Industrial valves

Industrial valves
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Industrial valves

Product catalog summary
Overview: The document provides comprehensive technical specifications and guidelines for industrial valves manufactured by Stahl-Armaturen PERSTA GmbH. These valves are designed in accordance with DIN and EN standards and comply with the European Pressure Vessel Guideline 97/23/EG. The document details the design, manufacturing, and testing conditions under normal operating conditions.
Specifications:
  • Valves are suitable for non-corrosive, non-chemical, and non-abrasive liquid or gaseous media.
  • Temperature change frequency is approximately 3-6°C per minute.
  • Valves should operate without external influences such as vibrations or corrosive environments.
Customer Requirements: Customers must specify any deviations from normal operating conditions in their inquiries and orders. This allows the manufacturer to recommend appropriate measures, such as special materials or additional equipment to prevent overpressure.
Design and Materials:
  • Valves feature die-forged bodies and bonnets, with hardfaced or welded seats.
  • Materials include 1.0460, 1.0566, 1.5415, 1.7335, and 1.4571, among others.
  • Pressure ratings up to 160 bar and temperature ratings up to 550°C.
Types of Valves:
  • Globe Valves: Available in various models with pressure ratings from PN 10 to PN 160.
  • Gate Valves: Include small and high-pressure variants, with pressure ratings up to PD 63.
  • Swing Check Valves: Available in standard and high-pressure models, with pressure ratings up to PD 63.
Installation and Safety: Customers should implement measures to minimize additional stresses on valves, such as installing vibration dampers and ensuring safe drainage of dangerous media in case of leakage.
Compliance: The valves are CE-marked, indicating conformity with the European Pressure Equipment Directive 97/23/EG.
Additional Information: For further details and warnings, refer to the operation instruction BA 10S.002GB.
Procedures and Standards:
  • Assembly and Maintenance: The document outlines ease of maintenance, such as regrinding body seats and minimizing effort in valve operation.
  • Operating Conditions: Details on permissible operating pressures and temperatures are provided, with specific notes on material performance at high temperatures.
Applications: Valves are suitable for high-temperature steam and water, refining processes, and the petrochemical and chemical industries.
Additional Features:
  • Variants include disc with edge seat, PTFE-stuffing box, and non-rotating stem to reduce packing wear.
  • Special valves include globe valves with insulating sections and monobloc valves.
Design Features: Key design highlights include die-forged valve bodies, stellite-faced seats and wedges, non-rising handwheels, and pressure-sealed bonnets. The valves are designed to minimize wear and ensure optimal sealing and sliding performance.
Pressure and Temperature Ratings: The document specifies admissible operating pressures at various design temperatures for different materials.
Benefits: The valves offer benefits such as reduced wear, protection against dirt, and ease of operation. They are also designed to prevent damage from irregular tightening of gland bolts.
Technical Drawings: The document includes detailed technical drawings and component lists for assembly and maintenance purposes.
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Catalog excerpts

Industrial valves-1

Valves for the industry Globe valves ■ Gate valves ■ Swing check valves

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Industrial valves-2

Industrial valves made by company Stahl-Armaturen PERSTA GmbH are designed according to DIN-Standards, EN-Standards and according to the technical rules like AD and the European Pressure Vessel Guideline 97/23/EG. Design, manufacture and testing of these valves was carried out on condition that the valves are operated under normal operating conditions. Normal operating conditions contain for example the following: ■ Operation with liquid or gaseous media, without special corrosive, chemical or abrasive influences. Frequency of temperature-change of app. 3 – 6 °C per minute. Usual flow rates,...

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Industrial valves-3

Globe valves Shut-off globe valve Lift check valve Shut-off globe valve Lift check valve Bellow seal globe valve / VALTRA High pressure globe valve HD 91 High pressure globe / swing check valve HD 2000 High pressure globe valve HD 92 High pressure globe valve DVA Further standards Special globe valve variants Gate valves Small gate valve Small gate valve / VALTRA Gate valve Gate valve Gate valve Gate valve Gate valve / VALTRA Gate valve / VALTRA Gate valve High pressure gate valve DSK 10 High pressure gate valve DSK 10 High pressure gate valve DSK 10 High pressure gate valve DSK 26 High pressure...

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Industrial valves-4

- Globe valves - Shut-off check valve - 200 AE/BE - PN 10-160 - DN 10-50 ■ Globe valves ■ Lift check valve ■ 240 MT ■ PN 10-160 ■ DN 10-50 Admissible operating pressure [bar] at design temperature [°C]1 1) Operating temperature = design temperature minus temperature surcharge acc. to DIN regulations. 2) Application at more than 400 °C operating temperature only admissible if no intercrystalline corrosion has to be expected 3) At operating temperature 400 °C the material of the screws is 1.4986. 4) In case of screws A4-70 with > 8 x d screw-length the mechanical strength properties acc. to table...

