ZZYP Self operated regulating valveDetailed product description：

ZZYP regulating valve is a type of valve that does not require external energy. It uses the energy of the controlled medium as a power source and introduces it into the execution membrane chamber to generate thrust, controlling the movement of the throttling element to achieve automatic regulation. ZZYP regulating valve has comprehensive functions of measurement, execution, and control. Can be used in places without gas or electricity. ZZYP self regulating valves are widely used in the automatic control systems of various equipment gas, liquid, and steam media in the petroleum, chemical, power plant, light industry, and printing and dyeing industries. They are used for automatic control of deceleration pressure, pressure stabilization (for pressure regulation after the valve), pressure relief, and pressure stabilization (for pressure regulation before the valve). According to different working conditions of users, different valve core structures and actuators can be selected to achieve the best control effect.

ZZYP self regulating valve product model:

category	model	category	model
Single seat pressure closed type	ZZYP-16～64B	Single seat pressure closed type	ZZYP-16～64K
Double seat pressure closed type	ZZYN-16～64B	Double seat pressure closed type	ZZYN-16～64K
Sleeve compression closed type	ZZYM-16～64B	Sleeve compression closed type	ZZYM-16～64K

Note: 1. The pressure closed type is used for regulating the pressure behind the valve. When the pressure behind the valve increases, the valve closes to achieve the purpose of pressure reduction and stabilization. 2. The pressure open type is used for regulating the pressure behind the valve. When the pressure behind the valve increases, the valve opens to achieve the purpose of pressure relief and stabilization.

Main technical parameters of ZZYP self regulating valve:

Nominal diameter DN (mm)

twenty

twenty-five

thirty-two

forty

fifty

sixty-five

eighty

one hundred

one hundred and twenty-five

one hundred and fifty

two hundred

Valve seat diameter DN (mm)

ten

twelve

fifteen

twenty

Rated flow coefficient Kv

one point eight

two point four

four point four

four

eleven

twenty

thirty

forty-eight

seventy-five

one hundred and twenty

one hundred and ninety

three hundred

four hundred and eighty

seven hundred and sixty

Allowable pressure difference (MPa)

two point five

two

one point six

one

Nominal pressure (MPa)

1.6 4.0 6.4

Inherent flow characteristics

Quick open

Ensure the normal operation of the pressure regulating valve Minimum pressure difference P (MPa)

zero point zero five

Pressure segmentation 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

Working temperature ℃

Liquid ≤ 140; Gas ≤ 80; Equipped with condenser and heat sink ≤ 350

Suitable for media

Gas, steam, low viscosity liquid

Flange size and type

PN10、16、40GB9113-88、PN64JB/T7-94； PN10， 16 convex, PN40， 64 concave Alternatively, other standard types of flanges (such as ANSI, JIS, DIN, etc.) can be selected according to user requirements

structural length

According to GB12221-89 standard

Can be equipped with accessories

Condenser (used in situations where the medium is steam), heat sink, etc.

Execution mechanism signal interface

Internal thread M16 × 1.5

Main performance indicators of ZZYP self regulating valve:

Control accuracy%

±8

Allow leakage leakage

Hard seal (L/H)

Single seat (Class IV): ≤ 10-4 Valve rated capacity: Double seat, socket (Class II), ≤ 5 × 10-3 × Valve rated capacity

Soft seal (ml/min)

DN(mm)

twenty

twenty-five

thirty-two

forty

fifty

sixty-five

eighty

one hundred

one hundred and twenty-five

one hundred and fifty

two hundred

zero point one five

zero point three

zero point four five

zero point six

zero point nine

one point seven

four

six point seven five