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Safety valve zARMAK Fig.240

Safety valve zARMAK Fig.240
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Safety valve zARMAK Fig.240

Product catalog summary

Overview

This document details the technical specifications, materials, dimensions, capacity data, and application guidelines for the ZETKAMA proportional safety valve type 240. Designed according to PN EN 1092 and PN EN ISO 4126-1 standards, these valves are suitable for various media including water, air, steam, and aggressive fluids. The valves emphasize high tightness and quiet operation, with flanged ends and angle construction.

Application and Features

  • Suitable for industrial fluids, heating, power engineering, drinking water, steam, air, and aggressive media compatible with valve materials.
  • Valve variants include standard and soft sealing discs (EPDM, NBR) for enhanced closure tightness and protection against limescale and mechanical dirt.
  • Nominal pressure ratings up to 40 bar and temperature ranges up to 450°C depending on body material.
  • Flanged ends with a 240° angle design.

Materials

  • Body materials vary by nominal pressure: Grey cast iron (EN-GJL-250) for PN16, cast steel (GP240GH), acid resistant steel (GX5CrNi19-10), and stainless steels (X6CrNiTi18-10, X17CrNi16-2 for marine types) for PN40.
  • Sealing materials include EPDM (-10 to +120°C) and NBR (0 to +90°C) for soft sealing discs; metal/metal sealing also available.
  • Other components such as spindle, bonnet, lifting bell, and springs are made from stainless and alloy steels selected for temperature and pressure conditions.

Dimensions and Pressure Ratings

Valve dimensions cover nominal diameters (DN) from 15 to 200 mm with flange dimensions compliant with PN EN 1092. Pressure-temperature ratings depend on body material and nominal pressure, with steam boiler applications limited to max 10 bar and 200°C.

Capacity Tables

Capacity data is provided for air and water at 20°C, calculated at 0.1 bar overpressure (10%). Tables list flow capacities in kg/h across DN sizes and set pressures, facilitating selection based on application needs. Separate tables cover water and saturated steam capacities, showing increasing capacity with valve size and pressure.

Valve Types and Variants

  • Type 240 A: Grey cast iron body, DN 15-200 mm, PN16, Tmax 300°C; includes normal, gas tight, and marine types with metal/metal or elastomer seals.
  • Type 240 F: Cast steel GP240GH body, DN 20-200 mm, PN40, Tmax up to 450°C; similar variants as type A.
  • Type 240 R: Acid resistant steel GX5CrNi19-10 body, DN 20-125 mm, PN40, Tmax up to 400°C; includes marine and gas tight types.

Installation and Operational Guidelines

  • Valves should be installed vertically.
  • For liquid blow-out installations, inclination and drainholes are recommended to prevent condensate accumulation; special drainholes available on request.

Sensor Specifications

  • Working ranges: 3 mm (M8), 6 mm (M12), 10 mm (M18).
  • Supply voltage: 10–30 V DC.
  • Protection ratings: IP67 (M8), IP68 (M12 and M18).
  • Operating temperature: standard -25 to +70°C; up to +230°C available on special order.
  • Standard cable length: 2000 mm.

Ordering Information

Ordering codes specify valve type, nominal diameter, nominal pressure, body material, and sealing type. Example: 240 040 E 01-1 denotes a normal type valve for gases and vapors with metal/metal sealing, PN40, DN40, cast steel body.

Critical Parameters and Recommendations

  • Capacity calculations assume 0.1 bar (10%) overpressure.
  • Valve type and sealing material selection must consider operating temperature and medium.
  • Nominal pressure and body material must align with application requirements.
  • For temperatures above 350°C, valve execution with insert is recommended.
  • Springs with wire diameter up to 6 mm use patented wire rated for max 250°C.
  • Marine types use spindle material X17CrNi16-2.

Additional Notes

  • Data is subject to change without notice.
  • Contact ZETKAMA Sp. z o.o. for inquiries and orders.
  • Valves feature flanged ends and angle form construction.
See more

Catalog excerpts

Safety valve zARMAK Fig.240-1

figure ends form flanged angle PROPORTIONAL SAFETY VALVE zARMAK body material nominal pressure nominal diameter A grey cast iron R acid resistant steel for type with insert FEATURES flanges dimention according to PN EN 1092 valves made according to PN EN ISO 4126-1 wide range of parameters and DN high tightness For valve with soft sealing: quiet work of valve raised tightness of closure protection of disc sealing surface against limescale settling if the factor is industrial and drinking water as well as against any small mechanical dirt water (including drinking water) heating power engineering air steam neutral fluids aggressive media (suitable to resistance of materials used to building of valves) Data given can be changed without notice. ZETKAMA Sp. z o.o. ul. 3 Maja 12 PL 57-410 Ścinawka Średnia e-mail [email protected] www.zetkama.com 1

 Open the catalog to page 1
Safety valve zARMAK Fig.240-2

figure ends form body material with soft sealing disc lifting bell temperature range * for marine type (05, 07) spindle made of: X17CrNi16-2 **spring with wire diameter up to Φ 6 of patent wire, max. working temperature is 250 oC o *** for steam boilers valid are restrictions according to WUDT-UC-WO-M - it is 10 bar and 200 C Data given can be changed without notice. ZETKAMA Sp. z o.o. ul. 3 Maja 12 PL 57-410 Ścinawka Średnia e-mail [email protected] www.zetkama.com 2/16

 Open the catalog to page 2
Safety valve zARMAK Fig.240-3

figure ends form body material standard type with soft sealing disc body seat lifting bell temperature range *for marine type (05,07) spindle made of: X17CrNi16-2 * *spring with wire diameter up to Φ 6 of patent wire, max. working temperature is 250 oC . Data given can be changed without notice. ZETKAMA Sp. z o.o. ul. 3 Maja 12 PL 57-410 Ścinawka Średnia e-mail [email protected] www.zetkama.com 3/16

