ZMAN、ZMBN、ZHAN、ZHBN、ZJHN、VN及其变形产品。

级。软密封可达VI级；流量特性为线性或等百分比。多种多样的品种规格可供选择。本公司产品可等同国产

40、64；阀体口径范围DN25~450。适用流体温度有-250℃~+560℃范围内多种档次。泄漏量标准为Ⅱ级Ⅲ

本系列产品有标准型、波纹管密封型、夹套保温型、高温型等多种品种。产品公称压力等级有PN16、25、

流量、温度、液位保持在给定值。特别适用于压差较大的，而允许泄漏量也较大的不是很清洁的介质场所。

阀容量大、流量特性精确、拆装方便等优点。广泛应用于精确控制气体、液体、蒸汽等介质，工艺参数如压力、

1303型气动薄膜双座调节阀采用双导向结构，配用多弹簧执行机构。具有结构紧凑、重量轻、动作灵敏、

1303型气动薄膜双座调节阀

59

Product

BAIC GROUP

1303 Type Pneumatic Membrane Double-Seat Regulator

1303 type pneumatic membrane double-seat regulator adopts double-guided structure and is equipped

with multi-spring actuator. It has the advantages of compact structure, light weight, sensitive action, large

valve capacity, accurate flow characteristics, easy disassembly and installation. Widely used for precise

control of gases, liquids, vapors and other media, process parameters such as pressure, flow, temperature

and liquid level are maintained at a given value. Particularly suitable for not very clean media where the

differential pressure is large and the allowable leakage is also large.

This series of products have standard type, bellows sealed type, jacketed insulation type, high

temperature type and other varieties. The nominal pressure level of the products are PN16. 25. 40. 64; the

range of valve body caliber is DN25~450. Various grades for fluid temperatures ranging from -250°C to +560°

C. Leakage amount standard is Class II, Class III. Soft seal can be up to Class VI; flow characteristics are

linear or equal percentage. A wide variety of specifications are available. Our products are equivalent to

domestic ZMAN, ZMBN, ZHAN, ZHBN, ZJHN, VN and their variant products.

1. Membrane cover 2. Membrane 3. Spring 4. Push rod 5. Bracket

6. Valve stem 7. Bonnet 8. Valve core 9. Valve seat 10. Valve body

Characteristics

· Top and bottom double-guide double-seat

regulator, good stability during operation.

· With two valve cores and valve seats and a \"

four-way\" valve body, the valve can be easily

converted from positive mounting to negative

mounting, and the air-to-close valve can be turned

into an air-to-open valve.

· The valve body is designed according to the

principle of fluid dynamics of equal cross-section

low flow resistance flow path, the rated flow

coefficient is large.

· Low unbalance force and high allowable

operating differential pressure.

· The actuator adopts a multi-spring mechanism,

reducing height by 30% and weight by 30%.

· Large adjustable range, intrinsic adjustable ratio

· 1303 type metal valve core is suitable for a

wide range of working occasions.

· 1303 type soft seal structure valve cores

meet Class VI leakage standards.

· 1343 type bellows sealed type regulator

provides a complete seal against a moving

valve stem, blocking fluid leakage.

· 1333 Type regulator with insulation jackets

are used in applications where fluid crystallizes

and solidifies easily after cooling, resulting in

clogging.

· 1323 Low temperature type is used in low

temperature and deep-cooling occasions.

· 1303 High temperature type (450~560°C)

· 1313 heat dissipation type (-60~450℃

of 50:1.

