𝐖𝐡𝐚𝐭 𝐚𝐫𝐞 𝐓𝐚𝐧𝐤 𝐁𝐫𝐞𝐚𝐭𝐡𝐞𝐫 𝐕𝐚𝐥𝐯𝐞𝐬?

𝐖𝐡𝐚𝐭 𝐚𝐫𝐞 𝐓𝐚𝐧𝐤 𝐁𝐫𝐞𝐚𝐭𝐡𝐞𝐫 𝐕𝐚𝐥𝐯𝐞𝐬?

• Breather valves (vent valves) maintain safe pressure in storage tanks.
• Allow air in/out to regulate pressure/vacuum.

𝗜𝗺𝗽𝗼𝗿𝘁𝗮𝗻𝗰𝗲:
• Safety - Prevent catastrophic failures.
• Product Quality - Minimize contamination.
• Efficiency - Extend tank lifespan, reduce maintenance.

𝗧𝘆𝗽𝗲𝘀:
1. 𝙋𝙧𝙚𝙨𝙨𝙪𝙧𝙚-𝙊𝙣𝙡𝙮
  • Release excess pressure
  • Used for non-volatile liquids

2. 𝙑𝙖𝙘𝙪𝙪𝙢-𝙊𝙣𝙡𝙮
  • Allow air in during vacuum
  • Prevent implosion/damage

3. 𝙒𝙚𝙞𝙜𝙝𝙩-𝙇𝙤𝙖𝙙𝙚𝙙
  • Use adjustable weights to open/close
  • Reliable, adjustable

4. 𝙋𝙞𝙡𝙤𝙩-𝙊𝙥𝙚𝙧𝙖𝙩𝙚𝙙
  • Use pilot system for precise control
  • Rapid response, complex systems

5. 𝙋𝙧𝙚𝙨𝙨𝙪𝙧𝙚 & 𝙑𝙖𝙘𝙪𝙪𝙢
  • Handle over/under pressure
  • Used for various applications

Why Line Blinding?

 Typical circumstances requiring absolute shutoff include:

• Protection of the health and safety of personnel

• Avoidance of product contamination

• Control of products flowing through manifolds or common pipelines

It is well recognized that many conventional types of valves may develop leaks. Causes of leaks include age, misuse, erosion and distortion.  These valves cannot be guaranteed to provide absolute shutoff in the line. Therefore, it is necessary to close off or blind the pipeline by other means.

Advantages of Line Blind Valves

 Where blinding is a frequent requirement and safety is of primary concern,Line Blind Valves are essential.

• Positive, permanent shutoff

When the blank end of the spectacle plate is clamped in position, product cannot leak to the downstream side of the line.

• Visible shutoff

The reverse end of the spectacle plate is visible outside the valve body, providing a positive visual indication of its open or closed position.

• Fast, one person operation

Only one person is needed to operate most Hamer Line Blind Valves. Blinding takes only a few minutes with an operating bar and substantially reduces operating time and cost. Other methods generally take two to four pipefitters (depending on pipe size) 30 to 45 minutes for blinding a line.

• Complete range

The widest range of line blind valves is available for varied applications and includes models with enclosed spectacle plate chambers to prevent spillage in case the line was not totally drained when the spectacle plate is reversed.

• Long service life

Experience proves it. Hamer Line Blind Valves provide long, trouble-free service.

Parallel Disk – Gate Valve Disk

•designed to prevent valve binding due to thermal transients.

•used in both low and high pressure applications.