Widely used for precise control of process parameters such as pressure, flow rate, temperature, and liquid level in gases, liquids, and other media to maintain them at given values. It is particularly suitable for regulating high viscosity fluids containing suspended solids and particulate matter with small leakage and small pressure difference before and after the valve, which can avoid coking, blockage, and facilitate self-cleaning and cleaning.

1、 Product Overview

Product model: ZJHJ

Product Name: Compact Pneumatic Thin Film Regulating Angle Valve

The ZJHJ precision small pneumatic thin film regulating angle valve adopts a top guide structure and is equipped with a multi spring actuator. It has the advantages of compact structure, light weight, sensitive action, S-shaped fluid channel, low pressure loss, large valve capacity, precise flow characteristics, and easy disassembly and assembly. Widely used for precise control of process parameters such as pressure, flow rate, temperature, and liquid level in gases, liquids, and other media to maintain them at given values. It is particularly suitable for regulating high viscosity fluids containing suspended solids and particulate matter with small leakage and small pressure difference before and after the valve, which can avoid coking, blockage, and facilitate self-cleaning and cleaning.

IIPneumatic thin film precision angle regulating valveModel preparation instructions

Z J H J 16 C G K
Automatic control valve actuator: multi spring pneumatic diaphragm actuator Valve structure type: nominal pressure: valve body material: temperature type: action type:
J： Indicating small size F: Indicating diversion valve 16: Indicating 1.6MPa C: Indicating carbon steel G: Medium temperature type, room temperature omitted K: Indicating gas open type
H： Representing merging valve 25: Representing 2.5MPa P: Representing stainless steel B: Representing gas shut-off type
J： Representing angle valve 40: Representing 4.0MPa F46: Representing valve body lined with fluorine
64: represents 6.4MPa

IIIPneumatic thin film precision angle regulating valveMain technical parameters and performance

1. Upper valve cover
Room temperature type -20~+200 ℃
Heat dissipation type -40~+450 ℃
Cover type, bolt compression type
V-shaped PTFE packing, flexible graphite, stainless steel corrugated pipe
2. Valve components
Guided single seat plunger type valve core on the valve core type
Percentage characteristics, linear characteristics, and fast opening characteristics of traffic characteristics
Material 1C18Ni9Ti 0Cr18Ni12Mo2Ti
3. Executing Agency
Type: Multi spring thin film actuator
Diaphragm Material Nitrile Rubber Clamp Reinforced Polyester Accumulation
Spring range 0.02~0.10, 0.08~0.24 MPa
Gas supply pressure 0.14, 0.16, 0.28, 0.40MPa
Internal thread of air source connector M10 × 1
Environmental temperature -30~+70 ℃
Valve action type: gas open or gas closed
Attachment locator, handwheel mechanism
4. Performance
The leakage rate of the metal valve seat meets the standard ANSI B16.104 Grade IV and is less than 0.01% of the rated Cv
Return difference 3% (without locator) 1% (with locator)
Linear ± 5% (without locator) ± 1% (with locator)
Remarks: Use V-shaped polytetrafluoroethylene packing
Adjustable range 50:1
Connection form flange according to JB78-59 JB79-59

4Pneumatic thin film precision angle regulating valveSpecification parameter table

Nominal diameter DN 20 25 32 40 50 65 80 100 125 150 200 250 300
Valve seat diameter dn (mm) 20 25 32 40 50 65 80 100 125 150 200 250 300
Rated flow coefficient Kv 6.5 10 16 25 40 63 100 160 250 400 630
Travel mm 10 16 25 40 60 100
5Pneumatic thin film precision angle regulating valveMain component materials and recommended temperature range for use

Valve body material nominal pressure MPa medium working temperature ℃
< < < < < < < < < < < < < <
120 200 250 300 350 400 425 450 475 500 525 550 575 600
Maximum working pressure MPa
Cast iron HT200 1.6 1.6 1.5
Cast steel ZG25 4.0
6.4 4.0
6.4 3.7
5.9 3.3
5.2 3.0
4.7 2.8
4.1 2.3
3.7 1.8
2.9
Cast stainless steel ZG1Cr18Ni9Ti 4.0
6.4 4.0
6.4 3.0
4.4 2.7
4.2 2.4
4.0 2.1
3.8 1.9
3.5 1.7
3.4 1.4
3.2 1.1
2.9 0.8
2.6
VIPneumatic thin film precision angle regulating valveMain external connection dimensions

Nominal diameter DN (mm) L (mm) H1 (mm) H (mm) A
1.6 (MPa) at room temperature and medium temperature
20 100 100 349 444 285
25 115 115 350 445 285
32 130 130 358 458 285
40 130 130 378 478 285
50 150 150 393 493 285
65 170 170 494 594 360
80 190 190 503 628 360
100 215 215 521 646 360
125 250 250 634 759 360
150 275 275 696 846 470
200 325 325 715 915 470

1. Product model and name2. nominal diameter DN (mm)3. Nominal pressure4. Traffic characteristics5. Valve body material6. Rated flow coefficient7. Type of medium and temperature range8. Pressure difference before and after the valve9. Control signals.