Globe Valves

Y-Globe Stop, Check and Stop Check Valves
Y-pattern globe valves provide the maximum Cv possible in a globe valve. All Y-pattern valves are rodable. Available in 1/2″ to 4″; ASME pressure classes through 4500; SA105, F22, F91, F316, F347, Inconel™, Monel™ and other materials.

T-Pattern Stop, Check and Stop Check Valves
T-pattern, vertical stem globe valves provide easily accessible stems and extentions for remote manual operation. Available in 1/2″ to 3″; ASME pressure classes through 4095; A105, F22, F91, F316, F347, Inconel™, Monel™ and other materials.

Angle Stop, Check and Stop Check Valves
Angle pattern globe valves economically eliminate the need for separate valves and 90° joints. They also reduce the number of installation welds. Available in 1/2″ to 4″; ASME pressure classes through 4095; A105, F22, F91, F316, F347, Inconel™, Monel™ and other materials.

Gate Valves

 Solid Wedge Gate Valve

Due to its simplicity and durability, the solid wedge gate valve is the most common in small diameter applications. This valve may be installed in any position and is suitable for handling nearly any fluid type. This valve provides no compensation for adjusting seat alignment due to thermal expansion or pressure loads. These valves are most common in low-to-moderate pressure and temperature applications.  

Flexible Wedge Gate Valve

The flexible wedge gate valve improves upon the solid wedge valve by using a cut around the perimeter of the wedge to permit the wedge to flex or adjust for changes in seat alignment caused by thermal expansion, pressure loads, or wear.  They are used in applications with higher temperature and pressure requirements to protect against thermal binding.

Split Wedge or Parallel Disc Gate Valve

In this type of gate valve, the wedge is either split into two segments or is comprised of two parallel discs, held together by a spring-loaded mechanism. This design allows for bidirectional sealing capability.  The greater freedom of movement between the segments or discs prevents thermal binding. This type of valve is best used in applications above 800 degrees Fahrenheit.

Metal Seated Ball Valves

Zero Body Leakage:
The body/bonnet joint is not subject to pipeline stresses. There is no in-line body bolting to loosen and fatigue, so the body remains leak-free.

Zero Seat Leakage:
All Conval ball valves are capable of meeting zero bubbles for four minutes at 50 psi and 1,000 psi Nitrogen at final factory seat test; after field in-line welding; following post-weld heat treat; during and after process thermal excursions. Modular internals isolate critical seal surfaces from thermal effects.

Zero Stem Seal Leakage:
Conval’s exclusive Integral Gland Wrench concentrically loads the stem packing without tools, eliminating stem leaks and extending packing life. Live loading is available as an option.

Robust Stem-Ball Engagement:
Reliable, accurate ball alignment is achieved due to the robust engagement between the one-piece stem and the ball.

Check Valves

Pressure Seal Bonnet

The simple and effective pressure seal bonnet provides ready access for servicing with no welds to cut or seal rings or gaskets to replace. The body-to-bonnet joint integrity is maintained through countless thermal cycles.

Only Two Moving Parts

The valve is comprised of five assemblies, with the piston and spring being the only moving parts. The piston utilizes two guide rings, and the spring is Inconel X for smooth operation in any position.

Versatility

Clampseal valves are tailored to the exact requirements of our customers. No other premium forged valve offers so many options. Conval provides multiple body styles in various pressure classes and three standard materials. Other materials are available to meet customer needs. The easy interchangeability of parts means that an entire plant installation can be supported with a very low parts inventory.