ZJHP Pneumatic Single Seated Globe Control Valve, WCB, LCB, WC6, WC9, CF8M, CF3M
Valve type :2-way globe valve;
Actuator Type :multi-spring pneumatic diaphragm actuator;
Function Type :linear motion control valve;
Nominal diameter:DN6~DN300;
Nominal pressure:PN16~PN100;150LB-900LB
Connection Type: flange—FF,RF,MF,RTJ; Butt welded-BW
ZJHP Pneumatic single seated control valve is used to control medium flow rate , pressure and high load conditions .The valve body of the ZJHP single seated globe control valve has compact structure ,while the medium passage is S shape ,allowing for large circulation capacity , wide adjustable range ,and high flow characteristic accuracy .The guide portion of the plug has a large guiding area and is characterized by strong anti-vibration performance .The seat sealing performance is in accordance with IEC or GB standards. This pneumatic single seated control valve is equipped with a multi-spring type diaphragm actuator. The structure is compact and the output force is large. The single seated control valve is widely used in the pipeline occasions requiring high shut-off performance,low temperature and high pressure .Due to the wide range of materials and the variety of design forms,these valves can be used in different industrial fields (such as chemical,electric power,paper, food,metallurgy,mining,etc).
The Design Characteristics of ZJHP Pneumatic Single Seated Globe Control Valve:
1. The valve seat adopts the snap-in structure,which can avoid the defect of the snagging type.When the upper cover is pressed,the valve core and the valve seat are automatically centered, and the installation and disassembly is simple and convenient. Even in the case of severe corrosion, the valve seat is easily removed for maintenance.
2. The valve core and the valve stem adopt an integrated structure, which avoids the defects of the plug-in type. Even in the case of high pressure difference,the stability of the valve stem can be ensured;
3. Balanced and unbalanced valve plugs have high cut-off sealing performance in the entire flow and characteristics range;
4. Metal seals and soft seals have the same flow coefficient;
5. The balance valve plug is used in the globe control valve to withstand a relatively large allowable pressure difference;
6. Special surface treatment of the valve inner parts——polishing,nitriding and Stellite resurfacing welding to extend the service life of the regulating valve,the workpiece is more reliable;
7. Adjustable ratio is to 50:1,and 100:1 can also be customized;
8. Use high grade non-asbestos seal or bellows seal;
9. Multi-spring pneumatic actuator can realize direct acting and reverse acting.The spring range can be adjusted without adding other parts. The direct acting actuator can realize the air-to-close operation,and the reverse acting actuator can realize the air-to-open operation.
10. It can be equipped with pneumatic actuator, electric actuator and electro-hydraulic actuator.
Structure and Parameters of Pneumatic Single Seated Control Valve:
Parameters & Property of Pneumatic Single Seated Control Valve:
Body/Bonnet : | WCB,LCB,WC6,WC9,CF8,CF8M,CF3, CF3M |
Plug Material: | F304,F316,etc |
Seat Material: | F304,F316,etc |
Resurfacing Welding: | tungsten carbide,soft seal |
Stem Material: | 17-4PH ASTM A276 F304 |
Upper Bonnet Type | 1.Standard Type:-17~+230℃ |
Body Type | staight-way/angle/jacket insulation |
Packing: | PTFE/asbestos/graphite |
Gasket: | Flange(RF,FM) |
Leakage Class: | 1.Metal seal:ANSI B16.104 Ⅳclass |
