skills requirement:

Design and manufacture: ANSI B16.34, API 600, API 6A, API 6D, BS1414

Structure length: ANSI B16.10, API6D

Flange connection: ANSI B16.5

Test and acceptance: API 598, API 6D

Body material: carbon steel, stainless steel, special materials, etc. according to customer requirements

Pressure rating: 150LB, 300LB, 600LB, 900LB, 1500LB

Size: 2 inches - 24 inches

Mode of operation: hand wheel operation, bevel gear operation, electric operation, pneumatic operation