North American Manual Reset and Motorized Valves

Transcription

1 Combustion North merican Manual Reset and Motorized s 1518 Manual Reset 1519 Motorized 1518/1519 utomatic Shutoff s gency approvals: UL, FM, CS Proof-of-closure switch igh Capacity - igh Pressure Durable construction Robust switches and terminal blocks

2 Page 2 TYPICL PPLICTIONS North merican utomatic Shutoff s are used in fuel supply lines on industrial furnaces, ovens, kilns, boilers, and other heating equipment. They shut off fuel automatically and instantly upon any break in electric power or the safety circuit.they cannot be opened until an interlocking safety or control circuit is complete, restoring power to the valve. They can be suitable for lines carrying a variety of gases and liquids used in processes other than combustion. Use Manual Reset s where "manned" operation is required or preferred. Specify Motorized s where remote or "unmanned" operation is needed. Not recommended for oil applications where on/off cycling is more than 6 cycles per hour and 1519 s are for emergency automatic shutdown only--following any shutdown, close manual shutoff valves promptly. STNDRDS ll North merican 1518 and 1519 utomatic Shutoff s have the following standard characteristics: Enclosure meets NEM 1, 3, 3S, 4, 12, and CS 2, 3, and 4. SPDT "Proof-of-Closure" switch. DPDT " Open" switch. Prewired terminal block. Pipe s ¾" through 6". Cast iron body. 115 V ac / 60 z operation (other characteristics available). Top assembly position is field rotatable in 90 increments. 6 seconds opening time for most motorized valves on 60 z. Meets Class VI valve seat leakage. OPTIONS Steel body. Expanded capacity ports. Companion flanges (order separately). Not available for all s. s carry FM, UL, and CS labels for natural gas and propane gas. ll are IRI approvable. Maximum pressure differentials vary from 30 to 125 psi (depending on ). Sizes -7 and -8-XF are not suitable for #2 oil. ll valves (except XF, and -8-XFS. 125 F [52 C]) are suitable for ambient and fluid temperatures from 20 F to 140 F ( 28 C to 60 C) on C electrical power. action closes aggressively within one second of power loss. two-stage latch/return motion by the operator can open a Manual Reset after it is re-powered. Motorized s allow flow to begin within one second of powering: They are fully open in six seconds for most s. PERFORM FREQUENT FIELD INSPECTIONS, LEK TESTS, ND PROPER MINTENNCE TO SSURE CONTINUED STISFCTORY VLVE PERFORMNCE. REFER TO INSTLLTION/MINTENNCE BULLETINS. DO NOT OPERTE MOTORIZED VLVES MORE TN ONE CYCLE PER MINUTE FOR PERIODS OVER 15 MINUTES TO VOID OVERETING MOTOR. GENCY PPROVLS FM 7400 UL 429 CS 6.5 C/I

3 Page DESIGN DETILS Top ssembly Large, two-color OPEN/SUT indicator provides easy identification of valve position. Built-in wiring compartment and terminal block eliminates need for external junction box. 2 2 ll 1518 & 1519 (Except X) X Only Terminal block includes 12 number-coded positions. uxiliary switches provide DPDT proof-of-open and SPDT "proof-of-closure" to meet insurance and approval requirements. Good practice dictates that auxiliary switches used in main automatic shutoff valves normally be used for signal duty only. In a block-and-vent system, blocking valve and normally open vent valve may be powered through the "proof-of-closure" switch of the main automatic shutoff valve; but all three valves must be powered through the appropriate normally open flame relay contact. Enclosure meets NEM 1, 3, 3S, 4 and 12, and CS 2, 3 and 4 standards (when suitable electrical connections are made). Lubrication-free design means minimal maintenance requirements. Field- rotatable top assembly provides four positions for complete piping convenience. s feature solenoid-actuated internal latching mechanism, except X which have rack-and-pinion/solid state/magnetic clutch design. When a motorized valve is energized, drive motor opens valve in 6 to 12 seconds, dependent on valve. Body Metal-to-metal seating dœsn t wear out; it "wears in." Disc wipes valve seat clean during each operation. Rising stem design with straight-through flow reduces pressure drop. Cast iron or cast steel body to meet application requirement. 8 Built-in over-travel at closed position for positive shut-off. Test connections provided both upstream and downstream of valve disc. ccessories Companion Flange Sets (flat-faced) facilitate installation of flanged valves. Order separately. Wheel and Chain assemblies allow operation of manual valves in otherwise inaccessible overhead locations. To order, specify valve with remote reset wheel and chain ( through -5). Every valve is operationally tested and meets requirements of NSI B Class VI seat leakage when it leaves our plant. WRNING: leak test should be performed on a quarterly basis to assure continued safe and reliable operation. Each valve should be checked with available line pressure. bsolute zero leakage may not be obtained in the field. ny valve that exceeds the allowable leakage, as set forth by your local codes or insurance requirements (15 bubbles per minute), should be removed from service and your North merican representative should be contacted.

