.0). (2) Spring steel (EN SH) for wire spring Ø < mm. Maximum temperature EP, ES and CP C / AP 00ºC. (3) Vanadium chrome steel (EN-1.159) for wire spring Ø > mm. () DN-0x in Stainless steel (DN-1.027). (5) DN-0x in Stainless steel (EN-1.0). (6) DN-x in Stainless steel (DN-1.301). (7) DN-x to DN-65x0 in Stainless steel (DN-1.01). ECONOSTO OY Lukkosalmentie 1, PL 30, 7021 KUOPO, Finland Tel. +35 (0)

3 Full-lift flanged Safety valve with spring loading, type 6 EP Full lift safety valve with spring loading (AT) model 96 - AP and CP. 1. Disassembly and assembly. 1.1 Disassembly. To replace the spring () or clean any of the internal components of the valve, proceed in the following manner: A - Withdraw the clip (1), using a punching tool, until the lever () comes free. B - Loosen the screws (3) and take the cap (6) off. C - Holding the spindle () steady, loosen the hollow screw nut () and the holow screw (2) until you note a realasing of the spring (). D - Mark on the spindle () the position of the spindle lock-nut (27) and the adjusting nut (). Loosen them and remove them. E - Unscrew the nuts (29) and remove them, together with the studs () and their washers (30). F - Lift the cover (3) or (2) and you will have access to all of the components. 1.2 Assembly. A - Place the safety-ring () on the spindle () and press it against the gasket (). B - n the spindle channel () connect the ring () and fix it to the security-ring (21). ntroduce the elevator (7) into the upper part of the spindle () and press this against the previously described pieces. C - Enter the guide (), the separator (15), the spring-press (1), the spring (), the spring-press (1) through the upper part of the spindle () and press this against the previously descrobed pieces. D - Replace the assembly (3) and the cover (3) or (2). E - Place the washers (30) on the studs () and make up the nuts (29) diagonally, checking the correct alignment of the cover (3) or (2). F - Adjust the firing pressure with the hollow screw (2) and fix the adjustment position with the hollow screw nut (). G - Turn the spindle lock-nut (27) and the adjusting nut () to the position mrked (see 1.1.D) and make up against each other. H - ntroduce the cap (6) and tighten the screws (3). - Place the lever () and fix it with the fastener (1). 2. Adjusting the firing pressure. A - Proceed according to points 1.1.A, 1.1.B, 1.1.C. B - Proceed according to points 1.2.F, 1.2.H, AP Full lift safety valve with spring loading (AT) model 96 - EP. 1. Disassembly and assembly. 1.1 Disassembly. To replace the spring (), or clean any of the internal components of the valve, proceed in the following manner: A - Move the lever (9) in direction C as far as the constructive catcher. B - Unscrew the cap () and remove. C - Holding the spindle () steady, loosen the hollow screw nut () and the hollow screw (2) until you note a realeasing of the spring (). D - Mark on the spindle () the position of the spindle lock-nut (27) and the adjusting nut (). Loosen them and remove them. E - Unscrew the nuts (29) and remove them, together with the studs () and their washers (30). F - Lift the cover (2) and you will have access to all of the components. 1.2 Assembly. A - Place the safety-ring () on the spindle () and press it against the gasket (). B - n the spindle channel () connect the ring () and fix it to the security-ring (21). ntroduce the elevator (7) into the upper part of the spindle () and press this against the previously described pieces. C - Enter the guide (), the separator (15), the spring-press (1), the spring (), the spring-press (1) through the upper part of the spindle () in a correlative manner. D - Replace the assembly (3) and the cover (2). E - Place the washers (30) on the studs () and make up the nuts (29) diagonally, checking the correct alignment of the cover (2). F - Adjust the firing pressure with the hollow screw (2) and fix the adjustment position with the hollow screw nut (). G - Turn the spindle lock-nut (27) and the adjusting nut () to the position marked (see 1.1.D) and make up against each other. H - Change the coupling (39) and lightly tighten the cap (). Move the lever (9) towards position A as far as the constructive catcher. Definitively tighten the cap (). 2. Adjustig the firing pressure. A - Proceed according to points 1.1.A, 1.1.B, 1.1.C. B - Proceed according to points 1.2.F, 1.2.H. ES CP Full lift safety valve with spring loading (AT) model 96 - ES. 1. Disassembly and assembly. 1.1 Disassembly. To replace the spring (), or clean any of the internal components of the valve, proceded in the following manner: A - Unscrew the cap (5) and remove. B - Holding the spindle () steady, loosen the hollow screw nut () and the hollow screw (2) until you note a realeasing of the spring (). C - Unscrew the nuts (29) and remove them, together with the studs () and their washers (30). F - Lift the cover (2) and you will have access to all of the components. 1.2 Assembly. A - Place the safety-ring () on the spindle () and press it against the gasket (). B - n the spindle channel () connect the ring () and fix it to the security-ring (21). ntroduce the elevator (7) into the upper part of the spindle () and press this against the previously described pieces. C - Enter the guide (), the separator (15), the spring-press (1), the spring (), the spring-press (1) through the upper part of the spindle () in a correlative manner. D - Replace the washers (3) and the cover (2). E - Place the washers (30) on the studs () and make up the nuts (29) diagonally, checking the correct alignment of the cover (2). F - Adjust the firing pressure with the hollow screw (2) and fix the adjustment position with the hollow screw nut (). G - Change the coupling (39) and tighten the cap (5). 2. Adjusting the firing pressure. A - Proceed according to points 1.1.A, 1.1.B. B - Proceed according to points 1.2.F, 1.2.G. ECONOSTO OY Lukkosalmentie 1, PL 30, 7021 KUOPO, Finland Tel. +35 (0)

