Onicon F-5100 Inline Bedienungsanleitung PDF herunterladen (Seite 14)

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F-5100 Inline Thermal Mass Flow Meter Manual 05/15 - 0686-11 / 18332 Page 14

Bolt Tightening Sequence

Installation Instructions

1. Thoroughly clean all ange surfaces removing all traces of any old gasket material

or any adhesive residue.

2. Inspect all ange surfaces for warping, pitting or other surface imperfections that

may prevent a good seal.

3. Use new bolts, nuts and hardened washers. Prior to installation,

lubricate the bolt threads, nuts, washer faces and the underside of each bolt head

with lubricant (Fel Pro C5A or equivalent). This lubricant is necessary to ensure

uniform stress distribution on the sealing surface. Use care not to get any

lubricant on the gasket material.

4. Center the new gasket on the ange face. Do not allow the gaskets to protrude into

the ow stream.

5. Use the torque specications provided by the gasket manufacturer to determine

the proper torque setting.

6. Using a torque wrench, tighten the bolts in at least three stages (30%, 60% &

100%) using a repeating pattern sequence of 12 o’clock to 6 o’clock to 3 o’clock to

9 o’clock around the ange as shown in the diagrams below.

7. Leak test all connections.

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Onicon F-5100 Inline Bedienungsanleitung Seite 14