4 Page 4 CPCITIES and VLVE SELECTION CRTS scfh Natural Gas with 0.65 Specific Gravity at 70 F " C 6" RS 4" C 4" CP RS 3" CP RS 2½" CP RS 3" RS 2½" RS 2" RS 1½" RS 1¼" RS ¾ and 1" RS 1172 Cv 869 Cv 719 Cv 490 Cv 423 Cv 304 Cv 173 Cv 127 Cv 86 Cv 53 Cv 45 Cv 20 Cv " C 6" RS 4" C 4" CP RS 3" CP RS 2½" CP RS 3" RS 2½" RS 2" RS 1½" RS 1¼" RS ¾ and 1" RS 1172 Cv 869 Cv 719 Cv 490 Cv 423 Cv 304 Cv 173 Cv 127 Cv 86 Cv 53 Cv 45 Cv 20 Cv " C 6" RS 4" C 4" CP RS 3" CP RS 2½" CP RS 3" RS 2½" RS 2" RS 1½" RS 1¼" RS ¾ and 1" RS 1172 Cv 869 Cv 719 Cv 490 Cv 423 Cv 304 Cv 173 Cv 127 Cv 86 Cv 53 Cv 45 Cv 20 Cv P (inches wc) Based on 5"wc inlet To calculate gas flow at other pressures: 2 2 Q = 1360 Cv ( P 1 P 2 ) [ 2 GT ] ½ P (inches wc) Based on 1 psi inlet Q = scfh G = specific gravity P 1 = inlet psia P 2 = outlet psia T = temp. (460 + F) PPROXIMTE OIL CPCITY Based on #2 Fuel Oil (60 F, 30 PI) at P = 1 psig P (inches wc) Based on 5 psi inlet gph 1518/ / / UL/FM/CG SNCTIONED scfh Nat'l Gas at 1 osig P Manual Max. psi Motor Timing Size Cv w/2 psig inlet Reset Motorized at Inlet on 60 z (sec.) -0 (¾") (1") S S -2 (1¼") (1½") S S -4 (2") S S (F) (F) (2½") E(F) E(F) EFS EFS (3") E(F) E(F) EFS EFS EF EF (4") EFS EFS XF XFS F (6") FS XF XFS Maximum operating pressure differential must not exceed the maximum inlet pressure. (F) = Optional Flanged S = Steel Body E = Extra Capacity F = Standard Flanged U = Non-sanctioned X = Rack and Pinion Operator

