产品型号：ZZCP

阀体材质：WCB、304、316 

阀芯材质：WCB、304、316 

阀盖形式：标准型、常温型、高温型、低温型、散热型、波纹管密封型 

压力等级：PN16、PN25、PN40、PN64 

阀座结构：单座型、压力平衡型、双座 

流量特性：快开型 

作用方式：阀前泄压型、阀后减压型 

调压范围：15－3000KPA

Product Overview 
The self-operated pressure-balanced control valve is widely used in industry. It is a control device that requires no external energy source; it only needs the changes in the measured pressure, temperature, or flow to automatically regulate according to a preset value. It is an energy-saving instrument with multi-functional instrument control systems such as control and execution. Its types can be divided into self-operated pressure (micro-pressure) control valves, self-operated (differential pressure) flow control valves, and self-operated temperature control valves. It is suitable for urban heating, heating supply, and occasions where there is no power or gas supply but control is required.

Standard Technical Parameters

• Valve Body Type: Single-seat
• Nominal Diameter: DN20–DN300
• Nominal Pressure: ANSI 150, 300, 600LB / JIS 10, 16, 20, 30, 40K / PN1.6, 2.5, 4.0, 6.4 MPa
• Connection Type: Flanged: FF, RF, RJ, and LG
• Flange Standard: ANSI B16.5, JIS B2201 / JB/T 79.1 PN1.6MPa, JB/T 79.2
• Threaded: DIN, NPT, RC, BSP, G, etc.
• Welded: GB 12224-89
• Sealing Face Type: PN16 raised face (RF); PN40, PN63, PN100 recessed face (FM)
• Material: WCB, WCC, WC6, 304, 316, 304L, 316L
• Bonnet: Standard type (-20°C to +200°C), Cryogenic type (-60°C to -196°C), Finned type (-40°C to 450°C), Bellows seal type.
• Gland Type: Clamp plate type
• Packing: V-type PTFE, flexible graphite

Valve Internals

• Plug Type: Single-seat plunger type, Pressure-balanced type, Double-seat, Metal seal, Soft seal, Quick opening characteristic
• Plug & Seat: 304, 316, 316L + STL (Stellite)

Actuator

• Type: Multi-spring diaphragm actuator
• Diaphragm Material: NBR reinforced with polyester fabric
• Signal Interface: Internal thread M16×1.5

Product Performance

• Rated Kv Value: Refer to table
• Flow Characteristic: Quick opening
• Action Mode: Upstream pressure control, Downstream pressure control
• Pressure Regulation Range: Refer to table
• Pressure Control Accuracy: ±8%
• Leakage Class: Metal seal: <0.01 (ANSI B16.104-1976 Class IV); Soft seal: <0.00001%