Ваш надежный партнер по высококачественным решениям в области клапанов

Клапан регулирования с верхним направлением и направляющей втулкой

Body Type: Straight-through type, angle type, jacketed insulation type
Plug Type: Multistage throttle spool
Nominal Diameter: DN15–300 mm; NPS 1/2″–12″
Nominal Pressure: PN0.6–2.5 MPa; Class 150 LB
Applicable Temperature: -30°C to +180°C (optional depending on working conditions)
Type of Connection: Flanged (RF face, FM face)
Flange Distance: According to IEC 60534; non-standard customization available
Gland Type: Bolt compression type
Sealing Gasket: Serrated metal gasket
Packing: PTFE, flexible graphite
Actuator: Pneumatic actuator, Electric actuator

Product Overview

The PTFE-Lined Corrosion-Resistant Regulating Valve is designed for precise control of highly corrosive media in demanding industrial environments. The valve features a fully PTFE-lined flow path, ensuring excellent resistance to chemical attack from acids, alkalis, and aggressive fluids such as hydrochloric acid, sulfuric acid, nitric acid, and hydrofluoric acid.

Manufactured using high-quality base materials and advanced compression molding technology, the internal lining provides strong anti-corrosion performance, long service life, and reliable sealing. The use of PTFE-lined corrugated sealing components further enhances durability and leakage resistance under harsh operating conditions.

This valve is widely used in chemical processing, pharmaceutical production, and other industries where corrosive, toxic, or volatile media require stable and accurate flow control for both gas and liquid applications.

Model Preparation

Code	Description
Z	Compression type
H	Pneumatic straight stroke
P	Standard single-seat regulating valve
F46	F46:FEP/ PFA:PFA

Product Features

The PTFE-Lined Corrosion-Resistant Regulating Valve features a fully fluorine-lined structure on the valve body and internal components, effectively preventing metal corrosion caused by aggressive media. The inner cavity adopts a precision machined bonding design to ensure strong adhesion between the PTFE lining and the metal body, improving durability and extending service life. Equipped with F46 bellows sealing and PTFE packing, the valve provides reliable stem sealing and minimizes leakage risks. Its unbalanced, full-lining design makes it particularly suitable for low-pressure, normal-temperature applications involving highly corrosive fluids such as acids, alkalis, and chemical solutions.

Design features

Top-guided structure for improved stability and precise control
Fully PTFE-lined inner cavity and internal components for superior corrosion resistance
Optional PTFE bellows seal for enhanced sealing performance
Double sealing protection to effectively prevent leakage
Suitable for highly corrosive applications, including acids and alkalis

Structure and Materials

Carbon steel for body material*

No.	Part Name	Material
1	Body	WCB	LCB	WC9
2	Lining	F46 / F4	F46 / F4	F46 / F4
3	Plug	304	304	304
4	Gasket	PTFE	PTFE	PTFE
5	Screw Nut	304	304	304
6	Bonnet	WCB	LCB	WC9
7	Stem	304	304	304
8	Packing	PTFE	PTFE	PTFE
9	Lock Nut	304	304	304
10	Pressing Sleeve	WCB	LCB	WC9
11	Plate	WCB	LCB	WC9

No.	Part Name	Material
1	Body	WCB	LCB	WC9
2	Lining	F46 / F4	F46 / F4	F46 / F4
3	Plug	304	304	304
4	Gasket	PTFE	PTFE	PTFE
5	Screw Nut	304	304	304
6	Bonnet	WCB	LCB	WC9
7	Stem	304	304	304
8	Corrugated Pipe (Bellows)	PTFE	PTFE	PTFE
9	Packing	PTFE	PTFE	PTFE
10	Lock Nut	304	304	304
11	Pressing Sleeve	WCB	LCB	WC9
12	Plate	WCB	LCB	WC9

Note: 1.The above is of standard confguration structure; The valve seat is metal seal, and the valve seat is soft seal, grade Vl optional. lt can provide valve trim of spray welding cemented carbide. 2.The conventional materialis carbon steel and stainless steel, and the special material regulating valve products can be customized according to the user’s work conditions.