)

60

Product

BAIC GROUP

Specifications and technical parameters

Nominal diameter DN (mm) 25 32 40 50 65 80 100 125 150 200

Rated flow

coefficient

(Kv)

Linear 12.5 19.5 30.5 48.4 76 125 195 305 484 760

Equal percent 11 17.6 27.5 44 69 110 176 275 440 690

Rated stroke L(mm) 16 25 40 60

Effective membrane area Ae

(cm²) 280 400 600 1000

Nominal diameter DN (mm) 250 300 350 400

Rated Kv

Linear 1100 1760 2750 4400

Equal percent 1000 1600 2500 4000

Rated stroke L(mm) 100 100 100 100

Effective membrane area Ae

(cm²) 1600

Nominal

pressurePN

MPa 1.6,2.5,4.0,6.4(6.3),10.0

Bar 16,25,40,64(63),100

Lb ANSI:Class150, Class300, Class600

Intrinsic flow characteristics Linear (not recommend), equal percentages (preferred)

Intrinsic adjustable ratio (R) 50

Spring range (KPa) 20～10040～20080～240

Air source pressure 0.14/0.25/0.4

Allowable leakage amount(1/h

)

Class II (5×10³×valve rated capacity) metal hard seal

Operating

temperature

T(℃)

Normal

temperature type -20～200-40～250-60～250

Heat dissipation

type -40～450 -60～450

High temperature

type (Use of high temperature materials) 450～650

Low temperature

type -60～-100 -100～-200 -200～-250

Cut-off type -40～150 (valve core clamp PTFE) -60～200 (valve core clamp reinforced PTFE)

1. Performance indicators of this product implement GB/T4213-92 standard

2. There is no double-seat valve for DN25 or below, DN250-400 is not a national unified product,

KV value should be noted!

3. Optional other spring ranges

Bonnet type

Jacketed insulation type Bellows sealed type Low temperature type

61

Product

BAIC GROUP

Allowable differential pressure

Air-to-close type regulator allowable differential pressure table

Effective membrane area Ae (cm²) 280 400 600 1000

Signal range Pr (KPa) 20-100 40-200 20-100 40-200 20-100 40-200 20-100 40-200

Air source pressure Ps (MPa) 0.14 0.25 0.14 0.25 0.14 0.25 0.14 0.25

Accessory required - P - P - P - P

Nominal

diameter

DN (mm)

and valve

seat

diameter dn

(mm)

25 25 5.57 6.40

32 32 6.16 6.40

40

25 5.57 6.40

32 6.16 6.40

40 4.90 6.40

50

32 6.16 6.40

40 4.90 6.40

50 3.90 6.40

65 65 4.48 6.40

80

50 3.90 6.40

65 4.48 6.40

80 3.62 6.40

100

65 4.48 6.40

80 3.62 6.40

100 2.89 6.40

125 125 3.85 6.40

150

100 2.89 6.40

125 3.85 6.40

150 3.20 6.40

200

125 3.85 6.40

150 3.20 6.40

200 1.60 6.40

1. P: Valve positioner.

2. For the reduced capacity valve body allowable differential pressure, taking the same diameter

full capacity valve body allowable differential pressure meter.

3. The allowable differential pressure only refers to the value configured according to the

standard actuator, and the actuator can be matched according to the specific working conditions

to meet the usage requirements.

62

Product

BAIC GROUP

Air-to-open type regulator allowable differential pressure table

Effective membrane area Ae (cm²) 280 400 600 1000

Signal range Pr (KPa) 20-100 40-200 20-100 40-200 20-100 40-200 20-100 40-200

Air source pressure Ps (MPa) 0.14 0.25 0.14 0.25 0.14 0.25 0.14 0.25

Accessory required - P - P - P - P

Nominal

diameter DN

(mm) and

valve seat

diameter dn

(mm)

25 25 5.57 6.40

32 32 6.16 6.40

40

25 5.57 6.40

32 6.16 6.40

40 4.90 6.40

50

32 6.16 6.40

40 4.90 6.40

50 3.90 6.40

65 65 4.48 6.40

80

50 3.90 6.40

65 4.48 6.40

80 3.63 6.40

100

65 4.48 6.40

80 3.63 6.40

100 2.90 6.40

125 125 3.85 6.40

150

100 2.90 6.40

125 3.85 6.40

150 3.20 6.40

200

125 3.85 6.40

150 3.20 6.40

200 1.60 6.40

1. P: Valve positioner.

2. For the reduced capacity valve body allowable differential pressure, taking the same diameter full

capacity valve body allowable differential pressure meter.

