Related Manuals for Jafar 4495
Summary of Contents for Jafar 4495
- Page 1 OPERATING MANUAL Concentric butterfly valves P/N 4495 / 4496 / 4497 OPERATING MANUAL 07-2021 1/11...
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Page 2: Table Of Contents
CONTENTS INTENDED USE ............................3 TECHNICAL DESCRIPTION ........................3 PRODUCT IDENTIFICATION MARKING .................... 6 STORAGE & TRANSPORT ........................7 INSTALLATION ............................7 OPERATION .............................. 10 SAFETY ..............................10 WARRANTY .............................. 11 OPERATING MANUAL 07-2021 2/11... -
Page 3: Intended Use
(drive unit). The selected drive unit must ensure a stable closure actuation angle within 0° - 90° and the correct operating torque value, see Table 1 or 2. P/N 4495 lug valves, P/N 4497 wafer valves, and P/N 4496 flanged valves are for installation between the opposing flanged ends of piping. P/N 4495 lug valves can also be installed as termination of piping by using the valve body threaded holes. - Page 4 Closing/opening torque value on valve shaft required for (Nm), [mm] 5211 gas media* 4497 Δp 1.0 [MPa] 1.6 [MPa] 1,313 1,594 1,719 2,344 3,469 4,000 5,000 5,781 9,219 11,719 11,719 14,063 13,281 17,188 1000 15,625 19,531 1200 17,188 22,031 Table 2. Operating torque values for gas media * Applicable to networks which conduct chemically inert gases (e.g.
- Page 5 P/N 4496 concentric butterfly flange valves feature a non-replaceable elastomer insert (end seal). The end seal comprises an aluminium ring on which a rubber sealing ring is mounted. The lug valves (P/N 4495) and the wafer valves (4497) feature either of the two end seal version: ...
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Page 6: Product Identification Marking
3. PRODUCT IDENTIFICATION MARKING The valve marking meets the following standards: EN 19 (Industrial valves. Marking of metallic valves), EN 1074- 1 (Valves for water supply. Fitness for purpose requirements and appropriate verification tests. Part 1: General requirements). The permanent identification markings are on the front and back walls of the body chamber and on the cylindrical closure plate. -
Page 7: Storage & Transport
The listed products are suitable for joining with the flanged ends of pipelines with the size equal to that of the valve flanges. P/N 4495 and 4497 do not require additional gaskets between the piping valve flanges, while P/N 4496 requires additional gaskets between the flanges. - Page 8 Horizontal piping – Horizontal piping – horizontal Vertical piping vertical orientation orientation Fig. 2. Orientation of the valve closure pivot shaft relative to the piping plane shown for P/N 4497 DN100 Fig. 3. Recommended installation method shown for flange-to-flange valves The optimum installation orientation of concentric butterfly valves is to have the closure panel axis vertical with the closing movement of the closure panel bottom opposite to the medium flow (Fig.
- Page 9 Before attempting to install the valve, remove the main bore plugs, check the inner surfaces of the valve and thoroughly flush with water, if necessary. Before installing the valve between the pipeline flanges, first remove all shipping preservation from the surfaces, thoroughly clean the flange faces, install the properly selected seals (this step applies to P/N 4496 only) and tighten the piping and valve flanges together with sufficiently long and properly sized bolts or threaded bars.
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Page 10: Operation
Operating Manual may cause death, severe bodily injury or substantial property damage. Fabryka Armatur Jafar S.A. shall not be liable for any accidents or emergencies related to incorrect installation or operation of the product. Note that the valve installation could be pressurized or contain various type of stray gas or aggressive liquids. -
Page 11: Warranty
Specification Sheet is covered by a commercial warranty from the manufacturer. The warranty terms, conditions and period are specified in the Warranty Certificate available from www.jafar.com.pl. The manufacturer may provide this product with custom materials and modifications on order. The final selection...