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KAI WEI XI CHAN PIN FEN LEI

ZTP Pneumatic Desuperheating and Pressure Reducing Valve
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Phone：+86（577）6730 7899
Mobile：+86 195 1816 9569
Fax：+86（577）6738 7099
Email：Lucas@kaiweixi.com
Address：No. 1, Linxia Road, Oubei Street, Yongjia County, Wenzhou City, Zhejiang Province,china
Website：https://www.kaiweixi.com

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ZTP Pneumatic Desuperheating and Pressure Reducing Valve

Model：ZTP-16C/ZTP-25C/ZTP-40C/ZTP-64C/ZTP-16P/ZTP-25P/ZTP-40P/ZTP-64P
Specification：DN50~500
Temperature： -30～560℃
Medium：Used for desuperheating and pressure reduction of waste heat in thermal power plants; one valve achieves dual functions

Pressure：PN1.6～6.4MPa
Connection method：Flange, Welding
Driving method：Pneumatic
Material：Carbon steel, stainless steel

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ZTP Pneumatic Desuperheating and Pressure Reducing ValveOverview

The ZTP pneumatic desuperheating and pressure reducing valve is a high-performance industrial control device that integrates steam pressure regulation and temperature control into a single unit. Specifically designed for waste heat recovery in thermal power plants, boiler steam systems, and various thermal engineering projects, it achieves both pressure reduction and water-spray cooling within a single valve body. The core principle involves a pneumatic actuator driving a multi-stage throttling plug for pressure reduction, combined with a built-in precision atomizing nozzle system that injects desuperheating water uniformly into the high-speed steam flow for rapid heat exchange. The ZTP series significantly simplifies pipeline layouts, reduces footprint, and minimizes heat loss. With its exceptional stability under high-temperature and high-pressure-drop conditions, this valve is a core execution element for ensuring the efficient operation of modern thermal networks.

Product Image of ZTP Pneumatic Desuperheating and Pressure Reducing Valve

ZTP Pneumatic Desuperheating and Pressure Reducing ValveCharacteristic

1.Dual-function integrated structure:Completes pressure reduction and desuperheating processes simultaneously within one valve body, effectively replacing the traditional combination of a pressure reducing valve and a separate desuperheater, greatly simplifying the process and reducing costs.
2.Multi-stage throttling technology:Internals utilize a multi-stage cage or cascaded structure to release high-pressure steam step-by-step, effectively suppressing flashing and cavitation while significantly reducing noise and vibration caused by high-velocity fluids.
3.Efficient and precise atomization:Features integrated high-performance stainless steel nozzles where water injection is dynamically compensated against steam flow. Precision spray angles ensure complete vaporization within a short distance, offering high temperature control accuracy without the risk of water droplet erosion.
4.Powerful pneumatic drive:Equipped with high-thrust multi-spring diaphragm or piston actuators for stable torque output. Paired with intelligent positioners, it achieves millisecond-level response and precise proportional regulation of process parameters.
5.High-temperature and pressure-resistant materials:Bodies are available in WCB, WC6, WC9, or stainless steel. Sealing surfaces are hard-faced with Stellite to ensure excellent erosion resistance under 560℃ and high-pressure fluctuations.
6.Intrinsic safety and fail-safe protection:Powered by clean compressed air, it provides natural explosion protection. Fail-safe modes (full open or full close) can be configured to ensure the thermal system remains in a safe state during air supply failure.
7.Precision guiding and stability:Utilizes an enhanced cage-guided structure with a large and precise guiding area. This ensures exact axial alignment of the plug throughout its stroke, resisting mechanical stress caused by fluid expansion.
8.Modular maintenance:The compact scientific design features modular internals. Inspection and replacement of the plug, nozzles, and seals can be completed from the top without removing the valve body from the pipeline, shortening downtime.

ZTP Pneumatic Desuperheating and Pressure Reducing Valvestructure principle

Structural Drawing of ZTP Pneumatic Desuperheating and Pressure Reducing Valve

List of Component Names and Materials

Item	Material Specification
Body Material	Carbon steel, stainless steel
Trim Material	A182 F6NM/F11/F22/F91/F92/FXM-19, A479 XM-19, Inconel 718

ZTP Pneumatic Desuperheating and Pressure Reducing Valvetechnology parameter

Performance Specification Sheet

Performance Specification Sheet
Nominal Pressure	1.6	2.5	4.0	6.4	MPa
Strength test pressure	2.4	3.8	6.0	9.6
Sealing test pressure	1.76	2.8	4.4	7.04
Applicable Temperature	-30～+560				℃

