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GYL20300 series pressure relief type double spool regulating valve

Product Information:

The L-20300 features a cage-guided structure. The cage is used to compress the seat and serve as a trim guide, making disassembly convenient. Besides, it adopts a flow-off design, when the valve is adjusted or cut off, the small trim is opened to regulate flow or relieve pressure; When it moves to a certain position, it drives the big trim to adjust or open the valve. The inner part uses a single-seat double-trim structure, and the tight fit of the double-trim structure of the valve seat and its mating surface ensures low leakage. It is suitable for controlling various gases and fluids with high differential pressure and remedying the limitation of cage-guided double-seat valve leakage and cage-guided single-seat valve high-temperature non-resistance problems.

BEIER

Product Catalogue
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Control valve parameter description:

Trim: Unbalance Trim、Cage Retainer、Quick Tear Down、Double Trim Pressure Relief
Body:  Straight Through、Angle、Z type
Bonnet: Standard、Steam、Cryogenic
Temperature Range:  -196°C~570°C
Stem Sealing: Standard、Graphite、Bellows
Leakage: CLASS V (Standard, Metal Seat)、CLASS VI (Optional, Soft Seat)
Flow Characteristic: Equal%、Linear
Pipe Line Connection: Flange、Welding
Range Ability: 50:1