SkoFlo Industries SF15000NMFB, Инструкция по эксплуатации и обслуживанию, Страница: 5 / 14

OPERATION NOTES AND WARNINGS:
1. The SkoFlo valve has hard seats and is not designed to provide complete
"bubble-tight" shut off. Separate isolation valves should be used for
shutting off the flow.
Overtightening the handle could cause damage to
the stem section . If flow rate does not decrease when turning the handle in, see
"Trouble Shooting Improper Valve Performance".
2. The model SF15000NMF valve should not be operated at flow rates below
0.2 gpm. Lower rates can cause excessive pressure drops in the stem section.
3. Operating valve with continuous differential pressures above 3000 psi / 207 bar
may cause premature internal wear and must be avoided.
4. The SkoFlo Valve is designed for flow in one direction only. Do not flow
backwards through the SkoFlo valve. Some internal seals are designed for one
direction only and could possibly become dislodged. The valve will not control
flow in the reverse direction. Flow Control Industries recommends installation
of a check valve in the outlet line from the SkoFlo valve (see "Multi-Point System
Sample Schematic") to avoid reverse flow of process fluids into the chemical system.
5. When lifting the SkoFlo valve, lift from the base. Do not lift using the
handle as this can damage the handle.
MAINTENANCE:
1. Replacing Seals: When replacing valve seals, it is
recommended that the Piston Seal Installer Tool
(P/N SF15000N-T1) be used.
A. Remove SkoFlo valve from system.
B. Remove the adjustment handle retainer
lock bolt. Remove the retainer lock plate.
Unscrew the stem retainer and pull the rate
adjustment handle out of the body.
C. Pull out the needle trim using a hooked
probe or similar devise. Use care to avoid
damage to the internal surfaces of the
SkoFlo valve. (See Figure I).
Figure I
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