ZTP Pneumatic Desuperheating and Pressure Reducing Valvestandard size

Standard requirements for external dimensions

1. The structural length of the valve shall comply with the standard of GB/T12221

2. Connecting flanges according to GB/T17241.6 standard

Outline Drawing of ZTP Pneumatic Desuperheating and Pressure Reducing Valve

Outline dimension table（Unit：mm）

Nominal Diameter DN	L	L1	H (1.6-16 MPa)	H1 (1.6-16 MPa)	L2	H (1.6-16 MPa)	H1 (1.6-16 MPa)	H (1.6-16 MPa High Temp)	H1 (1.6-16 MPa High Temp)	H (1.6-16 MPa)	H1 (1.6-16 MPa)	H (1.6-16 MPa High Temp)	H1 (1.6-16 MPa High Temp)	Desuperheating Water Pipe Diameter CI
50	300	150	520	200	565	800	200	1030	200	800	260	1030	260	10
65	340	170	540	215	650	890	215	1040	215	890	285	1040	285	10
80	380	190	555	225	650	910	225	1060	225	910	305	1060	305	20
100	400	215	580	250	800	950	250	1100	250	950	330	1100	330	20
125	430	225	620	285	800	990	285	1140	285	990	380	1140	380	32
150	450	230	650	330	800	1090	330	1240	330	1090	410	1240	410	32
200	500	260	790	355	800	1160	355	1310	355	1160	435	1310	435	32
250	550	285	850	390	800	1230	390	1380	390	1230	470	1380	470	32
300	750	295	940	480	900	1370	480	1570	480	1370	580	1570	580	32
350	850	445	990	550	900	1450	550	1650	550	1450	660	1650	660	40
400	950	550	1120	700	1000	1570	700	1770	700	1570	800	1770	800	50
500	1130	680	1660	820	1000	1780	820	1980	820	-	-	-	-	-

Articles related to technology research and development

Dynamic balance electric control valve Patent

The utility model provides a dynamically balanced electric regulating valve, which includes a valve body, a valve cover, a valve rod, a valve core installed inside the valve body and connected to the valve rod, and an actuator installed on the valve cover and connected to the top end of the valve rod. The valve body is internally provided with a water inlet chamber, a valve cavity, and a water outlet chamber in order towards the direction of medium flow. The valve core is in the shape of a bucket with its opening facing downwards. The valve core is located inside the valve cavity and is used for connecting or cutting off between the water inlet chamber and the valve cavity. The top of the valve core is provided with a through port for medium circulation. Above the through port, there is a filter cover detachably connected to the valve core. The valve rod is provided with a step, and the outside of the step is covered with an elastic sleeve that fits it. The top of the filter cover is provided with a fixing hole that fits the elastic sleeve. This utility model can filter the medium, is simple to install, time-saving, labor-saving, and can reduce the medium pressure inside the valve body, extending the service life of the valve core.
1. A dynamic balance electric regulating valve, comprising a valve body, a valve cover, a valve rod, a valve core installed inside the valve body and connected to the valve rod, and an actuator installed on the valve cover and connected to the top end of the valve rod. Its characteristic lies in that the valve body is sequentially provided with an inlet chamber, a valve cavity, and an outlet chamber in the direction of medium flow. The valve core is in the shape of a bucket with an opening facing downwards. The valve core is located inside the valve cavity and is used for connecting or cutting off between the inlet chamber and the valve cavity. The top of the valve core is provided with a port for medium circulation. Above the port, there is a filter cover detachably connected to the valve core. The valve rod is provided with a step, and the outside of the step is covered with an elastic sleeve that fits it. The top of the filter cover is provided with a fixing hole that fits the elastic sleeve.
2. A dynamic balance electric regulating valve according to claim 1, characterized in that the bottom of the valve body is provided with a downward-opening groove, which is connected to the valve cavity through a through hole. A bottom cover connected to the valve body is arranged below the groove, and a pressure relief mechanism is arranged inside the groove. The pressure relief mechanism comprises a force-receiving member, a pressure plate connected to the force-receiving member, and a first spring arranged below the pressure plate and abutting against the bottom cover. The force-receiving member comprises a flow diversion block protruding from the through hole and a connecting rod connected to the flow diversion block, and the connecting rod passes through the pressure plate and is locked and fixed by a nut.
3. A dynamic balance electric regulating valve according to claim 2, characterized in that the top end of the pressure plate is pressed against the top wall of the groove, the bottom of the pressure plate is provided with a boss, and the top end of the first spring is sleeved on the boss.
4. A dynamic balance electric control valve according to claim 1, characterized in that the valve rod is arranged through the valve cover, a sealing cover threadedly connected to the valve cover is sleeved on the valve rod, a convex ring abutting against the valve cover is arranged on the outer circumferential wall of the sealing cover, a nut cover threadedly connected to the sealing cover is arranged at the connection between the sealing cover and the valve rod, an installation groove is arranged at the connection between the nut cover and the valve rod, a plurality of O-rings adapted to the valve rod are stacked in the installation groove, and a packing gland threadedly connected to the installation groove is arranged above the O-rings.
5. A dynamic balance electric control valve according to claim 4, characterized in that a second spring is arranged between the packing gland and the O-ring.
6. A dynamic balance electric control valve according to claim 5, characterized in that a sealing ring adapted to the valve rod is arranged inside the nut cover below the installation groove.
7. A dynamic balance electric control valve according to claim 6, characterized in that the bottom of the sealing cover is provided with a thrust ring that is threadedly connected to the sealing cover and abuts against the bottom end of the valve cover.
8. A dynamic balance electric regulating valve according to claim 1, characterized in that the top surface of the elastic sleeve is higher than the top surface of the filter cover.
9. A dynamic balance electric control valve according to claim 8, characterized in that the filter cover is connected to the valve core through threads.

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Product classification of Kaiweixi

KAI WEI XI CHAN PIN FEN LEI

ZTP Pneumatic Desuperheating and Pressure Reducing Valve

More Pneumatic Control Valve>>

More control valve>>

More valve>>

ZTP Pneumatic Desuperheating and Pressure Reducing Valve