Brass Female Ball Valve: Body: Brass or Zinc-alloy. Ball: Brass surface chromeplate or Carbon steel surface chromeplate. Stem: Brass or Carbon steel. "O"-ring: NBR. Seal-ring: PTFE. Screw: Brass or Carbon steel. Bonnet: Brass or Carbon steel. Handle: Carbon steel. Size Range: 1/2"--2" or DN15mm, DN20mm, DN25mm, DN32mm, DN40mm and DN50mm. Nominal Pressure: 1.6 MPa. Thread: FF, BSP/T or BSP/P Surface: Yellow or nickle plated Suitable mediam: Water. Non-causticity liquid, saturated steam. Thread standard, detailed material request or other details can be produced in accordance with client's specific requirements.