API 16C 2in. FIG207 blind cap  

The Style 207 WECO Hammer unions is fitted with factory nitrile rubber O-rings on the union head cap for effective closure, the threaded fittings are interchangeable with Styles 200 and 206 threaded fittings, butt-welded Sch.40 is available.Widely used in the connection of Chiksan pup joints and Integral Fittings. Recommended for sealing manifold connections and protecting line fitting threads in air, water, oil or steam applications. 207 type 2000PSI NSCWP, test pressure 3000PSI blue cap, gray parts. Qinsen unions for low-pressure services feature a primary metal-to-metal seal. The spherical surface of the male sub and conical surface of the female sub provide a large, ball-and-cone sealing surface. This metal-to-metal seal remains leak-proof even when one surface is slightly pitted or misaligned.