Product Bulletin HVP Valves

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HVP Series Control Valves

HVP Valves Description The HVP (high viscous polymer) Series control valve is used extensively by the polymer industry. These processes generally require the valves to operate at and maintain high temperatures to assure that the polymer fluid flows freely. The HVP Series can provide integral valve body passages through which a heat-transfer fluid is pumped to keep the valve and process fluid heated.
Forged and fabricated valve body styles are engineered to meet your process and piping requirements. Standard valve body and trim designs can be adapted to exactly match specifications. Models include: Design HVP-TS (figure 1) for throttling service; Design HVP-DS (figure 2) for diverting service (three-way valve); and Design HVP-SS for stop service (on/off).

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Features

Internal passages finished to 0.1 to 0.4 micro-meters (4 to 16 micro-inches) RMS to ensure easy flow of fluid.
Flow passage designed to prevent flow stagnation and polymer degradation.
Bellows seal is available.
All HVP Series control valves can be vacuum rated.
Integral valve body jacketing for efficient heat transfer and stabilized flow.

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Ordering Information

Note: Fisher does not assume responsibility for the selection, use, or maintenance of any product. Responsibility for proper selection, use, and maintenance of any Fisher product remains solely with the purchaser and end-user.

When ordering, specify:

Application

1. Type of application
2. Controlled fluid
3. Fluid viscosity of controlled fluid
4. Specific gravity of controlled fluid
5. Fluid temperature requirements
6. Heat transfer medium (vapor/liquid)
7. Inlet pressures

a. Minimum
b. Normal
c. Maximum 8. Pressure dropsa. Minimum flowing drop
b. Normal flow drop
c. Maximum flowing drop
d. Maximum at shutoff 9. Flow ratea. Minimum controlled flow
b. Normal flow
c. Maximum flow 10. Maximum permissible noise level, if critical
11. Shutoff classification required
12. Line/core size and schedule

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Specifications

Valve Body Sizes

1 through 10-inch, larger sizes on request

Flow Coefficient Cv

0.1 to 200

Inlet Pressure(1)

Consistent with Class 150 through 2500 ratings per ASME B16.34

Temperatures(1)

-18 to 427°C (0 to 800°F) as required by specific application

End Connections

■Buttweld ends (BWE) consistent with ASME B16.25 ■Socketweld ends (SWE) consistent with ASME B16.11 ■Flanged ends consistent with ASME B16.5

Transfer Fluid Connections

■1/2, ■3/4, or ■1-inch sizes with ■Buttweld ends (BWE) consistent with ASME B16.25 ■Socketweld ends (SWE) consistent with ASME B16.11 ■Flanged ends consistent with ASME B16.5

Shutoff Classification per ANSI/FCI 70-2 and IEC 60534-4

To Class V as required

Travel

25 through 102 mm (1 through 4-inch)

Yoke Boss and Stem Diameter

As required to mate with specified actuator

Construction Materials

Valve Body, Bonnet, and Flanges: 304/316 stainless steel
Packing: Graphite
Valve Plug and Valve Stem: 304/316 stainless steel (Alloy 6 overlays applied as required)

Dimensions

Depends on actuator requirements; contact your Fisher sales office

1. The pressure/temperature limits in this bulletin, and any applicable standard or code limitation, should not be exceeded.

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