Can be Applied to Different Conditions of the Structure

Specification Parameters

Specifcation Parameter

Inside Diameter (mm)		20 (3/4″)	25 (1″)	32 (1-1/4″)	40 (1-1/2″)	50 (2″)	65 (2-1/2″)	80 (3″)	100 (4″)	125 (5″)	150 (6″)
Flow Coefficient (Kv) Percent		5	10	16	25	38	63	80	120	220	300
Pneumatic actuator		HA/B-23			HA/B-34				HA/B-45
Pneumatic actuator		350 cm²			560 cm²				950 cm²
Mode of Action	Spring Range	Allowable Differential Pressure (MPa)
Gas Opening	20–100 KPa	1.16	0.7	0.44	0.28	0.18	0.17	0.11	0.07	0.07	0.05
	40–200 KPa	3.34	2.14	1.31	0.84	0.53	0.51	0.33	0.21	0.22	0.15
	80–240 KPa	6.4	4.99	3.05	1.95	1.25	1.18	0.78	0.5	0.51	0.36
Gas Off	20–100 KPa	2.23	2.14	0.87	0.56	0.35	0.34	0.22	0.14	0.15	0.1
	40–200 KPa	6.4	6.4	5.86	2.93	2.3	2.21	1.43	0.91	0.95	0.66
	80–240 KPa	6.4	6.4	6.4	6.4	3.18	3.06	1.98	1.26	1.32	0.92
Electric Actuator		Allowable Differential Pressure (MPa)
Thrust(N)	800	2.38	1.52	–	–	–	–	–	–	–	–
	2000	4.77	3.05	1.86	1.19	0.76	–	–	–	–	–
	3000	–	–	2.79	1.79	1.14	–	–	–	–	–
	5000	–	–	4.66	2.98	1.91	1.13	0.6	0.47	–	–
	6500	–	–	–	–	–	1.35	0.8	0.57	0.39	0.26
	10000	–	–	–	–	–	–	–	–	0.61	0.42

Actuator parameters

Item	Pneumatic Diaphragm Actuator	Electronic Electric Actuator
Model	HA B22 – HAB56	3810L, RSL
Type	Multi-spring type	Intelligent integrated type
Purpose	Regulating, on/off control	Regulating
Drive	Air pressure (spring range):140 (20–100) kPaG240 (40–200) kPaG280 (80–240) kPaG	Power supply:AC 220V ±10% 50HzAC 380V ±10% 50Hz
Connection	Rc 1/4	Common type: 2-PF (G1/2″)Flameproof type: 2-PF (G3/4″)
Fail Action (Air Failure)	Air pressure increases → valve closes	Control signal increases → valve closes
Fail Action (Reverse)	Air pressure increases → valve opens	Control signal increases → valve opens
Control Signal	4–20 mA DC (with positioner)	Input/Output: 4–20 mA DC
Dead Band	≤ 1% FS (with positioner)	≤ 0.8% FS
Linearity	≤ 2% FS (with positioner)	≤ ±1% FS
Ambient Temperature	-10°C to +70°C	-10°C to +70°C
Surface Coating	Body: Black phosphating treatment Actuator: Acrylic polyurethane paint
Optional Accessories	Positioner, handwheel, solenoid valve, limit switch, lock-up valve	Heater

Model	Pneumatic film actuator	Electronic electric actuator
Form	ZH22~ZH56	3810L, RSL
Type	Multi spring	Intelligent integrated type
Purpose	Adjustment, switch	Regulating
Drive	Air pressure (spring range): 140 (20~100) KPa G 240 (40~200) KPa G 280 (80~240) KPa G	Power supply: AC 220 V ±10% 50Hz AC 380 V ±10% 50Hz
Joint	Rc 1/4	Common type: 2–PF(G1/2”) Flameproof type: 2–PF(G3/4”)
Positive Action	Air pressure increases to push the valve to close	Control signal increases to push the valve to close
Reaction	Air pressure increases to push the valve open	Control signal increases to push the valve open
Control Signal	4~20mA.DC (With positioner)	Input output 4~20mA.DC
Lag	≤1% FS (With positioner)	≤0.8% FS
Linearity	2% FS (With positioner)	≤±1% FS
Ambient Temperature	-10°C ~ +70°C
Surface Coating	Black phosphating treatment Actuator: Acrylic polyurethane paint
Optional Accessories	Optional accessories, Hand wheel, Magnetic valve, Travel switch, Lock up valve	Heater

