SSV-Actuator HON 673 (K 1a, K 2a)

Transcription

1 SSVActuator HON 673 ( 1a, 2a) OPERATING AND MAINTENANCE INSTRUCTIONS/ SPARE PARTS EDITION 01/2017 Serving the Gas Industry orldwide

2 1. General Our leaflet gives full information with technical data, different versions, and dimensions of the complete safety shutoff valve type HON 720. Our brochure "General Operating Instructions for Gas Pressure Regulators and Safety Devices" will be useful to fit the valve into the line, put it into service and find faults that might disturb its operation. The construction, setup, supervision and maintenance of gas pressure regulating stations are subject to special national technical rules which should be strictly observed, for example those given by the German DVG orksheets G 490, G 491, and G 495. The frequency of periodical maintenance to be foreseen for the safety shutoff unit HON 673 should be determined according to the prevailing service conditions and the type and composition of the gaseous medium. e, therefore, obstain from imposing any fixed intervals. In Germany please refer to the recommendations given by the DVG orksheet G 495 on "Gas Pressure Regulating ations and Metering ations for High Gas Volumes Supervision and Maintenance". 4.5 Spare parts drawing for electric remote indication (not valid for SSV HON 703/704) For maintenance all parts are to be cleaned and subjected to a thorough visual inspection. A visual inspection should not be omitted when the course of operation or performance tests have shown lack of response accuracy. Particular care should be given to the checking of sealings and diaphragms, as well as all carrying and movable parts. Damaged parts should be replaced by new ones. The numbers referred to in the maintenance instructions are identical with those of the spare parts drawings and spare parts lists. e recommend to keep all parts that are specially marked "" in the spare parts lists in stock for prompt maintenance availability. This safety shutoff unit is used in the following main bodies. Therefore please refer also to the relevant manuals for "Operation and Maintenance, Spare Parts" stated below: Parts marked "" are to be held in stock for maintenace purposes valve type HON 300 HON 330 HON 332 HON 402 HON 703 HON 704 HON Special operating hints manual: "Operation and Maintenance, Spare Parts" Spare parts list for electric remote indication no. description material HON part no closing lid spring guide proximity switch relais spring oring metal ring disc Seeger ring intermediate piece spring housing F F G Opening the safety shutoff unit (SSV) The SAV is provided with underpressure shutoff release. Reengagement is possible only after the pressure pre Parts marked "" are to be held in stock for maintenace purposes vailing at the measuring point comes up to the service pressure p a. The pressure compensation necessary for reopening is automatically effected by the pressure compensating valve integrated in the valve plate. F... spring steel G... aluminium alloy... cast aluminium... rubberlike plastic material p p.11

3 3.1 test switching 4.3 spare parts drawing HON 673 1a and 2a actuator unit for HON 703 and HON 704 Test switching may only be carried out if the control elements are mounted in the main valve body, otherwise mechanical damages could result. ATTENTION: closing cap (1) must be removed from the valve stem (5, 52, 60) for test switching and during normal operation (screw off cap immediately after reengagement). version PN 63 1a 2a 3.2 torque table screw no. torque M A in Nm remarks 1a 2a version PN version PN lubricants parts (apply thinly) lubricant HON stock no. all orings, diaphragm clamping rim all moving areas silicone grease thread of the valve plate (3), thread of the closing lid (1, 107) assembly paste version PN 100 version PN100 special version for overpressure release only (without reaction upon diaphragm rupture) all screws and screwed pipe connections high duty grease assembly and adjusting tools tool HON part no. for no. remarks tongs A 19 DIN tongs D 19 DIN not necessary for HON 300, HON 703, and HON 704 SSV setpoint adjuster and 4 Parts marked "" are to be held in stock for maintenence Parts without no. see page p p.9

