Product model: ZZYM
Nominal diameter: DN20 ~ 200mm
Pressure range: PN1.0 ~ 6.4Mpa
Service medium: Steam, non corrosive liquid and gas
Manufacturing Standard: GB / T4213-1992
Flange standard: GB / T9113-2000
Structure length: GB / T12221-1989
Valve material: WCB, CF8
Leakage class: ANSI B16.104-1976 (class IV)
PRODUCT OVERVIEW
The self operated sleeve pressure regulating valve is composed of valve body, balance spring and other components without additional energy. It uses the self pressure of the regulated medium as the power source to introduce the actuator to push the spring to control the valve core position, change the pressure difference and flow at both ends, stabilize the pressure in front of (or behind) the valve, and has the advantages of sensitive action, good sealing and small fluctuation of pressure set point. It is widely used in the automatic control of pressure reduction and stabilization or pressure relief and stabilization of gas, liquid and steam media.
PERFORMANCE CHARACTERISTICS
1. The pressure setting value of the self operated pressure regulating valve can also be adjusted during operation;
2. It adopts fast opening flow characteristics, with sensitive action, high regulation and good sealing performance;
3. Automatic control of medium pressure such as gas, liquid and steam in various industrial equipment;
4. The customized high-pressure type or high-temperature type can be selected according to the pressure and temperature used on site.
PRODUCT MODEL
| Category | Model | Category | Model |
| Single seat pressure closed type | ZZYP-16～64B | Single seat pressure closed type | ZZYP-16～64K |
| Double seat press open type | ZZYN-16～64B | Double seat press open type | ZZYN-16～64K |
| Sleeve compression type | ZZYM-16～64B | Sleeve compression type | ZZYM-16～64K |
Pressure closing type: used for pressure regulation behind the valve. When the pressure behind the valve increases, the valve closes to achieve the purpose of reducing pressure and stabilizing pressure.
Pressure opening type: used for pressure regulation in front of the valve. When the pressure behind the valve increases, the valve opens to achieve the purpose of pressure relief and pressure stabilization.
MAIN TECHNICAL PARAMETERS
| Nominal diameterDN（mm） | 20 | 25 | 32 | 40 | 50 | 65 | 80 | 100 | 125 | 150 | 200 | |||
| Seat diameterDN（mm） | 10 | 12 | 15 | 20 | ||||||||||
| Rated flow coefficientKv | 1.8 | 2.4 | 4.4 | 4 | 11 | 20 | 30 | 48 | 75 | 120 | 190 | 300 | 480 | 760 |
| Allowable differential pressure（MPa） | 2.5 | 2.0 | 1.6 | 1.0 | ||||||||||
| Nominal pressure（MPa） | 1.6 4.0 6.4 | |||||||||||||
| Natural flow characteristics | Come on | |||||||||||||
Ensure the normal operation of the pressure regulating valve Minimum differential pressure P （MPa） | 0.05 | |||||||||||||
| Pressure subsection range（KPa） |
15～50 40～80 60～100 80～140 120～80 160～220 200～260 240～300 280～350 330～400 380～450 430～500 480～560 540～620 600～700 680～800 780～900 800～1000 900～2000 | |||||||||||||
| Operating temperature ℃ | Liquid ≤ 140; Gas ≤ 80; Equipped with condenser and heat sink ≤ 350 | |||||||||||||
| Suitable medium | Gas, steam, low viscosity liquid | |||||||||||||
| Flange size and type | PN10、16、40GB9113-88、PN64JB/T7-94； PN10, 16 male, PN40, 64 male Or select other standard types of flanges (such as ANSI, JIS, DIN and other standards) according to user requirements | |||||||||||||
| Structure length | According to GB12221-89 | |||||||||||||
| Actuator signal interface | Internal thread M16 × one point five | |||||||||||||
Note: the pressure section range can be designed according to user requirements.
MAIN PERFORMANCE INDEXES
| Control accuracy% | ±8 | |||||||||||
| Allowable leakage | Hard seal（L/H） | Sleeve (grade II)≤5×10-3×Valve rated capacity | ||||||||||
| Soft seal（ml/min） | DN(mm) | |||||||||||
| 20 | 25 | 32 | 40 | 50 | 65 | 80 | 100 | 125 | 150 | 200 | ||
| 0.15 | 0.3 | 0.45 | 0.6 | 0.9 | 1.7 | 4.0 | 6.75 | |||||
MAIN CONNECTING DIMENSIONS AND WEIGHT
| Nominal diameter(DN) | 20 | 25 | 32 | 40 | 50 | 65 | 80 | 100 | 125 | 150 | 200 | ||
| L | PN16、40 | 150 | 160 | 180 | 200 | 230 | 290 | 310 | 350 | 400 | 480 | 600 | |
| PN64 | 230 | 230 | 260 | 260 | 300 | 340 | 380 | 430 | 500 | 550 | 650 | ||
| B | 233 | 332 | 373 | 522 | 673 | 980 | 1200 | ||||||
| H | Pressure regulation range（MPa） | 15～140 | 475 | 520 | 540 | 710 | 780 | 840 | 880 | 915 | |||
| 120～300 | 455 | 500 | 520 | 690 | 760 | 800 | 870 | 880 | |||||
| 280～500 | 450 | 490 | 510 | 680 | 750 | 790 | 860 | 870 | |||||
| 480～1000 | 445 | 480 | 670 | 740 | 780 | 850 | 860 | ||||||
| 600～1500 | 445 | 570 | 600 | 820 | 890 | 950 | 950 | 1000 | |||||
| 1000～2500 | 445 | 570 | 600 | 820 | 890 | 950 | 950 | 1000 | |||||
| A | Pressure regulation range（MPa） | 15～140 | φ282 | φ308 | |||||||||
| 120～300 | φ232 | ||||||||||||
| 280～1000 | φ196 | φ196 | φ282 | ||||||||||
| 600～2500 | φ85 | φ96 | |||||||||||
| Approximate weight（Kg） | 26 | 37 | 42 | 72 | 90 | 114 | 130 | 144 | 180 | ||||
