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Stainless Steel LH45X Pilot Operated Flow‑Limiting Check Valve Hydraulic Control Valve Slow Close Anti‑Water‑Hammer Valve For Water Pump Outlet

Stainless Steel LH45X Pilot Operated Flow‑Limiting Check Valve Hydraulic Control Valve Slow Close Anti‑Water‑Hammer Valve For Water Pump Outlet

The SK200X Adjustable Pressure Reducing Valve consists of a main valve, pilot
valve, needle valve, micro-filter, ball valve, pressure gauge and other components. During operation, once the outlet pressure is set, the valve can automatically maintain a constant outlet pressure.

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Product Description

Technical Parameters

1.Flanged connection shall comply with the standards GB/T 17241.1-2024 and GB/T 9124.1-2019.

2.Strength and sealing tests shall comply with the standard GB/T 13927-2022.

3.Relevant technical parameters are listed in Table 1, materials of main components in Table 2, overall dimensions in Table 3.

Table 1:Technical Parameters Table

PN

1.0MPa

1.6MPa

2.5MPa

Body Test

1.5MPa

2.4MPa

3.75MPa

Seal Test

1.1MPa

1.76MPa

2.75MPa

Temperature

0℃~80℃

Multiple Models Available

Self-actuated

Table 2:Main Component Materials

Part Name

Materials

Body,Bonnet,Disk

Stainless Steel

Spring

Stainless Steel

Stem,Fasteners

Stainless Steel

Sealing Ring

NBR/EPDM

ExternalConnecting Pipe

Stainless Steel/Copper Alloy

Table 3:Overall Dimensions mm								External Connecting Pipe StainlessSteel/CopperAlloy
DN	φD			φK			N-				L
	PN10	PN16	PN25	PN10	PN16	PN25	PN10		PN16	PN25
40	150			110			4-φ18				205±2
50	165			125			4-φ18				205±2
65	185			145			4-φ18			8-φ18	219±2
80	200			160			8-φ18				241±2
100	220		235	180		190	8-φ18			8-φ22	292±2
125	250		270	210		220	8-φ18			8-φ26	325±2
150	285		300	240		250	8-φ22			8-φ26	355±2
200	340		360	295		310	8-Φ22		12-Φ22	12-φ26	458±2
250	395	405	425	350	355	370	12-φ22		12-Φ26	12-φ30	530±2
300	445	460	485	400	410	430	12-φ22		12-Φ26	16-30	615±3

Precision Valve Manufacturing

Professional Valve Manufacturer | Integrated Manufacturing

Raw Material

We select high-quality raw materials according to product specifications and international standards. All incoming materials are carefully inspected to ensure chemical composition, mechanical properties and traceability.

Forging & Casting

Advanced forging and casting processes are used to produce strong and reliable valve bodies and components. Strict process control ensures uniform structure, dimensional accuracy and excellent mechanical performance.

CNC Machining

Our CNC machining equipment provides precise and consistent processing of valve components. Critical dimensions, threads and sealing surfaces are strictly controlled to ensure accurate assembly and reliable sealing performance.

Shot Blasting & Coating

Valve surfaces are professionally shot blasted to remove rust, scale and impurities. Protective coatings are then applied according to customer requirements, providing excellent corrosion resistance and a durable surface finish.

Pressure Testing

Every valve undergoes strict pressure testing before shipment. Body and seat tests are performed according to applicable standards and customer specifications to verify pressure resistance and sealing reliability.

Quality Inspection

Our quality control team conducts comprehensive inspections throughout the production process. Finished valves are checked for dimensions, appearance, materials, pressure performance and overall quality before final approval and shipment.