API 6D Expanding Gate Valve
API 6D Expanding Gate Valve

The key feature of this valve is the extended gate, which provides a reliable bi-directional seal at full opening and closing. The expanding gate consists of two parts, which are brought into close contact with the valve seat by an internal mechanism that allows the gate to expand during opening or closing.
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 36”
Pressure Range
Class150 to 2500 | PN16 to PN420
Operating Temperature
-46℃ to 200℃ | -50.8℉ to 392℉
Operation
Handwheel | Bevel Gear | Pneumatic | Electric
Electro-hydraulic Linkage
Connection
RF | RTJ | BW
Design Standard
API 6D | ASME B16.34 | GB/T 19672
Features And Benefits
The two sides of the flat gate valve open seal is a balanced distribution of mechanical seals in the valve’s central axis, so the flat gate valve is suitable for natural gas, oil, and chemicals pipeline transportation.
The gate plate of the flat gate valve is divided into two parts, the two plates are put together with a precision beveled surface, when the valve is switched on and off, the beveled surface is used as a force to separate the gate or to close the gate to switch the valve on and off. We use corrosion-resistant and high-pressure-resistant materials to weld the seal of the gate plate.
Light Torque And Low Noise
Light torque, low noise and excellent sealing performance ensure safety and stability.
Special Treatment
The valve plate and seat are treated with special technology, which has good sealing, corrosion resistance and wear resistance, and can prolong the service life.
Propped Open Hard Seal
The hard seal open structure design greatly improves the sealing effect and is suitable for harsh working conditions.
Full Bore Design
Full bore structure, low flow resistance, low pressure loss and less scouring of the seal by the medium.
Suitable For Pipe Cleaning And Various Installation Methods
It can be used as pipeline cleaning valve, support any position installation, easy installation, no special requirements.
Your quest for reliable and efficient ball valves ends here with Reliable Ball Valve Suppliers. We are a team of dedicated ball valve manufacturers who take pride in our ability to deliver top-notch products. Our custom ball valves service ensures that every valve is made to your exact specifications, offering a perfect fit for your unique requirements.
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