Pneumatic Thin Film Single Seat Regulating Valve for Steam Water Oil Gas Chemicals Process Control Suppliers and Manufacturers

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Pneumatic Thin Film Single Seat Regulating Valve

Pneumatic control: driven by a 20-100kPa air pressure signal, with fast response;

Precision adjustment: The single seat valve core achieves high sealing performance (leakage ≤ 0.01%), suitable for precise control of small flow rates;

Pressure resistant stability: The valve body material can be cast steel/stainless steel, with a pressure resistance of PN16-PN40;

Easy maintenance: The valve cover bolt connection design is convenient for disassembly and maintenance.

Suitable for fluid regulation in harsh working conditions such as chemical and petroleum industries.

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Strong adaptability to working conditions
Lightweight and long-lasting structure
High reliability and safety
High sealing and low leakage
Precise linear control

Strong adaptability to working conditions

Intelligent control compatible
01
The valve body material supports cast steel/stainless steel, with a pressure resistance of PN16-PN40;
02
Suitable for high viscosity, particle containing media (such as slurry, LNG), with strong wear resistance.

Lightweight and long-lasting structure

Lightweight and long-lasting structure
01
Multi spring actuator design is low and compact, reducing weight by more than 30%;
02
Metal bellows seal, titanium alloy valve body, etc. are optional, with a temperature resistance range of -270 ℃ to+650 ℃.

High reliability and safety

High reliability and safety
01
Fault safety mode: automatically reset by spring in case of gas loss (FC/FO mode), in compliance with SIL2/SIL3 safety level;
02
Intrinsic explosion-proof: Pneumatic drive with no risk of electric sparks, suitable for hazardous areas in Zone 0/Zone 1.

High sealing and low leakage

High sealing and low leakage
01
The single seat valve core structure achieves tight sealing, with a leakage rate of ≤ 0.01%, suitable for scenarios with strict leakage requirements;
02
The soft sealed double diaphragm design reduces medium pressure loss and has strong corrosion resistance.

Precise linear control

Precise linear control
01
The thin film actuator responds to pressure signals (20-100kPa), and the output thrust is linearly related to the signal, with an adjustment accuracy of ± 1%; Combined with equal percentage/linear valve core, it can accurately control small flow changes (such as 0.5% opening adjustment).

Main Component Materials

Valve body and valve seat	valve disc	valve stem
Ductile iron H200	brass	stainless steel

Performance Specifications & Dimensions

Nominal pressure PN

1.6/2.5/4.0/6.4/10.0
Shell F

P x 1.5
Sealing Pressure

P x 1.1
Medium

Water, steam, oil products
Temperature (℃)

Standard type -20~+200 ℃/Low temperature type -60 ℃~-196 ℃/Heat dissipation type -40 ℃~+450 ℃

Nominal Diameter DN(mm)	L		A	H1		H2	H3		H4		H5		C	H6	Weight (KG)
Nominal Diameter DN(mm)	1.6/4.0	6.3/10.0	A	1.6/4.0	6.3/10.0	H2	1.6/4.0	6.3/10.0	1.6/4.0	6.3/10.0	1.6/4.0	6.3/10.0	C	H6	1.6/4.0	6.3/10.0
20	150	230	285	126	138	271	286	298	286	298	43	49	220	180	21	24
25	160	230	285	126	138	271	286	298	286	298	48	54	220	180	22	25
32	180	260	285	134	142	297	302	310	302	310	57	61	220	180	24	30
40	200	260	285	157	165	297	325	333	325	333	66	70	220	180	32	42
50	230	300	285	167	187	297	335	345	335	345	80	84	220	180	38	50
65	290	340	360	199	204	375	437	442	437	442	92	97	265	240	62	78
80	310	380	360	214	219	375	452	457	452	457	100	105	265	240	67	82
100	350	430	360	229	240	375	467	478	467	478	120	125	265	240	83	102
125	400	500	470	263	280	455	524	541	524	541	134	138	315	304	132	170
150	480	550	470	293	300	455	554	561	554	561	156	163	315	304	160	190
200	600	650	470	358	364	455	619	625	619	625	199	206	315	304	245	285

Note:

1. The weight in the table is standard data without accessories, and side mounted handwheels can also be installed.

2. The distance between the valve body flange end faces can be manufactured according to user specified standards, such as ANSI, JIS, DIN, etc.

Note: The above data is for reference only. For details, please consult the company's sales department.

Valve Application

Oil & Gas Transportation

Oil and gas transportation involves multiple modes such as pipelines and ships, and is the core link of the energy supply chain.
Chemical Raw Material Control

The control of chemical raw materials covers the entire process of mining, storage, and production, ensuring safety and process stability.
High Temperature SteamPipeline in Power System

High temperature steam pipelines are the core of energy transmission in power systems, supporting the efficient operation of thermal and nuclear power plants.
Other Industries

Valves control fluids in multiple industries such as new energy and electronics, ensuring safe and efficient production.

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