5 Page 5 ELECTRICL DT General ll standard shutoff valves are designed for operation on 115 V 60 z power supply. Optional voltages, z, direct current, or special switches, involve extra cost and extended delivery. Specify power characteristics when ordering. solenoid or circuit board is energized whenever valve is powered. olding current volt-amperes are continuous once energized. Motor on any 1519 is powered only during the opening stroke. The normally closed contact of a limit switch breaks motor circuit when full-open position is reached. Flow begins within 1 second of powering. Full closure is complete within 1 second after de-energizing. Series X only Standard 120 V power input is converted by a circuit board (no solenoid) to 90 V dc output to a magnetic clutch that is energized whenever valve is powered. Circuit board components also act as a time delay, allowing 1 10 second response lag after main power interruption (this helps avoid nuisance shutdowns). Volt-ampere (V) ratings ll solenoid, circuit board, and motor ratings are shown in Table I. Total connected load on any valve should not exceed 2000 V. This limitation includes the maximum consumption shown in Table I plus the V consumption of external equipment powered by the auxiliary switches at any one time. TBLE I V Ratings Size (ac operation) Type (inches) Series Opening olding ¾ Manual Reset ½ E ¾ Motorized 2½ E X Wiring Diagrams Each automatic shutoff valve includes one of the wiring diagrams shown below and on Page 4. Switch contacts are shown with the valve shut, unpowered. Wiring shown above the terminal strip is internal. Wiring below terminal strip is external (field), as required. ll wires are number-coded as shown to match terminals. Terminals "2" and "DC" are neutral; all others are hot. WRNING: Do not attempt field repair of valve body, top assembly, or motor drive unit. ny alterations could be dangerous, and will void all warranties. TYPICL WIRING FOR LL VLVES EXCEPT X SWITC CONTCT POSITIONS SOWN WIT VLVE CLOSED MOTORIZED VLVE ONLY VLVE OPEN SWITC VLVE CLOSED SWITC (FM PROOF OF CLOSURE) SOLENOID GROUND WRNING: VLVE MUST BE WIRED S SOWN MTR DC+ DC INTERNL WIRING INDEPENDENT SOLENOID POWER SUPPLY (C or DC) L1 OT L2 NEU DPDT C POWER SEE NME PLTE FOR VOLTGE ND Z SPDT FIELD WIRING SWITC RTINGS Total connected load not to exceed 1700 V including values from Table I SPDT DPDT 125 V ac- 15 amp 125 V ac- 10 amp 250 V ac- 15 amp 250 V ac- 10 amp 125 V dc- 0.5 amp 125 V dc- 0.3 amp 250 V dc amp 250 V dc amp TYPICL SWITC CTION (O = Open contacts; X = Closed contacts between indicated terminals.) Open Switch Closed Switch Position Fully Closed O X O X O Intermediate O X O O X Fully Open X O X O X

6 Page 6 SWITC CONTCT POSITIONS SOWN WIT VLVE CLOSED INTERNL WIRING GROUND WIRING FOR X ONLY VLVE CLOSED SWITC (FM PROOF OF CLOSURE) VLVE OPEN SWITC C MTR PRINTED CIRCUIT BORD WRNING: CIRCUIT BORD GENERTES 90 TO 120 V dc WEN ENERGIZED. DO NOT TOUC ELEC- TRICL COMPO- NENTS, EXPOSED LEDS, TERMINLS, OR CONTCTS. VLVE MUST BE WIRED S SOWN. FIELD WIRING SPDT SWITC RTINGS Total connected load not to exceed 1600 V including values from Table I SPDT DPDT 125 V ac- 20 amp 125 V ac- 10 amp 250 V ac- 20 amp 250 V ac- 10 amp 125 V dc- 0.5 amp 125 V dc- 0.3 amp 250 V dc amp 250 V dc amp 3 2 L2 L1 NEU OT C POWER SEE NME PLTE FOR VOLTGE ND Z 1 DC DPDT TYPICL SWITC CTION (O = Open contacts; X = Closed contacts between indicated terminals.) DC+ 120 V dc OPTIONL CLUTC POWER NOTE DC POLRITY MUST BE S SOWN DC CLUTC Open Switch Closed Switch Position Fully Closed O X O X O Intermediate O X O O X Fully Open X O X O X VLVE BODY ND TRIM Standard 1518 Manual Reset and 1519 Motorized s have cast iron bodies with internal materials listed in table below under "Standard Trim." Cast steel bodies are available. They are specified by adding an "S" after the code number for. Example: S. Body and Bonnet Standard Body "S" Body Specifications and Bonnet and Bonnet Material CI, G3000, CL30 Cast Steel B STM Spec WCB Internals Item No. Description Body B Bonnet 3 Seat 4 Disc 5 Follower Ring 6 Seat O-Ring* 7 Body O-Ring* 8 Wavy Spring 9 Stem 10 Spring pin (when required) 11 Stem O-Ring* 12 Striker Plate 13 Bumper* Clevis Compression Ring For 6" 808, and 4" & 6 " 7000 valves only: not shown in illustration Standard Trim ¾ - 2" 2 ½ - 3" 4-6" Cast Iron STM 126, Class B 400 SS ardened Ductile Iron PEEK Buna N Buna N 300 SS 17-4 P SS Carbon Steel Buna N 17-7 P SS Buna N Other trim packages are available per request. Please contact engineering. i.e. different body, seat, disc. spring pin, and body seal and bumper materials are available. * Body seal bumper. Note: For "U" valves, please submit fuel anaylisis to North merican office to determine suitability of valves. 2 ½ - 4" Ductile Iron in open position 10 B "-E" verson shown Typical stem/disc connection used with smaller d valves FLOW 8 Body B

