Valve Fittings & Adapters
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.
Patented Flow Wolf® Fitting
The Flow Wolf is available in many different thread sizes and types for all makes and models of valves and service conditions.
Sealweld® Flow Wolf® Internal Check Valves have been granted a Certificate of Authorization issued by ABSA.
Body Vent/Drain Fittings
Sealweld Body Vent/Drain Fittings have been granted a Certificate of Authorization issued by ABSA.
NH Style Fitting
Designed for use in top-entry plug valves, this fitting acts as a sealant injection fitting and a packing injector by simply screwing the fitting further into the valve.
Flow Wolf® Screw-On Fittings
This Flow Wolf® vented cap, single check, screw-on sealant injection fitting does not have a giant buttonhead connection. Most often used in wellhead gate valves or when using screw-on couplers.
Sealweld packing injectors are made tough to withstand many types of service conditions.
Body cavity fitting for a McEvoy valve. This fitting fits a McEvoy 7/8″ – 14 UNS screw-on coupler thread.
McEvoy-Style Screw-On Fitting
Body cavity fitting for a McEvoy valve. This fitting fits a standard 1″ – 14 UNS screw-on coupler thread.
McEvoy-Style Giant Buttonhead
Sealant fitting for a McEvoy valve. This fitting fits a standard giant buttonhead fitting and screw-on coupler thread.
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.