SELF-ACTUATED CONTROL VALVE

Body Form: Straight-through cast body
Plug Type: Non-balanced single seat plug
Nominal Diameter: DN15~300mm, NPS 1/2″~12″
Nominal Pressure: PN1.0~16.0MPa; CLASS 150~900LB
Applicable Temperature: −20°C ~ +350°C
Type of Connection: Flange
Flange Distance: Meet IEC 60534
Leakage Level: As per ASME B16.104
Set Value Deviation: ±8%
Actuator: Pneumatic actuator (film type, piston type)

Product Overview

The self-actuated control valve is designed with a modular structure, making installation, assembly, and maintenance simple while effectively reducing overall costs. It operates without an external power supply, using the process medium itself to achieve automatic regulation, ensuring reliable performance even during power failures.

This type of valve is widely used for precise control of pressure, temperature, and flow in industrial systems. It is especially suitable for applications involving reactive, easily oxidised, toxic, or explosive media, such as in storage tanks and process pipelines.

With stable operation, high safety, and low maintenance requirements, the self-actuated control valve provides an efficient and dependable solution for modern industrial process control.

Model Preparation

ZZY

Structural Style

Z series control
valve

P: Single-seat self-operatedcontrol valve

M: Sleeve self-operatedcontrol valve

Product Features

Simple calculation and selection;
Maintenance is simple and converuent;
Reasonably compact design, long life;
Valve diameter from DN15 to 300(1/2″ to 12″);
Pressure rating from PN1.0 to 16.0MPa (ANSI 150 to 900LB);
Choose from a wide variety range.

Installation Diagram of Self-Operated Temperature Control Valve

Specification Parameters

Overall dimensions and weight

Compression Type (B Type)

Nominal Diameter (DN)	15	20	25	32	40	50	65	80	100	125	150	200	250	300
L (PN16)	160	180	188	200	220	252	275	300	350	400	455	555	660	740
L (PN40)	160	180	188	200	220	252	275	310	370	410	475	600	670	750
L (PN64 / PN100)	202	206	210	220	251	290	315	341	398	452	511	610	752	819
H	495	495	502	514	517	522	600	605	653	708	770	785	877	990
A (Actuator Size)	Φ132, Φ196, Φ232, Φ282, Φ308
L1	233	233	233	332	332	373	373	552	673	980	900	1200	1270	1600
P ≥ (Min. Pressure)	45	45	70	102	140	185	185	325	425	550	660	900	1135	1350
Weight (kg)	26	26	26	36	37	42	42	90	115	130	145	180	200	250

Press Open Type (K Type)

Nominal Diameter (DN)	15	20	25	32	40	50	65	80	100	125	150	200	250	300
L (PN16)	160	180	188	200	220	252	275	300	350	400	455	555	660	740
L (PN40)	160	180	188	200	220	252	275	310	370	410	475	600	670	750
L (PN64 / PN100)	202	206	210	220	251	290	315	341	398	452	511	610	752	819
H	495	495	502	514	517	520	600	605	653	708	770	785	877	990
H1	83	83	83	93	95	110	128	140	160	215	230	268	385	420
A (Actuator Size)	Φ132, Φ196, Φ232, Φ282, Φ308
L1	233	233	233	332	332	373	373	552	673	980	900	1200	1270	1600
P ≥ (Min. Pressure)	45	45	70	102	140	185	185	325	425	550	660	900	1135	1350
Weight (kg)	26	26	26	36	37	42	42	90	115	130	145	180	200	250

Specification Applications

Petroleum and natural gas, environmental protection water treatment, bio pharmaceutical, chemical, electric power, food, paper, metallurgy mining, shipping and general industrial systems.

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