Metallurgical oxygen system pipe system, should use strict degreasing treatment, needle valveflange J29 Angle Pressure Gauge valve connection.
冶金系统中的氧气管路系统中，宜选用经过严格脱脂处理，法兰连接的针型阀。
2
If the operator mounting holes do not line up with the valveflange holes, the stop screw (s) should be backed off and handwheel turned until holes are aligned.
如果操作装置的安装孔与阀门法兰孔没有对应上，就要把锁定螺栓退回，旋转手轮式的螺栓孔对准为止。
3
When ordering, specify valve size, figure number, and the exact distance from the valveflange to the top of extension flange (customer-specified length shown at right).