Manual

ManualsBrandsARI Armaturen ManualsEquipmentSTEVI 460 DN 300-500 EN

Table Of Contents

Contents

Rev. 0040304002 0410 englisch

1.0 General information on operating

instructions ..................................................... 2

2.0 Notes on possible dangers............................ 2

2.1 Significance of symbols ..........................................2

2.2 Explanatory notes on safety information .................2

3.0 Storage and transport ................................... 2

4.0 Description...................................................... 3

4.1 Scope of applications ..............................................3

4.2 Operating principles ................................................3

4.3 Diagram ..................................................................4

4.4 Technical data .........................................................6

4.5 Marking ...................................................................6

5.0 Installation....................................................... 7

5.1 General notes on installation...................................7

5.2 Requirements at the place of installation ................8

5.3 Installation Instructions concerning actuators .........8

6.0 Putting the valve into operation.................... 9

7.0 Care and maintenance................................... 9

7.1 Replacement of stem sealings ............................... 9

7.1.1 EPDM-ring stem sealing design ....................... 9

7.1.2 Stuffing box packings design ........................... 10

7.1.3 Bellows seal design ..........................................11

7.2 Replacement of internal parts .............................. 12

7.2.1 Replacement of plug and stem ........................ 12

7.2.2 Replacement of the seat ring........................... 12

7.3 Tightening torques................................................ 13

7.3.1 Tightening torques for nuts ............................. 13

7.3.2 Tightening torques for seatrings ..................... 13

8.0 Troubleshooting........................................... 13

9.0 Troubleshooting table ................................ 14

10.0 Dismantling the valve or the top part ...... 15

11.0 Warranty / Guarantee ................................. 15

12.0 EC declaration of conformity.................... 16

Contents

Operating and installation instructions

Straight through stop valves - STEVI

405 / 460

DN 300 - 500

Series 405 Series 460

Summary of content (16 pages)

