API 6D Slab Gate Valve
API 6D Slab Gate Valve
Slab gate valve is a kind of sliding valve with parallel gates as closing parts. The closing member can be a single gate or a double gate with a spreading mechanism. The compression force of the gate to the seat is controlled by the medium pressure acting on the floating gate or the floating seat.
Technical Specifications
Materials:
Body:
Cast Steel：
ASTM A216 WCB, WCC | ASTM A352 Gr. LC3, LCB | ASTM A217 gr.B, C5, C12, WC6, WC9, WC12;
Stainless Steel:
ASTM A351 CF8, CF3, CF8M, CF3M, CK20, CG8M, A351 CK3MCuN etc;
Duplex:
A890 Gr.4A, Gr. 6A （SAF2205, 2507 etc）;
Nickel Alloy:
Monel 400 | Inconel 600, 625 | Hastelloy C27, C22, B2 | Incoloy 800/800HT, 825 etc.
Ball:
ASTM A105 w/ENP | ASTM A350 Gr. LF2 w/ENP | ASTM A182 Gr. F316 | ASTM A182 Gr. F316 w/ENP
Stainless Steel | Duplex SS | Nickel Alloy etc.
Seat:
RPTFE | Nylon | Davilon | PEEK | Tek-Fil® | TFM
Stem:
ASTM A479 Type 410 | 17-4PH | XM-19 | ASTM A182 F316 | Stainless Steel | Duplex SS | Nickel Alloy etc.
Caliber Range
2″ to 60”
Pressure Range
Class150 to 2500 | PN16 to PN420
Operating Temperature
-46℃ to 200℃ | -50.8℉ to 392℉
Operation
Handwheel | Loose Gear | Electric Head
Pneumatic Head | Electro-hydraulic Head
Connection
RF | RTJ | BW
Temperature Range
-60℃ to 200℃ | -76℉ to 392℉
Design Standard
API 6D | ASME B16.34 | GB/T 19672
Temperature Range
-60℃ to 200℃ | -76℉ to 392℉
Features And Benefits
The two side seals of the flat gate valve are mechanical seals with balanced distribution on the center axis of the valve, so the flat gate valve is suitable for the pipeline transportation of natural gas, petroleum, and chemicals.
In terms of design structure, the flat gate valve is divided into those with and without pilot holes.
Multi-layer Seals
The gate and seal seat are specially treated to provide a multi-layer seal that resists corrosion, penetration and friction.
Soft And Hard Double Sealing
The valve seat adopts soft and hard double sealing to ensure the stability of sealing, which is more suitable for complex working conditions.
Full Bore Design
Full bore design, small pressure loss, reduce the medium on the sealing surface of the scouring, prolong the service life.
Suitable For Pipeline Cleaning
Flat gate valves are suitable for pipe cleaning applications, providing a smooth flow path.
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