GVK 2000는 밸브 작동 중 디스크를 열고 닫을 때 시트 전체 표면에 ZERO 간섭으로 인해 이전보다 토크가 줄어듭니다. 또한, 시트 누수 현상 없이 완벽한 시트 실링이 잘 이루어집니다. 따라서 작동시 마찰이 없어 내구성이 극대화됩니다.
구분 | Aº (간섭 각도) | 특징 |
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GVK 2000Series | 마찰 제로. |
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Existing Valve | 마찰이 발생하는 위치 0°~25° 정도. |
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Contact | ||||
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Open Angle | 25° | 15° | 10° | 5° |
Description | GVK 2000 Double Offset | Other Company Double Offset |
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Offsets | Double offset | Double offset |
Stem / Disc Operating | 90 Deg Rotaing | 90Deg Rotaing |
Seat material | Solid metal to metal, Metal to laminated seat Metal to soft seat also available | Impossible Solid metal to metal Impossible Metal to laminated seat |
Impacts(seat damage) the on seat against Flow | NO impacts | Impacts |
Friction when seating on & off | Zero ftiction - by Optimizing Offset Design | Friction occur at deg of 0°~25° |
Seat Shut off at full pressure rate for non-preferred direction | No seat Leakage under metal to metal seat | Hard to reach metal to metal |
Bi-directional tight shut off | Available | Hard to achieve |
Seat Surface Hard facing Treatment available | Overlay wedling [Body seat & Disc seat] TCC, CCC by HVOF | Hard to achieve |
Parts Repair
Disc & seat replacement |
Easy & Simple to replace it on site | Easy & Simple to replace it on site |
Actuator applicable | Pneumatic, Electric & Hydraulic with Quarter turn only | Pneumatic, Electric & Hydraulic with Quarter turn only |
Severe Service application (wear & Tear, erosion) | Suitable with intact metal seat face, | Difficult due to non solid metalic seat |
Severe Service application (corrosion) | Suitable with TCC, CCC on the seats | Difficult due to non solid metalic seat |
Alternatively replaceable with Ball, Gate, Glove valve | Yes for metal seat | Few |
Fire safe | Yes with metal to metal seat design | Yes with metal to metal & soft seat design |
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