PAGE 1
Operating and installation instructions Straight through stop valves - STEVI® 405 / 460 DN 300 - 500 Series 405 Series 460 Contents 1.0 General information on operating 7.0 Care and maintenance................................... 9 instructions ..................................................... 2 7.1 Replacement of stem sealings ............................... 9 2.0 Notes on possible dangers............................ 2 7.1.1 EPDM-ring stem sealing design ....................... 9 2.
PAGE 2
Operating and installation instructions Str. thr. stop valves - STEVI® 405 / 460 (DN300-500) 1.0 General information on operating instructions These operating instructions provide information on mounting and maintaining the fittings. Please contact the supplier or the manufacturer in case of problems which cannot be solved by reference to the operating instructions. They are binding on the transport, storage, installation, start-up, operation, maintenance and repair.
PAGE 3
Operating and installation instructions Str. thr. stop valves - STEVI® 405 / 460 (DN300-500) 4.0 Description 4.1 Scope of applications Valves are used for „interrupting the flow of liquids, gases and vapours in chemical, processing, and other plants“. ATTENTION ! - Refer to the data sheet for applications, limits on use and possibilities. - Certain media require or preclude the use of special materials. - The valves are designed for standard operating conditions. If conditions exceed these requirements, e.
PAGE 4
Operating and installation instructions Str. thr. stop valves - STEVI® 405 / 460 (DN300-500) 4.3 Diagram Fig. 1: Series 405 Page 4 Rev.
PAGE 5
Operating and installation instructions Str. thr. stop valves - STEVI® 405 / 460 (DN300-500) Fig. 2: Series 460 Rev.
PAGE 6
Operating and installation instructions Str. thr. stop valves - STEVI® 405 / 460 (DN300-500) 4.4 Technical data for - Principal dimensions - Pressure-temperature-ratings, etc. refer to data sheet. 4.5 Marking Nominal diameter Manufacturer Nominal pressure Flow characteristic Type-Number Kvs-value CE-marking Notified body Plug design Customer-specific information Serial-No. Material of internal parts Stem sealing Year of manufacture clear speech (1. and 2. position) Fig.
PAGE 7
Operating and installation instructions Str. thr. stop valves - STEVI® 405 / 460 (DN300-500) 5.0 Installation 5.1 General notes on installation The following items should be taken into account besides the general principles governing installation work: ATTENTION ! - Remove flange covers if present. - The interior of valve and pipeline must be free from foreign particles. - Note installation position with reference to flow, see mark on valve.
PAGE 8
Operating and installation instructions Str. thr. stop valves - STEVI® 405 / 460 (DN300-500) 5.2 Requirements at the place of installation The place of installation should be easily accessible and provide ample space for maintenance and removing the actuator. The valve should preferably installed vertically with the actuator at the top. Inclined or horizontal installation without supports is permissible only with light actuators.
PAGE 9
Operating and installation instructions Str. thr. stop valves - STEVI® 405 / 460 (DN300-500) 6.0 Putting the valve into operation ATTENTION ! - Before putting the valve into operation, check material, pressure, temperature and direction of flow. - Regional safety instructions must be adhered to. - Residues in piping and valves (dirt, weld beads, etc.) inevitably lead to leakage. - Touching the valve when it is operating at high (> 50 °C) or low (< 0 °C) media temperatures can cause injury.
PAGE 10
Operating and installation instructions Str. thr. stop valves - STEVI® 405 / 460 (DN300-500) 7.1.2 Stuffing box packings design Stuffing box packings (pos. 12) require maintenance. If leaks develop, immediately tighten the hexagon nuts (pos. 18) gradually until the packing (pos. 12) stops leaking. The service life of stuffing box packings (pos. 12) can be increased by checking regularly leakage. If leaks can no longer be stopped by tightening the nuts (pos. 18), a new packing ring (pos.
PAGE 11
Operating and installation instructions Str. thr. stop valves - STEVI® 405 / 460 (DN300-500) 7.1.3 Bellows seal design If the stem leaks, the bellows seal (pos. 20.3) is defective. The leak can initially be stopped by tightening the stuffing box gland with nuts (pos. 20.29). Stem and bellows (pos. 20.3) can only be replaced together. Replacement of bellows seals: ATTENTION ! Refer to item 10.0 and 11.0 before dismantling the valve. - Remove actuator.
PAGE 12
Operating and installation instructions Str. thr. stop valves - STEVI® 405 / 460 (DN300-500) 7.2 Replacement of internal parts 7.2.1 Replacement of plug and stem ATTENTION ! Refer to item 10.0 and 11.0 before dismantling the valve. - Remove actuator. (Refer to operating instructions for actuator!) Series 405: - Loose nuts (pos. 11). - Detach stuffing box housing (pos. 7). - Slacken nuts (pos. 18) by about 2-3 turns. - Extract plug (pos. 3) and stem (pos. 5). - Drive pin (pos. 4) out with a drift.
PAGE 13
Operating and installation instructions Str. thr. stop valves - STEVI® 405 / 460 (DN300-500) 7.3 Tightening torques 7.3.1 Tightening torques for nuts M 24 = 340 - 410 Nm M 27 = 340 - 410 Nm 7.3.2 Tightening torques for seatrings DN 300 = 3850 Nm ! Refer to operating instructions for actuator concerned for installing actuators ! 8.
PAGE 14
Operating and installation instructions Str. thr. stop valves - STEVI® 405 / 460 (DN300-500) 9.0 Troubleshooting table ATTENTION ! - read item 10.0 and 11.0 prior to dismantling and repair work! - read item 6.
PAGE 15
Operating and installation instructions Str. thr. stop valves - STEVI® 405 / 460 (DN300-500) 10.0 Dismantling the valve or the top part ATTENTION ! The following points must be observed: - Pressureless pipe system. - Medium must be cool. - Plant must be drained. - Purge piping systems in case of caustic, inflammable, aggressive or toxic media. 11.0 Warranty / Guarantee The extent and period of warranty cover are specified in the "Standard Terms and Conditions of Albert Richter GmbH & Co.
PAGE 16
Operating and installation instructions Str. thr. stop valves - STEVI® 405 / 460 (DN300-500) 12.0 EC declaration of conformity ARI-Armaturen Albert Richter GmbH & Co.