4 Full-lift flanged Safety valve with spring loading, type 6 WEGHT N Kgs. do π. do Ao = H h 1 L 1 L 2 R. x /" x /" x /" 0 x /" x /" 65 x /" 0 x /" 0 x /" 1 x /2 1 x /2 0 x /2 Whitworth gas-tight cylindrical female thread SO /1 7 (DN-9) D 1 K 1 Ι 1 b 1 DRLLS N. D 1 K 1 Ι 1 b 1 DRLLS N. D 2 K 2 Ι 2 b 2 DRLLS N () 0 (1)* () 1 (1)* (1)* (1)* (1)* 1() (1)* (1)* (1)* 0 0 (1)* () * (1)* 2 (1)* 2() ()* (1)* 2 2 (1)* () * (2) ()* ()* (2) * 23 2()* () * ()* () * MODEL EPAPES CPEP AP ES CP EP AP ES CP EP AP ES CP EP AP ES CP EP AP ES CP EP AP ES CP EP AP ES CP EP AP ES CP EP AP ES CP EP AP ES CP CAST RON NODULAR RON,00 7,0 7,60 7,0 9,60, 9, 9,3,7,2,17,3 271,7,,6,62,67,3,77 39,36,52 37, 3, 55, 51, 52,70 53,30 2,15 75,9 7,0 7,6 9,,6 92,0 93,33, 0,0 5, 6,37, 21,60 1,72,30,73,07,29,9,7 9,6 9,9 15,,991,371,63, ,00 21,3 29,11,92 27,65 2,0 3,039, 0,92 1, ,99 57,51 5,11 9,6 2,91 5,15 5,75 97,00 91, 95,39 95, 173, 6,,3 11,0 23,63 1,1, 230,3 CAST STEEL STANLESS STEEL, 7,6,07,27,60 9,0,07,331,7,751,1,3 21,27,67,6,6,52 27,2 27,67 1,3,36 39,0 0,00 5, 5,09 55,55 56,15 7,15 0,61 2,79 3,39,3 97,6 2,65 3, 152, 1,,30,65, 235,9 23,61,75 ESCAPE FLANGE NTAKE FLANGE (1) (3) PN-/ EN-92-2 (2) PN-/0 EN-92-2 EN-92-1 PN-/ EN-92-2 EN-92-1 CAST RON NODULAR RON CAST STEEL STANLESS STEEL (1) From DN-1x0 PN-. (2) DN-0x PN-. (3) DN-0x PN-. * Cast steel (EN-1.06) and Stainless steel (EN-1.0).. EP ES CP AP PERMSSBLE BACK PRESSURE N % OF SET PRESSURE FLUD RECOMMENDED RANGES OF APPLCATON NTERNAL OR GENERATED EXTERNAL VARABLE (1) EXTERNAL CONSTANT (1)(2)(3) % OVERPRESSURE MODEL EP AP(1) ES CP(1) LQUDS LQUDS LQUDS LQUDS LQUDS pa = Backpressure permitted [bar] absolute. pa = Set pressure [bar] absolute. αd = Coefficient of discharge. OPEN AND CLOSED PRESSURES N % OF SET PRESSURE FLUD PRESSURE N bar OPENNG PRESSURE CLOSNG PRESSURE SATURATED STEAM < % - 0,3 bar LQUDS 3 < % + % - % - 0,6 bar 3 + % - % f external backpressure exists, the AP and CP model cannot be used. With external constant backpressure, the spring is adjusted deducting the backpressure from the set pressure. f the set pressure < 3 bar we must consider the total atmospheric pressure (1 bar) as external constant backpressure being freely released. f pa > 5p, we must limit plug speed with the consequent reduction of the αd coefficient of discharge. With the new reduced coefficient we determine the d0, in order to remove the necessary volume. ECONOSTO OY Lukkosalmentie 1, PL 30, 7021 KUOPO, Finland Tel. +35 (0) (1) (2) (3)