Main Performance Parameters

Flow Characteristics	Equal percentage, Straight line
Adjustable Range	50:01
Rated Cv Value	Equal percentage: 10~1400 Straight line: 11~1500
Allowable Leakage	Hard seal: Level-IV (0.01% rated flow of valve) Soft seal: Level-V
Drive Mode	Pneumatic	Electric
Intrinsic Error (%)	±1.0	±1.0
Return Difference (%)	≤1.0	≤1.0
Dead Zone (%)	≤0.6	≤1.0
Constant Point Deviation (%)	±2.5	±2.5
Rated Stroke Deviation (%)	≤2.5	≤2.5

Connection Dimension of Pneumatic Control Valve

DN (mm)	20	25	32	40	50	65	80	100	125	150
DN (inch)	3/4″	1″	1-1/4″	1-1/2″	2″	2-1/2″	3″	4″	5″	6″
L	155	160	180	200	230	290	310	350	400	480
H	52.5	57.5	70	75	82.5	92.5	100	117	125	142
H1	132	132	158	170	179	214	221	234	270	294
H2	285	285	285	285	285	360	360	360	470	470
H3	336	338	402	402	405	627	628	635	698	702
H4	153	153	153	153	153	181	181	181	247	247
A	200	200	200	200	200	240	240	240	350	350
C	282	282	282	282	282	282	360	360	470	470

Connection Dimension of Electric Control Valve

DN (mm)	20	25	32	40	50	65	80	100	125	150
inch	3/4″	1″	1-1/4″	1-1/2″	2″	2-1/2″	3″	4″	5″	6″
L	155	160	180	200	230	290	310	350	400	480
H	52.5	57.5	70	75	82.5	92.5	100	110	125	142
H1	132	132	158	170	179	214	221	234	270	294
H2	373	373	456	456	538	538	548	548	725	725
H3	336	338	402	402	405	627	628	635	698	702
H4	88	88	88	88	88	95	95	95	95	110
A	225	225	225	255	255	255	255	255	310	310

Note: 1.The dimensions in the table are standard dimensions without accessories. The dimensions of accessories are calculated according to the actual configuration. 2.Due to continuous technical innovation and product improvement, the size may change. Please contact the technical department of our company for the latest information.

Specification Applications

Top-guided sleeve control valves are integral components in various industrial processes, offering precise flow regulation and exceptional stability across a wide range of applications.

Petrochemical and Chemical Industries

In the petrochemical and chemical sectors, these valves manage the flow of diverse liquid and gas media, ensuring accurate control in processes involving high temperatures and pressures. Their robust design and superior guiding capabilities make them suitable for handling aggressive and corrosive substances, maintaining process integrity and safety.

Oil and Gas Industry

Within the oil and gas industry, top-guided sleeve control valves are employed to regulate the flow of hydrocarbons and other fluids. Their ability to withstand high-pressure differentials and resist wear from abrasive media ensures reliable performance in upstream, midstream, and downstream operations.

Power Generation

In power plants, these valves control steam and water flow, contributing to efficient turbine operation and overall plant performance. Their precise modulation capabilities support optimal thermal management and energy output.

Water Treatment and Distribution

Top-guided sleeve control valves are utilized in water treatment facilities to manage flow rates and pressures, ensuring consistent water quality and distribution. Their design minimizes cavitation and erosion, extending valve lifespan and reducing maintenance requirements.

General Industrial Applications

Beyond these sectors, top-guided sleeve control valves find applications in various industrial processes requiring dependable flow control, such as pulp and paper manufacturing, food and beverage production, and pharmaceutical processing. Their versatility and reliability make them a preferred choice for maintaining process efficiency and product quality.