Flat Gate Valve Manufacturers – Double Parallel Gate Valve,WCB,CF8,CF3,CF8M,CF3M,LCB,LCC,LC1,PSB,BW, Pressure sealing, Butt welded,Dual plate – UNIQUE
Flat Gate Valve Manufacturers – Double Parallel Gate Valve,WCB,CF8,CF3,CF8M,CF3M,LCB,LCC,LC1,PSB,BW, Pressure sealing, Butt welded,Dual plate – UNIQUE Detail:
Technical parameters and characteristics
| Product | Parallel Disc Gate Valve | |
| Nominal diameter | 2″ - 48″ | DN50 - DN1200 |
| Design temp. | -196℃ - 593℃ | |
| Design pressure | class 150 - 1500 | PN16 - PN250 |
| Material | A216 WCB, WCC; A217 WC6, WC9, C5, C12A; A352 LCB, LCC; A351 CF8, CF8M, CF3M, CF8C, CN3MN, CK3MCUN, CN7M; A890 4A(CD3MN), 5A(CE3MN), 6A(CD3MWCuN); ASTM B 148 C95800, C95500 |
|
| Design standard | API 6D | |
| Face to Face | ASME B16.10 | EN558 series |
| Connection end | RF, RTJ, BW | EN1092 series |
| Test standard | API 598, ISO 5208 | EN12266-1 |
| Operation | Hand wheel, bevel gear, electric-AUMA, Rotork, pneumatic | |
| Application | Power station, petroleum, tap water engineering, chemical engineering | |
| Feature 1 | Single Disc | |
| Feature 2 | Double Disc | |
| Feature 3 | SOFT seal: fire safe, double sleeve sealed, double block & bleed, self cavity relief, emergency sealant injection, diversion hole design. | |
| Feature 4 | Metal seal: double sleeve sealed, hard seat seal, double block & bleed, self cavity relief, diversion hole design. | |
PRODUCTION RANGE FEATURES
Slab Gate Valves are available in sizes and pressure ratings as follows:
•Class 150# from 2″ through 64″
•Class 300# from 2″ through 64″
•Class 600# from 2″ through 64″
•Class 900# from 2″ through 48″
•Class 1500# from 2″ through 42″
•Class 2500# from 2″ through 24″
APPLICABLE STANDARDS
Slab Gate valves comply with API 6D / API 6D SS and all relevant international codes:
•ASME B16.34
•ASME B16.25
•ASME B16.47
•Nace MR01.75
•ASME VIII Div. 1
Materials of parts
Body and Bonnet: WCB/LCB/CF8M/CF8/CF3M/CF3/WC6/WC9/CD3MN
Disc:A105+ENP/LF2+ENP/F304/F316/F304L/F316L/F51
Seat:A105+ENP/LF2+ENP/F304/F316/F304L/F316L/F51
Stem: F6a/F304/F316/F304L/F316L/F51
UNIQUE Slab Gate Valve also named “Through Conduit Gate Valve” are manufactured and tested in accordance with the API6D standard.Slab Gate Valves are manufactured with a full bore port, rising stem OS&Y and with floating seats and gate, pressure energized, for a bubble tight shut off upstream and downstream under both low and high differential pressure. Double block and bleed capability and automatic relief of excess body pressure are a standard feature of this seat design. The smooth, continuous bore minimizes turbulence within the valve and when in the open position it produces a pressure drop equivalent to a portion of pipe of the same length and diameter. The seat faces are outside the flow stream and therefore protected from the erosive action of the flow. Pigs and scrapers can be run through the valve without damage
Product detail pictures:
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