Flow Characteristic: | HG20592-2009,ANSI B16.5 |
Connection Type: | flange(RF/FM),butt welding |
Flange Connection Type Standard: | HG20592-2009,ANSI B16.5 |
Rangeability: | 50:1 (100:1 can be customized) |
Actuator: | pneumatic diaphragm/pneumatic piston/electric/ electric hydraulic actuator |
Actuator Technical Parameters of Pneumatic Single Seated Control Valve:
Actuator Type | Pneumatic Diaphragm Type<ZP6100> | |
Air Supply Pressure | 140KPa | 340KPa |
Spring Range | (20-100KPaG) | (80-240KPaG) |
Electric Connection | NPT1/4、NPT3/8 | |
Directing Acting | Valve close when air pressure increasing <FO> | |
Reverse Acting | Valve open when air pressure increasing <FC> | |
Backlash | <1.5% （with positioner） | |
Dead Zone | <1% （with positioner） | |
Temperature | -10?70°C | |
Painting Color | Light green | |
Accessories | Positioner,solenoid valve,limit switch,filter pressure reducing valve,lock valve,air control valve | |
Rated Cv and Travel of Pneumatic Single Seated Control Valve:
DN | Seat Size | Rated Cv(EQ%) | Rated Cv(Quick Open Linear) | Travel |
20 | 6 | 0.32 | — | 16 |
8 | 0.8 | — | 16 | |
10 | 1.6 | — | 16 | |
15 | 4 | — | 16 | |
20 | 6.3 | 10 | 16 | |
25 | 6 | 0.32 | — | 16 |
8 | 0.8 | — | 16 | |
10 | 1.6 | — | 16 | |
15 | 4 | — | 16 | |
20 | 6.3 | 10 | 16 | |
25 | 10 | 16 | 16 | |
32 | 32 | 17 | 25 | 16 |
40 | 40 | 24 | 35 | 25 |
50 | 50 | 44 | 55 | 25 |
65 | 65 | 68 | 85 | 40 |
80 | 80 | 99 | 135 | 40 |
100 | 100 | 175 | 210 | 40 |
125 | 125 | 275 | 345 | 60 |
150 | 150 | 360 | 466 | 60 |
200 | 200 | 640 | 735 | 60 |
250 | 250 | 960 | 1000 | 100 |
300 | 300 | 1300 | 1500 | 100 |
Required Information When Ordering Pneumatic Single Seated Globe Control Valve:
1.Working medium and temperature,medium density;
2.Pre-pressure and back-pressure of the single seated control valve;
3.max/normal/min flow for the pneumatic single seated control valve;
4.Connection method,operation mode,fault location;
5.Pipe diameter/ nominal diameter/ nominal pressure;
6.Accessories: positioner,solenoid valve,filter pressure reducer, limit switch,lock valve, etc.;
· ZJHP Pneumatic Single Seated Globe Control Valve Structure
· Pneumatic Diaphragm Modulating Control Valve Material
Component name | Control Valve Material |
Body/Bonnet | WCB/WCC/WC6/CF8/CF8M/CF3M |
Valve spool/Seat | 304/316/316L(overlaying stellite alloy) |
Packing | Normal:-196～150℃ is PTFE,RTFE,>230℃ is flexible graphite |
Gasket | Normal:Stainless steel with flexible graphite,Special:Metal tooth type gasket |
Diaphragm Cover | Normal:Q235,Special:304 |
Diaphragm | NBR with reinforced polyester fabric |
Spring | Normal:60Si2Mn,Special:50CrVa |
Control valve stem | 2Cr13/17-4PH/304/316/316 |
· Pneumatic Diaphragm Modulating Control Valve Performance
Pneumatic Diaphragm Modulating Control Valve | Linear, percentage, quick open | |
Allowable range | 50: 1 (CV<6.3 30: 1) | |
Rated Cv value | Percentage CV1.6~630 ，linear CV1.8~690 | |
Pneumatic control valve Allowable leakage | Metal seal: IV grade（0.01% rated capacity） | |
Pneumatic Diaphragm Modulating Control Valve Performance | ||
Intrinsic error % | ±1.5 | |
Return difference, % | ≤1.5 | |
Dead zone, % | ≤0.6 | |
Difference from beginning to end point, % | ±2.5 | |
Rated travel difference, % | ≤2.5 | |
· Pneumatic Diaphragm Modulating Control Valve actuator parameter
Control Valve Type\ Method | Pneumatic diaphragm actuator |
ZH23～ZH56 | |
Multi-spring type | |
Usage | Regulating type, ON-OFF type |
Air supply pressure or Power supply voltage | Air supply pressure (Spring range) |
Connector | Air pipe connector: RC1/4 |
