One Piece Type Hex Valve is offered in various sizes such as 1/4", 3/8", 1/2", 3/4" and 1" NPT. The Hex Valve has rolled stem threads for enhanced cycle life. The Hex Valve has adjustable gland. The One Piece Type Hex Valve is made using quality grade material such as stainless steel, hastalloy, monel and inconel that ensures good quality.