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“Let our Valves create Maximum Value” —This is what the brand VMV stands for .

VMV Newton was founded in 1998 and committed to providing comprehensive solutions for steam and thermal energy systems.

Not just products service, but from the site survey, energy saving diagnosis, full range of product development, project landing, operation monitoring to from system solutions, all follow the principle of sustainable development.

We have also qualified with CE PED 0036, ISO9001, ISO14001, ISO45001,ISO15848,API624, EAC, TS A1, CCS certificates.

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The development model of VMV Newton has initially transformed from a “traditional valve product manufacturer” to a “comprehen solution for system” service provider, achieving the full process service of “on-ite inspection, scheme design, intelligent manufacturing of a full range of products, and installation and landing”.

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VA808-16/25/40 C Type full lift safety valve

Description

Description

The VA808-16/25/40 C type full lift safety valve is suitable for use in equipment and pipelines for media such as steam and air with a temperature≤350° C. It serves as an overpressure protection device. When the pressure inside the equipment and pipelines exceeds the allowable value, the safety valve will automatically open and then fully discharge. When the pressure drops to the specified value, the valve will automatically close to ensure the safe operation of the equipment and pipelines.

1.Manual wrench: convenient for regular calibration and emergency pressure relief.
2. Spring adjusting nut; the spring preload can be flexibly adjusted by turning the nut to achieve accurate calibration of set pressure.
3. Spring: cylindrical helical compression structure made of high-quality alloy spring steel, with stable stiffness and uniform elasticity.
4. Guide sleeve: precision guide structure to ensure smooth lifting of the disc and prevent jamming and deflection.
5. Blow down ring / disc holder; when medium is discharged, it acts on the blow down ring to generate upward thrust, enabling the disc to open fully rapidly.
6. Disc and seat: sealing faces are hard faced with cemented carbide, featuring high hardness, wear resistance, erosion resistance and high temperature resistance, maintaining stable sealing under long-term pressure.
7. Adjusting ring; precisely controls reseating pressure and opening- closing characteristics to optimize discharge performance.
8. Seat: nozzle-type design helps the disc open fully quickly, improves response speed, reduces flow resistance, and significantly enhances the discharge efficiency of the safety valve.

Nominal Diameter	Size (mm)
DNxDN'(mm)	\( d_o \)	L	L1	H≈
20×32	18	85	95	400
25×40	23	100	105	420
32×50	29	110	115	470
40×65	38	115	140	540
50×80	46	120	150	610
65×100	60	140	170	670
80×125	74	160	195	780
100×150	92	180	220	890
125×200	105	200	250	1030
150×250	125	225	285	1160

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VA808-16/25/40 C Type full lift safety valve