5 SET PRESSURES AND REGULATNG RANGES x x 0 x 0 x 65 x 0 65 x 0 0 x 1 0 x 1 1 x 0 1x 0x MAXMUM PN-,5 SET PRESSURES N bar (LQUDS AND ) MAXMUM (SATURATED STEAM) PN-0 PN- PN-0 STEAM AND ,5,5,5 MNMUM LQUDS 0 a 0, ,66 a 1, ,95 a 1, ,30 a 1, ,0 a 2, SPRNG REGULATNG RANGE N bar 2, a 3,60 3, a 5,00,0 a 6,30 6,00 a,00 7, a,00 9, a, ,00 a, ,00 a, ,00 a, ,00 a, ,00 a 0, Spring steel (EN SH). Maximum temperature for EP, ES and CP models C / AP 00ºC Vanadium-chrome steel (EN-1.159). Stainless steel (EN-1.3). ECONOSTO OY Lukkosalmentie 1, PL 30, 7021 KUOPO, Finland Tel. +35 (0)

6 Full-lift flanged Safety valve with spring loading, type 6 COEFFCENT OF DSCHARGE x x 0 x 0 x 65 x 0 65 x 0 0 x 1 0 x 1 1x0 1x 0x do h h 1 h/do 7,00 2,60 0, ,00,00,00 1,00 1,00,00 29,00 3,0 36,0 56,15 3, 0,00 05, 06, 0,00,00,,7,0 27,90 00, 00,3 0 00,36 00, 00,3 0,37 0,33 0,36 do π. do Ao= 2. x 1 x 0 31 h 1 /do (1) 0, 0, 00, 00, 00, 00, 00, 00, 0,1 0,1 0,1 COEFFCENT OF LQUDS DSCHARGE αd LQUDS WTH RAPD LMTER (1) 0,7 0,60 0,36 0,7 0,7 2 0,7 p [bar] 1,2 1, 1,2 1, 1, Overpressure factors Multiply the discharge capacity obtained from the tables, by the correction factor, in order to obtain the discharge capacity at required overpressure. SET PRESSURE N bar ,1 1, 1,1 1, 1, 1,0 1,06 1,0 1,02 1,00 Overpressure in % Air Water % p ,0 1,5 2,0 2,5 3,0 3, Gases Liquids αd αd αd Gases,0,5 5, , , , , , h h pa d 0 d0 p,0 1, (1) d 0-63 (2) d 0 77 (3) d (1) d 0-77 (2) d (3) d (1) d 0 - (2) d 0 155,0 1, , , , , , , , , , , , ECONOSTO OY Lukkosalmentie 1, PL 30, 7021 KUOPO, Finland Tel. +35 (0)

7 Full-lift flanged Safety valve with spring loading, type 6 DSCHARGE CAPACTY x 0 x 65 x 0 65 x 0 0 x 1 0 x 1 1 x 0 1 x 0 x in Kg/h. - Air at 0 C and 1,0 bar in [Nm 3 /h]. - Water at C in l/h. For other, not so dense liquids, other than water at C apply: V L = A L. VA ó V A = V L. L A V A = Water flow according to table. V L = Liquid flow. VA = Water density at a C. (VA=99 Kg/m 3 ). V L = Liquid density Calculus according to SO-1-1:0 Safety valves. ECONOSTO OY Lukkosalmentie 1, PL 30, 7021 KUOPO, Finland Tel. +35 (0)