Flowserve Trunnball User Manual

injury and material damage. Read these instructions

thoroughly!

and comply with applicable safety directives when

working with hazardous or hot/cold medium.

is no risk of crush injuries. The risk is highest with

automatic valves.

unintentional manoeuvre - i.e to atmosphere.

ensuring that the line is free of pressure and any

content.

position to avoid trapping pressure and medium.

suitable for its intended use. This applies especially to

highly oxidising and corrosive medium. Observe also

the risk of erosion and explosion as well as decaying

medium. If in doubt, always request a written

recommendation from NAF AB.

All lifting must be made in

the valve itself and not in the

the valve and the actuator

All valves leaving our works are inspected and tested

the pipework. However, in view of damage that may have

valve delivered is correct in

terms of type, size, equipment, etc

the valve is to be installed are parallel and are correctly

valve must not be used for drawing together or aligning

as this will cause needless loads on

the valve and pipe which may lead to diffi cult damages

Wrong installation Correct installation

the pipework.

valve

Body EN 1.4408/CF8M

Body EN 1.4408/CF8M

Ball hard chrome EN 1.4408/CF8M/Hcr

Seat ring Alloy 6

Stem, assembly EN 1.4460

Circlip Spring steel

Backing ring PTFE

Upper lid EN 1.4436

Screw A4

Packing box PTFE/PTFE+25%C

Bushing PTFE+1.4401

Anti-friction washer EN 1.4436

Sealing ring PTFE

Screw A4-80

Nut A4

Screw A4-80

Key A4

Ball EN 1.4408/CF8M

Ball Alloy 6

Seatring EN 1.4436/PTFE+25%C

Bearing PTFE+1.4401

Trunnion plate EN 1.4470

Spring ASTM A316

Sealing ring PTFE+15%Graphite

O-ring FPM

Spring ASTM A316

Supporting ring Spring steel

Washer A4

Supporting ring PTFE

O-ring EPDM

Bushing PTFE reinforced carbon

Sliding washer PTFE reinforced carbon

3

Alloy 6

with o-rings type 898X9X-XXXX