Pneumatic Single-seat Control Valve

Nominal Diameter: DN20–DN300 (3/4″–12″)
Nominal Pressure: PN16–PN110 (Class150–Class600)
Manufacturing Standard: GB/T 4213-2008
Flange Standards: ASME B16.5, JIS B2220, EN1092-1, HG/T 20592, etc.
Body Materials: WCB, WC6, WC9, 304, 316L, Hastelloy C, Alloy20, 2205, 2507, 904L, 310S, TA2, etc.
Bonnet Types: Standard type, heat dissipation type, low-temperature type, bellows type
Flow Characteristics: Equal percentage, linear, quick opening
Process Media & Temperature: Water, neutral gas/liquid, alcohol, oil, fuel, steam, organic solvents, acid and alkaline solutions
applicable temperature range: -196°C ~ 1000°C

Product details

The Pneumatic Single-seat Control Valve is a mainstream final control valve for industrial process control. Driven by compressed air, the pneumatic actuator drives the valve stem and plug to move, adjusting the throttling clearance between the plug and seat to precisely regulate the flow rate, pressure, temperature and liquid level of pipeline media. Equipped with only one set of plug-seat sealing pair inside the valve body, it features a compact structure and excellent sealing performance, and is widely applied to working conditions requiring high-precision throttling and shutoff.

The complete pneumatic control valve consists of the following components:

Pneumatic Actuator: Diaphragm actuators with direct/reverse action are commonly used. Optional accessories include valve positioner, air filter pressure reducing valve, solenoid valve and limit switch. The actuator receives standard 4-20mA control signals and converts electrical signals into valve stroke for automatic regulation. A handwheel mechanism can be equipped to enable manual operation in case of failure.

Valve Body：The valve body adopts a straight-through cast design, allowing the process medium to flow directly through the valve with a streamlined flow path.

Valve Plug & Valve Seat：The valve adopts a single sealing pair design with a stable guiding structure, ensuring accurate positioning and reliable throttling performance.

Valve Stem & Packing System：The valve stem sealing system adopts high-performance packing materials:PTFE Flexible Packing，Graphite Packingto provide reliable sealing and prevent external leakage.

Valve Bonnet Options：Various bonnet designs are available according to operating conditions:Standard Bonnet，Extended Bonnet with Cooling Fins，Extended Low Temperature Bonnet，Bellows-Sealed Bonnet.

Medium flows in through the valve body inlet, passes through the throttling orifice between the plug and seat, and exits from the outlet. Regulation is realized by changing the flow area via the vertical movement of the plug.

Product Specifications

Control valves are used for precise regulation of pipeline flow, pressure, temperature and other process parameters. To ensure correct valve selection and optimal performance, please provide detailed technical data before placing an order. Non-standard sizes and customized designs can be manufactured according to customer requirements.（Unit: mm）