Direct action | Pressure increase, stem descend, valve close. |
Reaction | Pressure increase, stem ascend, valve open. |
Input signal | 40～20mA.DC（with positioner） |
Lag | ≤1%FS（with positioner） |
Linear type | 2%FS（with positioner） |
Environmental temperature | -10℃～+70℃ |
Pneumatic control valve | E/P, P/P valve positioner, filter regulator, valve converter, solenoid valve, limited switch |
· Pneumatic Diaphragm Modulating Control Valve technical parameter
Seat diameter(mm) | 10 | 12 | 15 | 20 | 25 | 32 | 40 | 50 | 65 | 80 | 100 | 125 | 150 | 200 | |
Rated Cv | Percentage | 1.6 | 2.5 | 4.0 | 6.3 | 10 | 16 | 25 | 40 | 63 | 100 | 160 | 250 | 400 | 630 |
Linear | 1.8 | 2.8 | 4.4 | 6.9 | 11 | 17.6 | 27.5 | 44 | 69 | 110 | 176 | 275 | 440 | 690 | |
Nom. size | Travel | Option flow characteristic Cv. (★standard ●recommanded ○customized) | |||||||||||||
DN20 | 16mm | ● | ● | ● | ★ | ||||||||||
DN25 | ● | ● | ● | ● | ★ | ||||||||||
DN32 | 25 mm | ○ | ○ | ○ | ○ | ○ | ★ | ||||||||
DN40 | ○ | ○ | ○ | ○ | ● | ★ | |||||||||
DN50 | ○ | ○ | ○ | ● | ● | ★ | |||||||||
DN65 | 40mm | ○ | ○ | ○ | ★ | ||||||||||
DN80 | ○ | ○ | ○ | ● | ★ | ||||||||||
DN100 | ○ | ○ | ○ | ● | ● | ★ | |||||||||
DN125 | 60mm | ○ | ○ | ○ | ★ | ||||||||||
DN150 | ○ | ○ | ● | ★ | |||||||||||
DN200 | ○ | ○ | ● | ● | ★ | ||||||||||
Pneumatic actuator | ZHA/B-22 | ZHA/B-23 | ZHA/B-34 | ZHA/B-45 | |||||||||||
350 | 350 | 560 | 900 | ||||||||||||
Action | Spring range | Metal sealing allowable pressure difference (MPa) | |||||||||||||
Air open | 20-100KPa | 4.46 | 3.09 | 1.98 | 1.16 | 0.7 | 0.44 | 0.28 | 0.18 | 0.17 | 0.11 | 0.07 | 0.07 | 0.05 | 0.03 |
40-200 KPa | 6.4 | 6.4 | 5.94 | 3.34 | 2.14 | 1.31 | 0.84 | 0.53 | 0.51 | 0.33 | 0.21 | 0.22 | 0.15 | 0.09 | |
80-240 KPa | 6.4 | 6.4 | 6.4 | 6.4 | 4.99 | 3.05 | 1.95 | 1.25 | 1.18 | 0.78 | 0.5 | 0.51 | 0.36 | 0.21 | |
Air close | 20-100KPa | 6.4 | 6.19 | 3.96 | 2.23 | 2.14 | 0.87 | 0.56 | 0.35 | 0.34 | 0.22 | 0.14 | 0.15 | 0.1 | 0.06 |
40-200 KPa | 6.4 | 6.4 | 6.4 | 6.4 | 6.4 | 5.86 | 3.64 | 2.3 | 2.21 | 1.43 | 0.91 | 0.95 | 0.66 | 0.37 | |
80-240 KPa | 6.4 | 6.4 | 6.4 | 6.4 | 6.4 | 6.4 | 5.04 | 3.18 | 3.06 | 1.98 | 1.26 | 1.32 | 0.92 | 0.52 | |
Dimensions of Pneumatic Single Seated Control Valve
DN | L | H | H1 | H2 | A | M | ||||||
PN16/25 | PN40 | PN63 | Standard Type | Extended I Type | Extended II Type | Bellows Type | ||||||
15/20 | 184 | 194 | 206 | 130 | 240 | 300 | 270 | 95 | 35 | 52.5 | M12 x 1.25 | |
25 | 184 | 197 | 210 | 140 | 250 | 310 | 280 | 95 | 35 | 57.5 | ||
32 | 200 | 210 | 220 | 155 | 265 | 325 | 295 | 95 | 35 | |||
70 | ||||||||||||
40 | 222 | 235 | 251 | 170 | 280 | 340 | 340 | 95 | 35 | 75 | ||
50 | 254 | 267 | 286 | 180 | 290 | 350 | 350 | 95 | 35 | 82.5 | ||
65 | 276 | 292 | 311 | 220 | 350 | 410 | 475 | 110 | 45 | 92.5 | M16 x 1.5 | |
80 | 298 | 317 | 337 | 230 | 360 | 420 | 485 | 110 | 45 | 100 | ||
100 | 352 | 368 | 394 | 245 | 375 | 435 | 500 | 110 | 45 | 117.5 | ||
125 | 410 | 425 | 440 | 295 | 455 | 525 | 645 | 135 | 55 | 140 | M20x1.5 | |
150 | 451 | 473 | 508 | 325 | 485 | 555 | 675 | 135 | 55 | 160 | ||
200 | 600 | 600 | 650 | 385 | 545 | 615 | 735 | 135 | 55 | 210 | ||
250 | 673 | 708 | 752 | 470 | 650 | 725 | 950 | 170 | 60 | 260 | M24x1.5 | |
Shinjo Company is a high tech enterprise specialized in producing various industrial valves. Shinjo strive on providing full package of industrial valve solution to client, focus on industrial valve manufacture, development, sales and services.
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