 Open the catalog to page 3
Safety valve zARMAK Fig.240-4

figure ends form flanged angle with soft sealing dics 01-2(3), 02-2(3), 05-2(3), 07-2(3) * for steam boilers valid are restrictions according to WUDT-UC-WO-M - it is 10 bar and 200 C Data given can be changed without notice. ZETKAMA Sp. z o.o. ul. 3 Maja 12 PL 57-410 Ścinawka Średnia e-mail [email protected] www.zetkama.com 4/16

 Open the catalog to page 4
Safety valve zARMAK Fig.240-5

figure ends form flanged angle F with soft sealing dics with insert Execution with insert DN 150x150 and DN 200x200, after coordination with manufacturer. For temperatures above 350oC the execution with insert is recommended Execution with insert DN 150x150 and DN 200x200, after coordination with manufacturer. For temperatures above 350oC the execution with insert is recommended Data given can be changed without notice. ZETKAMA Sp. z o.o. ul. 3 Maja 12 PL 57-410 Ścinawka Średnia e-mail [email protected] www.zetkama.com 5/16

 Open the catalog to page 5
Safety valve zARMAK Fig.240-6

figure ends form DISCHARGE COEFFICIENTS NOTES If condensate accumulates, the blow-outinstallation should be drainholed in the lowest point. The drainhole in valve's body is made only on special request of the client. In case of liquids, the blow-out installation should be inclined The valve should be mounted in vertical position. BASIC DATA OF SENSOR Working range [ mm ]: 3 (M8); 6 (M12); 10 (M18) Supply voltage [ V ]: 10 ÷ 30 DC Protection grade: IP67 (M8); IP68 (M12 and M18) Working temperature: -25 ÷ +70oC Standard length of cable [mm]: 2000 The other executions of sensor for special order...

 Open the catalog to page 6
Safety valve zARMAK Fig.240-7

PRESSURE-TEMPERATURE RATINGS Allowed working conditions range Allowed working conditions range Allowed working conditions range Data given can be changed without notice. e-mail [email protected]

 Open the catalog to page 7
Safety valve zARMAK Fig.240-8

figure ends form flanged angle Capacity for air at 20 C in kg/h for proportional safety valve according to EN ISO 4126 DN (inlet x outlet) for type 240 (ex. Si 2302, 2501, 2502) Set pressure in bar(gauge) Capacity calculated at overpressure 0,1 bar or 10% Data given can be changed without notice. ZETKAMA Sp. z o.o. ul. 3 Maja 12 PL 57-410 Ścinawka Średnia e-mail [email protected] www.zetkama.com 8/16

 Open the catalog to page 8
Safety valve zARMAK Fig.240-9

figure ends form flanged angle Capacity for air at 20 C in kg/h for proportional safety valve according to EN ISO 4126 DN (inlet x outlet) for type 240 (ex. Si 2302, 2501, 2502) Set pressure in bar(gauge) Capacity calculated at overpressure 0,1 bar or 10% Data given can be changed without notice. ZETKAMA Sp. z o.o. ul. 3 Maja 12 PL 57-410 Ścinawka Średnia e-mail [email protected] www.zetkama.com 9/16

 Open the catalog to page 9
Safety valve zARMAK Fig.240-10

figure ends form flanged angle CAPACITY TABLE FOR WATER o Capacity for water at 20 C in kg/h for proportional safety valve according to EN ISO 4126 DN (inlet x outlet) for type 240 (ex. Si 2501, 2502) Set pressure in bar(gauge) Capacity calculated at overpressure 0,1 bar or 10% Data given can be changed without notice. ZETKAMA Sp. z o.o. ul. 3 Maja 12 PL 57-410 Ścinawka Średnia e-mail [email protected] www.zetkama.com 10/16

 Open the catalog to page 10
Safety valve zARMAK Fig.240-11

figure ends form flanged angle CAPACITY TABLE FOR WATER o Capacity for water at 20 C in kg/h for proportional safety valve according to EN ISO 4126 DN (inlet x outlet) for type 240 (ex. Si 2501, 2502) Set pressure in bar(gauge) Capacity calculated at overpressure 0,1 bar or 10% Data given can be changed without notice. ZETKAMA Sp. z o.o. ul. 3 Maja 12 PL 57-410 Ścinawka Średnia e-mail [email protected] www.zetkama.com 11/16

 Open the catalog to page 11
Safety valve zARMAK Fig.240-12

figure ends form flanged angle CAPACITY TABLE FOR SATURATED STEAM Capacity for saturated steam in kg/h for proportional safety valve according to EN ISO 4126 DN (inlet x outlet) for type 240 (ex. Si 2302, 2501, 2502) Set pressure in bar(gauge) Capacity calculated at overpressure 0,1 bar or 10% Data given can be changed without notice. ZETKAMA Sp. z o.o. ul. 3 Maja 12 PL 57-410 Ścinawka Średnia e-mail [email protected] www.zetkama.com 12/16

 Open the catalog to page 12
Safety valve zARMAK Fig.240-13

figure ends form flanged angle CAPACITY TABLE FOR SATURATED STEAM Capacity for saturated steam in kg/h for proportional safety valve according to EN ISO 4126 DN (inlet x outlet) for type 240 (ex. Si 2302, 2501, 2502) Set pressure in bar(gauge) Capacity calculated at overpressure 0,1 bar or 10% Data given can be changed without notice. ZETKAMA Sp. z o.o. ul. 3 Maja 12 PL 57-410 Ścinawka Średnia e-mail [email protected] www.zetkama.com 13/16

 Open the catalog to page 13

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