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Industrial valves-5

- Globe valves - Shut-off check valve - 200 AE/BE - PN 10-160 - DN 10-50 ■ Globe valves ■ Lift check valve ■ 240 MT ■ PN 10-160 ■ DN 10-50 Standard features ■ Die-forged valve body and bonnet ■ Outside screw and yoke ■ Position indicator if required ■ Turning and rising stem Depending on the material the globe valves are suitable for water, gas, oil and other non aggressive media Chemical industries, power plants, ship building and Pressure and temperature ratings ■ Pressure rating BW-Ends up to 160 bar ■ 1.5415 only with BW-Ends Further materials on request. Design Highlights Benefits ■ Die-forged...

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Industrial valves-6

Globe valves Shut-off check valve Globe valves Lift check valve Shut-off check valve Lift check valve Technical alterations reserved

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Industrial valves-7

Globe valves Shut-off check valve Globe valves Lift check valve Materials Component Stud Stud 2) Hexagonal nut 1) Hexagonal nut 2) Bonnet Bonnet 4 Disc 4 Disc 4 Spring 4 Stem 4 Packing Gland flange Rivet Gland bolt Washer Hexagonal nut 4 Stem nut 4Cylindrical pin Handwheel Washer Hexagonal nut 4 Spare parts Special materials on request; alterations reserved. Attention: Globe valves with butt weld ends also available in 15Mo3. 1) PN 10-40 2) PN 63-160 3) Seat hard faced 4) Seat hard faced with Cr17 5) Seat hard faced with Stellite 6) ≥ PN 63 seat hard faced with Stellite 7) ≥ PN 63 seat hard faced...

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Industrial valves-8

Admissible operating pressure [bar] at design temperature [°C]1 1) Operating temperature = design temperature minus temperature surcharge acc. to DIN regulations 2) At temperature > 50 °C only applicable for short-time service. 4) Only for globe valves DN 65-80; for lift check valves DN 65-125 Permissible differential pressure (pressure inlet below the disc) acc. to EN 13709. Technical alterations reserved

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Industrial valves-9

Globe valves Shut-off check valve Globe valves Lift check valve Straight bonnet Cast steel body and bonnet Shut-off disc, Fig.No. 200 AE Throttle disc, Fig.No. 200 BE Outside screw and yoke Position indicator if required Turning and rising stem Media Depending on the material the globe valves are suitable for water, gas, oil and other non aggressive media Fields of application Chemical industries, power plant, ship building and other Pressure and temperature ratings ■ ■ ■ Pressure rating SW up to 160 bar Pressure rating BW-Ends up to 160 bar Temperature rating up to 550 °C Further materials on...

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Industrial valves-10

Globe valves Shut-off check valve Globe valves Lift check valve Shut-off check valve Lift check valve Technical alterations reserved

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Industrial valves-11

Globe valves - Shut-off check valve - 200 AE/BE - PN 10-160 - DN 65-200 Globe valves ■ Lift check valve - 240 MT - PN 10-160 ■ DN 65-200 Gland flange Gland bolt Special materials on reguest; alterations reserved 3) Seat hard faced: DN 125,1.0460 seat hard faced with Cr17 4) Seat hard faced with Cr17 5) Seat hard faced with stellite 8) 2 PN 63 seat hard faced with stellite 9) 2 PN 63 seat hard faced with hastelloy The valves are also available in angle pattern up to DN 100 nominal sizes > DN 200 on reguest. inlet below the disc) acc. to EN 13709. BAR 110 70 44 33 21 14 Technical alterations reserved...

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Industrial valves-12

■Globe valves ■ VALTRA Bellow seal globe valve - 200AL ■ PN 10-160 ■ DN 15-50 - Globe valves - VALTRA Bellow seal globe valve - 200 AL - PN 10-40 (63-160) - DN 65-400 (DN 65-200) Technical alterations reserved

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Industrial valves-13

Globe valves VALTRA Bellow seal globe valve Globe valves VALTRA Bellow seal globe valve Materials Component Body welded on with Bonnet Bonnet welded on with Bellow seal Gasket Bolt Hexagonal nut Stuffing box Gland flange Stem upper part Stem lower part Handwheel Technical alterations reserved

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Industrial valves-14

Globe valves High pressure globe valve HD 91 Range of application Admissible operating pressure [bar] at design temperature [°C] 1) Material 1) Operating temperature = design temperature minus temperature surcharge acc. to DIN regulations. 2) For temperatures > 570 °C, stem in 1.4923 and hightemperature-packing. Technical alterations reserved

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Industrial valves-15

Globe valves High pressure globe valve HD 91 Die-forged valve body Disc and stem in one piece Non-turning, rising stem Position indicator Throttle disc Yoke sleeve supported by needle bearings Possibility to add an actuator-flange Media Depending on the material the globe valves are suitable for water, gas, oil and other non aggressive media Fields of application High temperature steam and water, refining (catalytic reformers and hydrocrackers), petrochemical and chemical industries, power plants Pressure and temperature ratings ■ ■ Pressure rating up to 320 bar Temperature rating from -10 °C...

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