一片式内螺纹球阀 Q11F

feature(特点)：

blow-out proof stem(防脱出阀杆)

investment casting body(精密铸造阀体)

pressure blance hole in ballslot(带泄压孔球体)

reduce port(缩径)

various tread standard available(适合多种螺纹标准)

locking decice available(可选带锁手柄)

standard(标准)

design（设计标准）: asme b16.34
wall thickness （壁厚标准）:asmeb 16.34,gb12224
pipe thread（管螺纹标准）: ansi b 1.20.1,bs 21/2779,din259/2999,iso 228
face to face acc（结构长度标准）:din 3202-m3
inspection & testing（检验与测试标准）:api598