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Small Expansion Joint Type Za Technical Data // Installation Instructions Technical Data Small Expansion Joint Type Za for welding in into steel pipe Construction characteristics Execution with weld ends, delivered in pretensioned condition. The main element of this small expansion joint is the multi-ply bellows made of stainless steel. The two weld ends for welding in are made of carbon steel St 52-3. The inner protecting sleeve is reinforced and hence also acting as a guide. The outer robust sleeve protects the expansion joint from mechanical and environmental influences. All connections are welded. Application field: for taking up axial movements in heating and industry water systems. Diameter: ½" – 2" For larger dimensions, axial expansion joints of type W are used Pressure: Size ½" – 1 ¼" PN 16 Size 1 ½" – 2" PN 10 For higher pressures, axial expansion joints of type W are used Materials: Bellows element: stainless steel 1.4571 (similar to AISI 316 Ti) Connecting weld ends: carbon steel St 52-3 Inner protecting sleeve: carbon steel St 35 Outer protecting sleeve: EN AW-6063 T6 Endurance: 5000 full load cycles at 25 mm stroke (1000 full load cycles at 45 mm stroke) Temperature resistance: up to 450°C 12-02 F-0001014 TL BOA AG Station-Ost 1 · CH-6023 Rothenburg · Switzerland Phone: +41 41 289 41 11 · Fax: +41 41 289 42 02 · info@boa.ch · www.boa.ch ./.

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Small Expansion Joint Type Za Technical Data / Installation Instructions Technical Data Type Za Dimension Pressure Total length max. DN ["] PN [bar] TL [mm] [mm] [mm] B [mm] C [mm] d [mm] D [mm] E [mm] ½" 16 250 25 45 190 30 16 23 ¾" 16 250 25 45 190 30 20 27 Stroke Stroke at 5000 at 1000 full full load load cycles cycles Length Diameter Ø Weight Spring rate* ±30% Effective area [kg] Cx [N/25mm] [cm ] [-] 35 0.6 110 4.5 F-0000028 43 0.9 120 7.5 F-0000030 2 BOA item # 1" 16 250 25 45 190 30 25 34 48 1.0 130 9.5 F-0000032 1 ¼" 16 250 25 45 190 30 35 42 62 1.5 140 18.0 F-0000034 1 ½" 10 260 25...

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