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HIGH PERFORMANCE BUTTERFLY VALVE
FIGURE HPA
16
A3. Technical data
Seat
material
Max operating
temperature
Properties Application
PTFE
-58°F (-50°C) –
400°F (204°C)
1. Outstanding chemical resistance.
2. Good Mechanical properties.
Resistance to most of the
chemicals and solvents.
RPTFE
-58°F (-50°C) –
428°F (220°C)
1. Excellent mechanical properties.
2. Excellent chemical resistance.
3. Good temperature and pressurecapabilities.
4. Excellent abrasion resistant.
Resistance to most of the
chemicals and solvents.
ULTR A
-58°F (-50°C) –
500°F (260°C)
1. Excellent mechanical properties.
2. Excellent chemical resistance.
3. Good temperature and pressurecapabilities.
4. Excellent abrasion resistant.
Resistance to most of the
chemicals and solvents.
Table 4 Seat temperature range and general chemical resistance
CAUTION:
FNW does not assume responsibility for any liabilities/damages arriving out of erroneous application of its
valves or imprudent operations carried out by inexperienced operators that do not comply with this manual or
instructions provided by FNW. The valves shall be appropriately used for the purpose they are built for and their
intended applications. Use of standard valves for special applications is not recommended unless it has been
communicated and agreed to by FNW. Valves shall be operated and maintained strictly in accordance with the
procedures. Operation or maintenance outside of these procedures constitutes abuse of the product and voids
all warranty and claims.
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