GV-A. Manufactured by Germany's Elster GmbH High-Performance Gas Solenoid Valve for Industrial Applications

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1 No. CP-SS-1880E GV-A TM Manufactured by Germany's Elster GmbH High-Performance Gas Solenoid Valve for Industrial Applications Overview The GV-A high-performance gas solenoid valve for industrial applications is used as a safety shutoff valve for gas supplied to gas burners and other gas combustion devices. This is an imported product from Germany s Elster GmbH TM. eatures This product consists of a valve unit and dedicated flange, and includes a solenoid coil with a compact design. The maximum operating pressure is 50 kpa. This product is available in both quick opening and slow opening types. The quick opening type has a maximum flow rate adjustment (variable) mechanism. The slow opening type has an initial flow rate adjustment mechanism and a maximum flow rate adjustment mechanism. The valve close confirmation switch has an indicator that allows visual confirmation of operation. The valve is also available with a POC (proof of closure) switch. This device is compliant with EN 161. Also, size 1 of the valve has obtained SIL 3 and PLe certification. Blue LED shows turning on electricity to this product. Photo: Valve with threaded flange (sold separately) Blue LED which shows turning on electricity SIL 3 (Safety Integrity Level 3) Safety systems must receive safety certification (SIL) by a third party. SIL3 is a level where the risk reduction factor can be reduced from 1/1000 to 10,000 compared to plants where safety measures are not adopted. SIL1 enables risk to be reduced from 1/10 to 1/100. PL (Performance Level) The performance level indicates the ability of safety-related parts to perform a safety function. Hardware failure rates and software safety requirements were added to the qualitative requirements described in category B, items 1 to 4 in EN and ISO :1999 (JIS B :2000) to provide quantitative safety levels designated from PLa to PLe. 1

2 Specifications Compatible gas types Natural gas, LP gas (propane, butane) *1 Maximum operating 50 kpa pressure Connection Rp (parallel female threads for ISO 7-1 pipe) Cv See the tables below for the flow rate characteristics, mass, and power consumption. Gas leakage GV-A100, GV-A200: 40 ml/h max. GV-A300: 60 ml/h max. (at 50 kpa, internal and external leaks) Valve housing Aluminum alloy Valve sealing material NBR Rated supply voltage 100 Vac +10%/ 15%, 50/60 Hz 200 Vac +10%/ 15%, 50/60 Hz (depending on the model) Allowable ambient temperature -20 C to +60 C (without condensation) Storage ambient temperature -20 C to +40 C (without condensation) Protection class IP65 (except for electrical wire ports) Standards compliance EN and EN 161 class A group 2 Opening operation Quick opening and slow opening types Valve opening time 1 second or less (quick opening type), approx. 10 seconds or less (slow opening type) Valve closing time 1 second or less (both quick opening and slow opening types) Initial flow rate adjustment 0% 70% (slow opening type only) Maximum flow rate % adjustment range POC switch contact rating Vdc, ma *2 (POC: proof of closure) POC switch lifespan 200,000 operations Accessories Without POC switch: M20 cable ground (1), flange O-ring (2), bolt set (4), operation manual With POC switch: M20 cable ground (2), flange O-ring (2), bolt set (4), operation manual Operation lifespan The operation lifespan per valve unit is compliant with EN and EN 161. Model number Operation count (number of operations) Lifespan Number of years GV-A100, GV-A , GV-A , This is based on the operation count or the number of years, whichever is smaller. Prolonged operation at high temperatures can result in premature wear of rubber materials and an operation lifespan shorter than the above values. *1 This device is intended for use with the indicated flammable gases. It is not recommended for use with air. *2 The maximum ratings according to the switch manufacturer are 125 Vac / 30 Vdc, 0.1 A (resistive load), but usage at Vdc, ma is recommended because of the low-current gold switch contacts. low Rate Characteristics, Weight, and Power Consumption Model number Connection port diameter low rate (m 3 /h) at differential pressure of 0.25 kpa Specific gravity 0.65 Specific gravity 1.53 Cv low rates are for 15 C and kpa GV-A A (Rp 3/8) 15 A (Rp 1/2) W (37VA) *2 20 A (Rp 3/4) A (Rp 1) GV-A A (Rp 1) W 32 A (Rp 1 1/4) (59VA) *2 40 A (Rp 1 1/2) A (Rp 2) GV-A A (Rp 1 1/2) W 50 A (Rp 2) (59VA) *2 65 A (Rp 2 1/2) *1 Power consumption increases by 20% in -20 C. *2 These VA are reference values. Mass (kg) Power consumption *1 100 V 200 V 33W (37VA) *2 54W (60VA) *2 54W (60VA) *2 2

3 low Rate Characteristics The graph assumes a specific gravity of 0.65, temperature of 15 C, and pressure of kpa Differential Pressure (kpa) 1 110: GV-A A flange 115: GV-A A flange 120: GV-A A flange 125: GV-A A flange 225: GV-A A flange 232: GV-A A flange 240: GV-A A flange 250: GV-A A flange 340: GV-A A flange 350: GV-A A flange 365: GV-A A flange low Rate (m 3 /h)