3. The allowable differential pressure only refers to the value configured according to the standard

actuator, and the actuator can be matched according to the specific working conditions to meet the

usage requirements.

63

Product

BAIC GROUP

Outline dimensions and weight

Unit: mm

Nominal diameter(DN) 25 32 40 50 65 80 100 125 150 200

ΦA 280 308 395 500

L

PN16 160 180 200 230 290 310 350 400 480 600

PN64 206 210 220 286 311 337 394 460 508 610

H1

PN16 91 108 118 135 150 185 202 225 303 340

PN40 91 108 118 135 150 185 202 225 303 340

PN64 120 132 137 159 179 205 253 266 288 376

H

Normal

type

PN16 376 420 420 420 580 580 610 730 800 800

PN40 376 420 420 420 580 580 610 730 800 800

PN64 395 445 445 445 595 595 650 780 850 850

High temperature

type 476 510 510 510 710 710 710 870 960 960

Bellows type 476 510 510 510 710 710 710 870 960 960

Low temperature

type Normal type height+ (700～1100)

Weight

-100

H2

℃ 500 600 700

-200℃ 700 800 900

-250℃ 900 1000 1100

(kg)

Low

temperature

Normal

type

PN16 23 24 29 32 58 70 85 135 165 220

PN40 23 24 29 32 58 70 87 138 172 230

PN64 26 27 35 40 75 90 102 155 200 320

High temperature

type 26 26 30 34 62 75 90 145 175 233

Bellows type 27 30 38 42 72 95 120 175 212 273

Low temperature

type Normal type weight increase by (10-20)%

type

ΦD3 260 285 305 340 370 405 460 525 590 700

ΦD4 290 315 335 370 400 435 490 555 630 740

Bolt holen-d 8-Φ14 8- Φ

14

8- Φ

16

8-Φ

16

10-Φ

16

10-Φ

16

12-Φ

18

14- Φ

18

16- Φ

18

18- φ

18

Standard type

Low temperature type

DN250-450 according to our company's design data

Note: With handwheel mechanism valve, height H should be increased by 180 (DN20 ~ 50), 240 (DN65 ~

100), 304 (DN125 ~ 200)

64

Product

BAIC GROUP

Connection dimensions and standards

· Flanges according to GB/T9113-2000 (default standard). Also can be according to JB/T79.1-94, JB/T79

.2-94, or HG20592~HG20635-2009.

· Flange sealing surface type: PN16 is convex flange, PN25 is convex flange, PN40, PN64(63) are

concave-convex flanges, and the valve body is concave flange.

· Flange end surface distance according to GB/T12221-2005 (other standards must be specified).

· Welding connection groove according to: GB/T12224-2005.

· Actuator air signal interface: internal thread M10 × 1 (DN ≤ 100), internal thread M16 × 1.5 (DN> 100).

· Distance between valve body flange and flange end surface can be manufactured according to user

specified standards, such as ANSI, JIS, DIN, etc.

Ordering information

When ordering, users are requested to provide the following materials

· Regulator name, model and purpose.

· Nominal diameter (mm), nominal pressure (MPa), operating temperature and range.

· Upstream pressure, downstream pressure.

· Media name and status, media flow rate.

· Bonnet type.

· Whole machine action mode (air-to-open or air-to-close), instrument air (air source pressure).

· Material requirements for valve body and valve internal parts.

· Accessory requirements:

Electro-pneumatic valve positioners, air filter decompressor, solenoid valve, holding valve, valve

position transmitters, (top-mounted) handwheels, etc.

· Valve body flange standards.

· Valve body structure length (flange surface distance L).

· Other special requirements (e.g., corrosion resistance requirements, explosion-proof level

requirements, leakage level limitation requirements, etc.).

Technical parameters are subject to change without notice!