Sealweld Corporation develops products to extend the in-service life of large diameter valves in high-pressure pipeline applications. Their valve sealants achieve a reliable temporary seal in older worn valves. Valve technicians’ ability to inject an emergency sealant compound is determined by the quality and capability of the fittings installed on the valve. Sealweld invests in research to understand fitting failures and designs new valve fittings capable of meeting the demands of the energy industry. They recommend using AISI 316 Stainless Steel as standard material for valve fittings for increased mechanical strength and corrosion resistance.

Many of the world’s oldest and largest oil & gas fields are now seeing new expansions as new technologies are applied to increase production. This is in response to increased energy prices, and fields that were once considered marginal are now being revitalized.

Sealweld Corporation’s Contribution

Sealweld Corporation has been focused on developing products, technologies, and procedures to extend the in-service life of large diameter valves in high-pressure pipeline applications for over 40 years. These technologies are now being applied to valves on wellheads, gathering systems, processing facilities, and gas distribution systems with equal success.

The Importance of Valve Fittings

Sealweld valve sealants are designed to achieve a reliable temporary seal in older worn valves. A valve technician’s ability to inject an emergency sealant compound is determined by the quality and capability of the fittings installed on the valve.

Cheap and dangerous fitting designs installed by valve manufacturers for manufacturing cheaper, less expensive valves have been discovered to be causing valve failures. This realization has led to the development of new valve fittings capable of meeting or exceeding the demands of our rapidly expanding energy industry.

Valve Technician Safety and AISI 316 Stainless Steel Fittings

Valve Technician safety is Sealweld’s primary objective, and the company recommends using AISI 316 Stainless Steel as standard material for valve fittings for increased mechanical strength and corrosion resistance.

Sealant Fitting Options

The most economical sealant fitting is the standard giant buttonhead fitting, which is ideal for small diameter ball valves in conventional oil service. Larger sizes come with a double-ball check, and the smallest size has a single-ball check. The patented Flow Wolf design is the strongest and most durable sealant fitting on the market.

The Flow Wolf: A Virtually Indestructible Fitting

The Flow Wolf was invented by Sealweld’s founder, W.J. “Bill” Chisholm, on a job where a super heavy sealant compound needed to be injected into severely leaking valves. The Flow Wolf was designed to be the strongest and most durable sealant fitting on the market, combining field-tested technology with high-quality materials to create a virtually indestructible fitting.

Sealweld Packing Injectors

Sealweld packing injectors are made tough to withstand many types of service conditions. This two-part fitting assembly allows for easy maintenance on valve stem seals and expansion joints.

The Importance of Internal Check Valves

Before commissioning a new valve, it is important to ensure that it contains a top-quality internal check valve. Sealweld Flow Wolf Internal Check Valves are manufactured from stainless steel and include the patented Flow Wolf threaded-cage to ensure that the ball check is not accidentally injected into the valve when pumping heavy valve sealant. A working check valve is critical in ensuring valves can be serviced under pressure safely.