4 Model Number List Base model number GV-A Valve size Operation type Rated supply voltage POC switch POC Inspection switch report orientation Additional process Description High-Performance Gas Solenoid Valve for Industrial Applications 100 Valve size 1 (for port sizes 10 A, 15 A, 20 A, 25 A) 200 Valve size 2 (for port sizes 25 A, 32 A, 40 A, 50 A) 300 Valve size 3 (for port sizes 40 A, 50 A, 65 A) N Quick opening type L Slow opening type P 100 Vac Y 200 Vac *1 G With POC switch *2 0 Without POC switch *1 R Right side as viewed from POC switch and upstream side *2 0 None D With inspection report 0 Without inspection report 0 None Note: Obtain the dedicated flange (sold separately) to match the pipe size to be used. *1 If "G" is selected for POC switch, only "R" can be selected for the POC switch orientation. *2 If "0" is selected for POC switch, only "0" can be selected the POC switch orientation. Parts Sold Separately Threaded flange One pipe flange is included. Two threaded flanges are required for each valve. Model number Product name Product code * Port size 10 A for valve size 1 LV110R/B Port size 15 A for valve size 1 LV115R/B Port size 20 A for valve size 1 LV120R/B Port size 25 A for valve size 1 LV125R/B Port size 25 A for valve size 2 LV225R/B Port size 32 A for valve size 2 LV232R/B Port size 40 A for valve size 2 LV240R/B Port size 50 A for valve size 2 LV250R/B Port size 40 A for valve size 3 LV340R/B Port size 50 A for valve size 3 LV350R/B Port size 65 A for valve size 3 LV365R/B * The product code is a product identification code that is printed on the product package, and it is separate from the model number. The valve size and pipe diameter are indicated by this code. Seal set This set includes O-rings used for joining two valves together. Model number Product name or valve size or valve size or valve size 3 Cable gland set When two POC type products are joined in a double-valve configuration, a terminal box is used. Model number Product name or valve size or valve size or valve size 3 4

5 Valve Unit Internal Structure (without POC Switch) Quick opening type l Slow opening type Maximum flow rate adjustment screw Maximum flow rate adjustment screw Cap Scale Cap Scale Solenoid coil Solenoid coil Strainer Strainer Armature Armature Maximum low Rate Adjustment This product is set to the maximum flow rate position at shipping. Adjust the maximum flow rate based on your usage conditions. Relationship between valve opening and flow rate Valve Opening (Scale) low Rate (U) Initial low Rate Adjustment Method (Slow Opening Type Only) The initial flow rate is the flow rate of gas that flows immediately after the power is turned on. When the power is turned on, the valve slowly opens at a maximum of about 10 seconds. The flow rate when starting can be adjusted in the range from about 0% to 70%. Relationship between damper unit rotation and initial flow rate Adjustment Range of Starting Gas low Rate 0 70 % 100 % 70 % low Rate Adjustment to 70 % (Turn counter-clockwise approx. 5 full turns) Adjustment to 0 % (at shipping) 0 % 0 s 10 s Time 5

6 External Dimensions Quick opening type (without POC switch) l Quick opening type (with POC switch) E G E G LOW H1 H2 LOW H2 H4 L1 L1 Slow opening type (without POC switch) l Slow opening type (with POC switch) E G E G H2 H3 H5 LOW LOW H2 L1 L1 Model number Connection port diameter Dimensions (mm) L1 *1 E H1 H2 H3 H4 H5 G *2 GV-A100 10A (Rp 3/8) 15 A (Rp 1/2) A (Rp 3/4) 25 A (Rp 1) GV-A A (Rp 1) 32 A (Rp 1 1/4) 40 A (Rp 1 1/2) 50 A (Rp 2) GV-A A (Rp 1 1/2) 50 A (Rp 2) 65 A (Rp 2 1/2) *1 The dedicated flange (part ) is sold separately *2 The G dimension was calculated based on data provided by the manufacturer. 6

7 Terminal Connections Connect the high potential (H) to LV1(+) and the low potential (G) to N(-). Connect the ground wire to the ground terminal. Without POC switch l With POC switch LV1 (+) N ( ) Cable for POC switch LV1 N (+) (-) Drive power line When valve is closed Power Supply Wiring Notes Correct connection l Incorrect connection High potential side (H) (Ground fault) Low potential side (G) Power supply N Burner Controller LV1 (Ground fault) Valve (closed) Burner Combustion equipment High potential side (H) Low potential side (G) Power supply N LV1 Valve (open) Burner Controller Burner Combustion equipment uel uel If the solenoid valve is connected correctly, a ground-fault current will not flow to the solenoid valve even if a ground fault occurs due to an insulation failure on the high potential side (H). As a result, the solenoid valve will not open, and no fuel will be released. If the solenoid valve is connected to the high potential side, and if a ground fault occurs as shown in the figure, a ground-fault current will flow to the solenoid valve. As a result, the solenoid valve will open regardless of the operation of the burner controller, and fuel will be released, causing a dangerous situation. 7

8 8 1st Edition: Issued in Dec nd Edition: Issued in eb. 2014