4 spare parts drawing HON 673 1a and 2a actuator unit for HON 330 and HON 332 actuator unit for HON 402 and HON 720 1a 2a 4.2 spare parts list HON 673 1a and 2a actuator unit for HON 300 no. description 1 closing cap 2 sealing washer 3 spring plate 4 spring plate 5 valve stem, complete 6 spring for underpressure release, at option Ø 1,1 mm (light blue) Ø 1,2 mm (white) Ø 1,4 mm (black) 7 spring for overpressure release, at option Ø 2,5 mm (yellow) Ø 3,2 mm (bright red) Ø 3,6 mm (dark red) Ø 4,75 mm (white) 8 spring retainer 9 oring spring housing 12 arresting sleeve, complete 13 diaphragm 14 hexagonal nut 15 diaphragm plate 16 pressure disc ball 19 oring 20 SSV bottom cover, complete 21 oring 22 spring 23 connecting pipe 24 valve plate with Überströmdüse 25 valve plate, vulkanized 26 diaphragm plate, complete 27 sealing washer 28 switching valve HON oring 30 supporting ring 31 ring 32 intermediate ring 33 hexagonal nut 34 arresting pipe 35 Seeger circlip material Ms N F F F F F F F G /N/ F N G F / / // F HON part no Parts marked "" are to be held in stock for maintenance Parts marked "" are to be held in stock for maintenance Parts without no. see page 5 N F... stainless steel... spring steel Ms G...aluminium alloy... brass... cast aluminium... plastic material... rubberlike plastic material p p.7

5 4.2 spare parts list HON 673 1a and 2a no. description material HON part no. 4. spare parts 4.1 spare parts drawing HON 673 1a and 2a actuator unit for HON retaining pipe adapter version for overpressure nad underpressure release cap nut compression joint a 2a actuator unit for HON 330, HON 332, and HON 720/ spring F F valve stem, complete SAVBoden, vollständig oring N intermediate piece valve plate, vulkanized valve plate, vulkanized / / valve stem, complete N SSV bottom cover, complete //N/ version for underpressure release special version for overpressure release only (without reaction at diaphragm rupture) Parts marked "" are to be held in stock for maintenance N...aluminium alloy... rubberlike plastic material... stainless steel F... spring steel Parts marked "" are to be held in stock for maintenance p p.5

6 4.4 spare parts list for HON 673 1a and 2a actuator unit for HON 703 and HON 704 actuator 1a, 2a for HON 720 DN 25 and for HON 300, HON 330, HON 332 HON 402 no description switching valve HON 9192 sealing ring connecting piece cap nut compression joint oring hexagonal nut material HON part no The pressure compensation is effected automatically when the valve plate is opened: Screw out closing cap (1), turn upsidedown, screw it on to the valve stem (5, 52, 60) and turn the lid slowly towards the body. The pressure compensation will respond. Pull the locking cap back to the stop and let it glide back slowly: The SSV reengages and stays in the "OPEN" position. closing cap (1) valve stem (5, 52, 60) locking screw oring ATTENTION: In order to ensure perfectly reliable SAVrelease 110 safety ring performance after reengagement, it is indispensable 111 diaphragm lid to screw the locking cap (1) back into its normal 112 valve stem, complete N position guide bush N oring actuator housing diaphragm lid actuator 1a, 2a for HON 703 and HON switching valve HON 9191 oring The necessary pressure compensation is effected by opening the bypass valve (ball valve or needle valve type HON 913) situated at the side of the main valve body actuator housing retaining bush, complete ATTENTION: The bypass ball valve must be closed again after reengagement intermediate ring oring diaphragm Screw off the closing cap (107), turn it around and place it on th evalve stem (112). Push down the valve stem to the stop and let it gide slowly upwards again. The SSV reengages and stays in the "OPEN" position. 140 pressure disc F Seeger ring F Special maintenance instructions Trip the SAV before you remove it from the body. SAV valves provided with underpressure release (standard version) will close automatically. Prior to dismantling the tripping mechanism, the valve plate and the valve stem (5, 52, 60, 112) of a measuring unit released by underpressure should be moved back to reach at least its reengagement position (this refers to HON 703 and HON 704). It is important that the valve stem ( 5, 52, 60, 112) can be moved easily and smoothly. Should any faults or damages of material (e.g. ridges or flaws) be detected at the valve stem shoulder, the valve stem has to be replaced by a new one. Parts marked "" are to be held in stock for maintenance work N... stainless steel F...aluminium alloy... spring steel... rubberlike plastic material The contact surfaces between spring retainer (8) and diaphragm plate (26), or switch bush (12, 136), should be kept free from grease. hen mounting the ball release mechanism, pull back valve stem (5, 52, 60, 112) or for HON 703, HON 704 press it down, and then push the diaphragm plate (26) or the retaining bush (12, 136) over the balls (into the same position as underpressure release) p p.3

7 For More Information To learn more about Honeywell s Advanced Gas Solutions, visit or contact your Honeywell account manager GERMANY Honeywell Process Solutions Honeywell Gas Technologies GmbH Osterholzstrasse assel, Germany Tel: +49 (0) Fax: +49 (0) HON Honeywell International Inc.