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Actuated Tank Bottom Valve

vatac-valves company

Actuated Tank Bottom Valve

Country/Region China

Product Details

Vatac Valves (Quzhou) Corp is one of the best China actuated tank bottom valve manufacturers, welcome to wholesale cheap actuated tank bottom valve from our factory.

Actuated Tank Bottom Valve

Tank Bottom Valve

The Tank Bottom Diaphragm Valve is designed for use at the bottom of a tank or vessel to drain or sample while minimizing the interior sump and preventing any dead leg for bacteria or microorganism entrapment.

Specifications

Standard Sizes:

1/2"4" (DN 15100)

Materials:

316L Stainless Steel Bar Stock ASME SA-479

(UNS S31603), 1/2"4" (DN 15100)

Tank Connection:

The tank interface surface is designed for a weld attachment. However, ANSI flanges can be ordered upon special request.

Drain Port End Connections:

Standard outlet port is on a 30° angle. 45° angle is available upon special request.

Buttweld:

14, 16 Gauge O.D. Tubing, dependent on size.

Schedule 5, 10, and 40 Pipe

Quick Disconnect

Tri-Clover Tri-Clamp

Cherry Burrell S”, Q”, and I” line

Superior Stainless, Valex and G&H ferrules

Actuated Tank Bottom Valve

The Tank Bottom Valve is a pneumatically operated single seat valve, assembled at the bottom of tank to be used in diary, food processing, beverage, pharmaceutical and fine chemical industries.

Vatac range of Automatic Recirculation Valves has been design to give absolute reliability with maintenance requirements minimised. Each Vatac valve is designed specifically to suit the individual customers’ requirements. The range includes both ON/OFF and Modulation options with options available in Angle or Straightway pattern design. The Angle pattern valve has additional feature of not requiring during maintenance Shut Downs. By - Pass Configuration ON/OFF The Vatac ON/OFF Automatic Recirculation Valve is really a system which incorporates five functions in one:

Non-Return Valve: preventing reverse flow through the centrifugal pump via the main line

By-Pass Control Valve: protecting the pump from overheating by regulating a passage of fluid through the pump during START UP, SHUT DOWN and when the pump is run against a closed outlet.

Flow Sensing Capability: which actuates the by - pass control Valve

Pressure Reduction Nozzles: which dissipate the pressure energy, and allows the line fluid to be delivered to the by - pass system quietly and safely.

Non-Return Valve: preventing reverse flow through the centrifugal pump via the by pass line

Operation

When the pump is started the stopper initially remains closed, with the by - pass valve fully open. The by - pass is individually sized to pass a fixed minimum quantity and at the same time reduce the pump outlet pressure to lower figure as determined by the by - pass system configuration. The pressure reduction within the by - pass is achieved by passing the flow through a series of opposed orifices. As the pump delivery pressure increases the spring pre - load and any back pressure on the main valve outlet are overcome and stopper starts open.

The stopper is fitted with a parallel skirt which is designed to ensure a positive opening action; within the same action the by - pass valve closes. The positive closure ensures the by - pass valve is either fully open and never in a partially open position.

As the main flow continues to rise, so too does the stopper, until eventually normal running delivery is achieved. When the pump is shut down the reverse action takes place. To prevent slamming, the bottom spindle bush has been fitted with a damping device which comprises of an orifice through which the line fluid has to be ejected.

If at any point the pump is run against a close outlet, the by - pass valve remains fully open, thus ensuring minimum flow is always maintained.

Technical Specifications

-Size: DN/1” TO DN100/4”

-Temperature: 130°C

-Pressure: 10Bar

-Material: ASTM 304/1.4301, 316L/1.4404

-Gaskets: EPDM, FPM, HNBR, FDA177.2600

-Treatment: Ra<0.8um

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