Product Characteristics
It uses the energy of the modulated medium to realize automatic regulation, which integrates transmission, control and execution
The pressure setpoint can be adjusted during operation
Flow characteristics: fast opening, sensitive action, simple adjustment and high precision
Under the condition of medium temperature ≤150℃, the static pressure can be stabilized
The attached condenser can be used at a temperature of ≤350℃
According to the function, it can be divided into three control methods: before the control valve, after the control valve, and the constant pressure difference between the two control points
The actuator has three kinds: film type, piston type and bellows type
According to the form of valve inner parts products are divided into single seat, set simple, double seat three kinds
The internal structure of single-seat valve has pressure balance structure such as bellows balance type and piston balance type, which is widely used in various industrial equipment for automatic control of gas, liquid and steam medium pressure reduction or pressure relief regulation.
Body Selection
| 阀芯型式 |
单座(ZZYP)、套筒(ZZYM)、双座(ZZYN) |
| 作用型式 |
减压用阀后压力调节(B型)和泄压用阀前压力调节(K型) |
| 公称通径 |
DN15mm～300mm(1/2”～12”) |
| 流量特性 |
快 开 |
| 调节精度 |
±3～10% |
| 使用温度 |
≤350℃ |
| 减压比 |
最大10,最小1.25 |
| 阀内件材质及处理 |
标准材质组合，使用温度 ·压力范围及泄漏等级参见表1及图1。 |
| 公称压力 |
PN系列：1.6、2.5、4.0、6.3、10.0MPa
Class系列：Class150,300,600 |
| 连接方式 |
法兰式、焊接式、螺纹① |
| 法兰标准 |
PN1.6MPa钢制法兰按GB/T9113.1
PN4.0MPa、6.3 MPa、10.0 MPa钢制管法兰按GB/T9113.2 |
| 密封面型式 |
PN1.6MPa为突面(RF)
PN4.0MPa、6.3 MPa、10.0 MPa,阀体为凹面(F) |
| 法兰距 |
符合GB12221-2005① |
| 阀体及上阀盖材质 |
WCB、WC9、CF8、CF8M② |
| 执行机构型式 |
膜片式、活塞式、波纹管式 |
| 填料 |
聚四氟乙烯、柔性石墨 |
| 表面涂层 |
浅咖色(环氧树脂);阀体为不锈钢时，本体不加涂层。 |
Special Specifications
| 本体部分特殊检查 |
流量特性检验、材料检查(试验报告) |
| 本体部分清洗 |
清洁度要求、禁油、除水处理 |
| 本体部分特殊规格 |
防砂防尘型、防盐腐蚀型、寒冷地区用、热带地区用、禁铜、 接触大气部分的螺栓、螺母采用不锈钢、指定涂层色 |
| 附件要求 |
特殊接口、配取压管段、带压力表 |
| 特殊介质 |
如氧气 |
Structural Style
