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EBRO ARMATUREN Gebr. Bröer GmbH
WAFER TYPE BUTTERFLY VALVE Z 411-A

WAFER TYPE BUTTERFLY VALVE Z 411-A

Product catalog summary

Specifications:
The Z 411-A is a wafer type butterfly valve designed for PE/PP piping systems. It features a resilient seated, centrically mounted design with nominal diameters ranging from DA 50 to DA 630 and DN 40 to DN 600. It supports SDR11, SDR17, and SDR17.6 standards, with face-to-face dimensions conforming to EN 558 Series 20, ISO 5752 Series 20, and API 609 Table 1. The valve operates at a maximum pressure of 10 bar and a temperature range from -10°C to +160°C, depending on pressure, medium, and material.

Materials:
The valve body is made of nodular cast iron (GGG-40), with a stainless steel shaft (X14CrMoS17) and a disc made of stainless steel (G-X6CrNiMo18-10). The liner is made of EPDM, with seals and O-rings available in materials like NBR and FKM.

Torque and Kv-Values:
Initial breakaway torques are specified for liquids and lubricant media, with adjustments for powdery and dry gases/high viscous media. Kv-values are based on water flow at 5°C to 30°C with a ∆p of 1 bar, tested by Delfter Hydraulics Laboratories. The permissible flow velocity is 4.5 m/s for liquids and 70 m/s for gases.

Features:
The valve is maintenance-free, demountable, and recyclable. It enhances plant safety, features multiple shaft bearings, and has a replaceable liner. It is adaptable to various mounting positions and does not require spacers.

Applications:
Suitable for water management, agriculture and food industry, energy and environment, mobility and aviation, and drainage systems.

Dimensions and Pressure Ratings:
Detailed dimensions and pressure ratings are provided for various sizes, with specific data for SDR11 and SDR17/17.6 configurations. The valve supports a linear throttle function between 30° to 70° and is designed to avoid cavitation.

Catalog excerpts

WAFER TYPE BUTTERFLY VALVE Z 411-A TECHNICAL DATA Nominal diameter: EN 558 Series 20 ISO 5752 Series 20 API 609 Table 1 Flange accommodation: EN 1092 PN 10 others on request Top ﬂange: Tightness check: EN 12266 (leakage rate A) ISO 5208, category 3 Working standard: Temperature range: -10°C to +160°C (depending on pressure, medium and material) Operating pressure: max. 10 bar higher pressures on request Resilient seated, centrically mounted wafer type valve with inside diameter for PE/PP piping systems. FEATURES - Proven solution for the plastic piping industry - Tailor-made components according to standard - Clear identification, definite allocation and simple Assembly - Adapted to PE/PP pressure pipes and fittings (SDR11/SDR17/SDR17.6) - Unscrewing of standard welding neck collars and the the resulting weakening of the pressure stage is eliminated - Use of spacers not required - Increased plant safety - Any mounting position - Multiple shaft bearings - Replaceable liner - Maintenance-free - Demountable, recyclable by material GENERAL APPLICATIONS DA 280 SDR11 Z411-A DN250 Disc: 1.4408 Sha�: 1.4104 Liner: EPDM PS: 10 bar PN 10 - Water Management - Agriculture & Food Industry - Energy & Environment Type plate for clear identification of the Z411-A. - Mobility & Aviation - Drainage systems

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WAFER TYPE BUTTERFLY VALVE Z 411-A ØF Z 411-A with bare shaft end Subject to change withou

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WAFER TYPE BUTTERFLY VALVE Z 411-A MATERIAL SPECIFICATION AND PARTS LIST Surface quality Body Nodular Cast Iron Seat* NBR EPDM FKM Bearing bush Brass Polyamide Seal DIN 7603 Stainless Steel PTFE Copper Plug screw DIN 908 Stainless Steel Set screw DIN 915 Steel Stainless Steel Disc Stainless Steel Coating mirror finished Version for valves ≤ da400 SDR11 Material-No. 0.7040 8/9 Shaft Stainless Steel Nitrile butadiene rubber Ethylene propylene diene monomer rubber Fluor-Fluorocarbon rubber Position 11-14: Cover plate for valves ≥ da400 SDR17 O-Ring NBR Nitrile butadiene rubber FPM Fluorocarbon rubber...

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WAFER TYPE BUTTERFLY VALVE Z 411-A TORQUE - The values listed in the table are initial breakaway torques, taken with liquids and lubricant media. - Please regard these as approximate values, as the objective value depends on different factors like pressure, medium, rubber, quality, temperature ... etc. Adapted Disc Size Pressure Rating SDR 11 - Dry gases/high viscous media Md x 1,2 - Powdery (non-lubricant) media Md x 1,3 - Our engineers look forward to help you with exact values for your application. Kv-VALUES - The Kv-value [m³ per hour] is the ﬂow of water at a temperature of 5°C to 30°C (41°F...

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WAFER TYPE BUTTERFLY VALVE Z 411-A

WAFER TYPE BUTTERFLY VALVE Z 411-A

Catalog excerpts

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