7 Page MNUL RESET Fig. 1 N G L C M D J B K E F ¼" NPT Test Ports ll valve positions are as shown when shipped as a separate item. Orientation may be different when part of packaged fuel train. Fig. 1 P rad. R rad. S dia. of holes T no. of holes equally spaced Fig. dimensions in inches designation no. B C D E F G J K L M N ¾ ½ 4½ ½ (S) ½ 4½ ½ ¼ 11¾ ½ 4½ ½ (S) 1 1½ ½ 4½ ½ (S) ½ ¼ ½ ½ 5½ ¼ 3½ ¼ F 1 2½ ½ 5½ ½ 2 3½ ¼ E 1 2½ / ¾ ¼ EF(S) 1 2½ / ¾ ½ 2¼ 4½ / ½ E ¾ ½ EF(S) ¾ EF(S) ¾ F(S) ¾ ¾ ½ 3¼ 7½ Fig. dimensions in inches wt, designation no. P R S T lb (S) (S) (S) F 1 3½ 2¾ ¾ (4) E EF(S) 1 3½ 2¾ ¾ (4) E EF(S) 1 3¾ 3 ¾ (4) EF(S) 1 4½ 3¾ ¾ (8) F(S) 1 5½ 4¾ 7/8 (8) 140 F = Standard Flanged (S) = Optional Steel Body S = Standard Steel Body E = Extra Capacity X = Rack & Pinion Operator WRNING: leak test should be performed on a quarterly basis to assure continued safe and reliable operation. Each valve should be checked with available line pressure. bsolute zero leakage may not be obtained in the field. ny valve that exceeds the allowable leakage, as set forth by your local codes or insurance requirements (15 bubbles per minute), should be removed from service and your North merican representative should be contacted.

8 Page MOTORIZED C D E F Fig. 2 B ¼" NPT Test Ports Fig. 2 G P rad. R rad. J S dia. of holes T no. of holes equally spaced K ll valve positions are as shown when shipped as a separate item. Orientation may be different when part of packaged fuel train. C D E F Fig. 3 G P rad. R rad. S dia. of holes T no. of holes equally spaced B K ¼" NPT Test Ports Fig. dimensions in inches wt, designation no. B C D E F G J K P R S T lb ¾ ½ ½ (S) ½ ½ ¼ 11¾ 5½ ½ (S) 2 1½ ½ ½ (S) ½ 7½ ¼ ½ ½ 7½ ¼ 3½ F 2 2½ ½ 7½ ½ 2 3½ 3½ 2¾ ¾ (4) E 2 2½ ½ ¼ EF(S) 2 2½ ½ ½ 2¼ 4½ 3½ 2¾ ¾ (4) ½ 7½ E ½ ½ EF(S) ½ ¾ 3 ¾ (4) EF(S) ½ ½ 3¾ ¾ (8) XF(S) ½ 3¾ ¾ (8) XF(S) ½ ½ 4¾ 7 8 (8) 215 DIMENSIONS SOWN RE SUBJECT TO CNGE. PLESE OBTIN CERTIFIED PRINTS FROM FIVES NORT MERICN COMBUSTION, INC. IF SPCE LIMITTIONS OR OTER CONSIDERTIONS MKE EXCT DIMENSION(S) CRITICL. WRNING: Situations dangerous to personnel and property may exist with the operation and maintenance of any combustion equipment. The presence of fuels, oxidants, hot and cold combustion products, hot surfaces, electrical power in control and ignition circuits, etc., are inherent with any combustion application. Components in combustion systems may exceed 160 F (71 C) surface temperatures and present hot surface contact hazard. Fives North merican Combustion, Inc. suggests the use of combustion systems that are in compliance with all Safety Codes, Standards, Regulations and Directives; and care in operation. CONTCT US: Fives North merican Combustion, Inc East 71st Street - Cleveland, O US Tel: Fax: fna.sales@fivesgroup.com Copyright Fives - ll rights reserved Bulletin 1518/ /18