Arsen Externally Pressurized Welding Neck Joints deliver exceptional pipeline performance by effortlessly absorbing massive axial movements under extreme pressures without any risk of bellows buckling or squirm. Manufactured with premium-grade stainless steel internal bellows and heavy-duty carbon steel welding necks, they create a permanent, leak-free, and monolithic bond that withstands severe thermal shifts. Available in a wide variety of sizes and pipe schedules, their pre-beveled ends allow for a fast, precise, and straightforward field welding installation.