Design Features

1.Spring loaded discs assures good sealing performance between the discs and seatrings in small pressure differential  services.
2.The disc is pushed to the seat at the low pressure side to ensure the sealing in the high pressure differential services.
3.Free from thermal binding concerns, resulting in a distinct safety advantage in high temperature service.

Product Range

Size/Rating: NPS 2"~64"/CLASS 150~2500LB
Body Materials: Carbon Steel, Alloy Steel, Duplex Steel
Trim: Per API600
Connection: Flange, weld

Design Standards

Basic Design: API 600, ASME B16.34
Structure Length: ASME B16.10
End Connection: ASME B16.5, MSS SP-44/ASME B16.47,ASME B16.25, EN 1092
Test & Inspection: API 598