High-Temperature 12″ ASME Class 300 Wedge Gate Valve

This product is a highly durable Wedge Gate Valve specifically engineered for severe high-temperature service up to $\text{500}^\circ\text{C}$ and higher. The valve body is constructed from $\text{ASTM A}217 \text{Grade C}5$ , a low-alloy chromium-molybdenum steel well-suited for high-pressure, high-temperature steam, oil, and gas applications.

📋 Key Specifications

Parameter	Detail / Standard
Specific Size/Class	$\text{12}''$ / $\text{ASME Class 300}$
Body Material	$\text{ASTM A}217 \text{C}5$ (Chromium-Molybdenum Alloy Steel)
Max Temperature	$\text{500}^\circ\text{C}$ (Rated to $\text{650}^\circ\text{C}$ by design range)
Operation	Handwheel (Manual)
Valve Type	Wedge Gate Valve
Size Range (General)	$\text{2}''$ to $\text{36}''$
Pressure Classes (General)	$\text{ASME CL} 150, 300, 600, 900, 1500, 2500$

⭐ Design and Compliance Standards

Standard Category	Applicable Codes
Valve Design	$\text{API} 600, \text{ASME B} 16.34$
Face-to-Face Length	$\text{ASME B} 16.10$
End Connections	Flange ( $\text{ASME B} 16.5/\text{B} 16.47$ ), Butt-Weld ( $\text{ASME B} 16.25$ )
Testing Standard	$\text{API} 598$ (100% tested before delivery)
Warranty	18 months after shipment, 12 months after installation

💡 High-Temperature Design Features

$\text{C}5$ Alloy Material: $\text{ASTM A}217 \text{C}5$ is a $5\%$ Chrome, $0.5\%$ Molybdenum steel alloy, offering exceptional tensile strength and creep resistance at elevated temperatures (above $\text{427}^\circ\text{C}$ / $\text{800}^\circ\text{F}$ ), making it ideal for the stated $\text{500}^\circ\text{C}$ service.
Bonnet Design: Features a Bolted Bonnet or Pressure Seal Bonnet (for higher pressures) to maintain joint integrity under extreme thermal cycling and pressure.
Wedge: Available with Flexible or Solid Wedges and a fully guided design to ensure smooth operation and tight closure.
Seat Rings: Supplied with Socket Welded or Replaceable Seat Rings.
Stem Design ( $\text{OS}\&\text{Y}$ ): Utilizes an Outside Screw and Yoke (Rising Stem) design to protect the stem threads from media and provide visual indication of the valve position.

🏭 Application and Function

This gate valve is primarily used for $\text{ON}/\text{OFF}$ isolation and is generally not recommended for throttling.

Primary Function: Provides minimum pressure drop when fully open and tight shut-off when fully closed.
Media Suitability: Essential for high-pressure, high-temperature lines in:
- Power Generation: Steam and boiler feed water.
- Refineries and Petrochemical Plants: Hot oil and vapor service.
Accessories: Available with accessories like gear operators, electric/pneumatic actuators, and bypass valves to facilitate operation and maintenance.

Given its $\text{C}5$ material, this valve is engineered for demanding power and process environments.