Pneumatic Control Valve 150LB-600LB

DN	NPS	Type/Class	Part No	L	H	H2	H3	D	K	d1	n-L	A	Plug size	Rated CV	Storke
15	0.5	XJHPBZ-150LB	XLXBZ150X05	184	139	436	297	90	60.3	35.1	4-16	290	8-15	0.01-4	16
20	0.75	XJHPBZ-150LB	XLXBZ150X075	184	139	436	297	100	69.9	42.9	4-16	290	20	6.3	16
25	1	XJHPBZ-150LB	XLXBZ150X1	184	139	436	297	110	79.4	50.8	4-16	290	25	10	16
32	1.25	XJHPBZ-150LB	XLXBZ150X125	205	150	476	326	115	88.9	63.5	4-16	290	32	17	16
40	1.5	XJHPBZ-150LB	XLXBZ150X15	222	155	481	326	125	98.4	73	4-16	290	40	24	25
50	2	XJHPBZ-150LB	XLXBZ150X2	254	161	487	326	150	120.7	91.9	4-18	290	50	44	25
65	2.5	XJHPBZ-150LB	XLXBZ150X25	276	220	637	417	180	139.7	104.6	4-18	365	65	68	40
80	3	XJHPBZ-150LB	XLXBZ150X3	298	234	651	417	190	152.4	127	4-18	365	80	99	40
100	4	XJHPBZ-150LB	XLXBZ150X4	352	242	659	417	230	190.5	157.2	8-18	365	100	175	40
125	5	XJHPBZ-150LB	XLXBZ150X5	400	286	811	525	255	215.9	185.7	8-22	470	125	275	60
150	6	XJHPBZ-150LB	XLXBZ150X6	451	345	870	525	280	241.3	215.9	8-22	470	150	360	60
200	8	XJHPBZ-150LB	XLXBZ150X8	600	355	880	525	345	298.5	269.7	8-22	470	200	640	60
250	10	XJHPBZ-150LB	XLXBZ150X10	650	447	1178	731	405	362	323.8	12-26	597	250	900	100
300	12	XJHPBZ-150LB	XLXBZ150X12	737	504	1238	731	485	431.8	381	12-26	597	300	1440	100
15	0.5	XJHPBZ-300LB	XLXBZ300X05	184	139	436	297	95	66.7	35.1	4-16	290	8-15	0.01-4	16
20	0.75	XJHPBZ-300LB	XLXBZ300X075	197	139	436	297	115	82.6	42.9	4-18	290	20	6.3	16
25	1	XJHPBZ-300LB	XLXBZ300X1	197	139	436	297	125	88.9	50.8	4-18	290	25	10	16
32	1.25	XJHPBZ-300LB	XLXBZ300X125	210	150	476	326	135	98.4	63.5	4-18	290	32	17	16
40	1.5	XJHPBZ-300LB	XLXBZ300X15	235	155	481	326	155	114.3	73	4-22	290	40	24	25
50	2	XJHPBZ-300LB	XLXBZ300X2	267	161	487	326	165	127	91.9	8-18	290	50	44	25
65	2.5	XJHPBZ-300LB	XLXBZ300X25	292	220	637	417	190	149.2	104.6	8-22	365	65	68	40
80	3	XJHPBZ-300LB	XLXBZ300X3	317	234	651	417	210	168.3	127	8-22	365	80	99	40
100	4	XJHPBZ-300LB	XLXBZ300X4	368	242	659	417	255	200	157.2	8-22	365	100	175	40
125	5	XJHPBZ-300LB	XLXBZ300X5	425	286	811	525	280	235	185.7	8-22	470	125	275	60
150	6	XJHPBZ-300LB	XLXBZ300X6	473	345	870	525	320	269.9	215.9	12-22	470	150	360	60
200	8	XJHPBZ-300LB	XLXBZ300X8	620	355	880	525	380	330.2	269.7	12-26	470	200	640	60
250	10	XJHPBZ-300LB	XLXBZ300X10	660	447	1178	731	445	387.4	323.8	16-30	597	250	900	100
300	12	XJHPBZ-300LB	XLXBZ300X12	775	504	1238	731	520	450.8	381	16-33	597	300	1440	100
15	0.5	XJHPBZ-600LB	XLXBZ600X05	184	139	436	297	95	66.7	35.1	4-16	290	8-15	0.01-4	16
20	0.75	XJHPBZ-600LB	XLXBZ600X075	206	139	436	297	115	82.6	42.9	4-18	290	20	6.3	16
25	1	XJHPBZ-600LB	XLXBZ600X1	210	139	436	297	125	88.9	50.8	4-18	290	25	10	16
32	1.25	XJHPBZ-600LB	XLXBZ600X125	220	150	476	326	135	98.4	63.5	4-18	290	32	17	16
40	1.5	XJHPBZ-600LB	XLXBZ600X15	251	155	481	326	155	114.3	73	4-22	290	40	24	25
50	2	XJHPBZ-600LB	XLXBZ600X2	286	161	487	326	165	127	91.9	8-18	290	50	44	25
65	2.5	XJHPBZ-600LB	XLXBZ600X25	311	220	637	417	190	149.2	104.6	8-22	365	65	68	40
80	3	XJHPBZ-600LB	XLXBZ600X3	337	234	651	417	210	168.3	127	8-22	365	80	99	40
100	4	XJHPBZ-600LB	XLXBZ600X4	394	242	659	417	275	215.9	157.2	8-26	365	100	175	40
125	5	XJHPBZ-600LB	XLXBZ600X5	457	286	811	525	330	266.7	185.7	8-30	470	125	275	60
150	6	XJHPBZ-600LB	XLXBZ600X6	508	345	870	525	355	292.1	215.9	12-30	470	150	360	60
200	8	XJHPBZ-600LB	XLXBZ600X8	650	355	880	525	420	349.2	269.7	12-33	470	200	640	60
250	10	XJHPBZ-600LB	XLXBZ600X10	670	447	1178	731	510	431.8	323.8	16-36	597	250	900	100
300	12	XJHPBZ-600LB	XLXBZ600X12	800	504	1238	731	560	489	381	20-36	597	300	1440	100

XLXV-001 Series Cage Single-Seat Control Valve：Adopting a top-guided unbalanced structure, this valve features high strength, heavy-load capacity, an S-shaped flow path, low pressure drop loss, large flow coefficient, wide adjustable range and high precision of flow characteristics.

This type of control valve is suitable for working conditions with relatively low differential pressure. It provides tight shutoff and is applicable to the regulation of medium flow rate or pipeline pressure.

The cage adopts a clamped seat design, which addresses the drawbacks of conventional screw-in seats, including difficult disassembly and excessive leakage, and extends service life. The flow-to-open configuration guides the medium to push the valve toward the open position, delivering excellent controllability at small openings and minimal distortion of flow characteristics. Special cages for noise reduction and anti-cavitation can be selected according to site process requirements.

Pneumatic Single-seat Control Valve

Product details

Product Specifications

Pneumatic Control Valve 150LB-600LB

Email

Whatsapp

Address