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| (Specifications) |
| - Sizes from 1 in.(25.4 mm) to 6 in (150 mm) |
| - Water, Steam, Gas |
| - Pressures to 2500 psi(17 MPa) |
| - Fail Open, Fail Closed |
| - 48 VDC to 220 VAC |
| - IEEE 323, IEEE344, ASME III, ASME QME-1 |
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| (Specifications) |
| - Sizes from 3/8 in. to 6 in (150 mm) |
| - Water, Steam, Gas |
| - Pressures to 2500 psi(17 MPa) |
| - Fail Open, Fail Closed |
| - 48 VDC to 220 VAC |
| - IEEE 323, IEEE344, ASME III, ASME QME-1 |
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| (Operated By Proprietary Machined BELLOWS) |
| - Developed in 1960s |
| - Has never failed in thousands of reactor hours of service |
| - Simplifies Valve Design |
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| (Bi-Stable Action) |
| - Differential pressure mechanism not affected by change in state of process fluid |
| - No chatter when valve set on steam passes water |
| - Unaffected by Two-Phase Flow |
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| Design Installed in NPPs since 1980s |
| FLEX-C flexible disc technology |
| Bellville disc springs |
| ASME III, ASME QME-1 |
| Available Options |
| - Fully qualified operator |
| - Position Indication |
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| (Specifications) |
| - Size from 3/4" ×1" to 3" ×4" |
| - Water, Gas |
| - High pressures design available |
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| (Advantages) |
| - Unique inverted cone disc design |
| - Line seating provides tight shut-Off and setpoint repeatability |
| - Safety valves "pop" with no adjusting rings |
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| (Specifications) |
| - Size from 2in. to 6 in |
| - ANSI class 2500 |
| - Qualification to ANSI B16.41, GL 89-10 |
| - ABATE high pressure drop trim available |
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| (Piston Operated Specification) |
| - Sizes : 3/8" thru 2" |
| - Max lnlet Pressure : 3000 psig |
| - Adjustment : 20% of set |
| - Repeatability : ±1 psig |
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| (Diaphragm Operated Specification) |
| - Sizes : 3/8" thru 3" |
| - Max lnlet Pressure : 1000 psig |
| - Regulated pressure : 1/2 to 100 psig |
| - Adjustment : 20% of set |
| - Control Band : 1/4% |
| - Repeatability : ±0.25 psig |
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| (I/P Converter) |
| Solid-state electronic control |
| Tight shut-off(TSO) feature solves leakage problems by zero point drift |
| Fail-safe(unit pressure falls to zero on signal failure) |
| Field replaceable filter |
| Seismic qualification |
| 10CFR50-App A, ASME NQA-1, TSSA, CSA |
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| (3-ways Solenoid Valves) |
| IEEE 323 qualified |
| Specifically designed to support containment isolation and other continuously energized fail-safe |
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| (integration of all Target Rock nuclear products and services into a single product) |
| valves |
| System design |
| Fabrication |
| Testing |
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