API 608 Ball Valve

API 608 Ball valves are manufactured in accordance with API 608. The valve is configured in a forged bolted two-piece split-body design with a small diameter, suitable for medium/low pressure working conditions. Characterized by simple design, the valve seats are directly inserted into the body.
The upstream flow pressure pushes the free-floating ball against the downstream seat-the resulting compression provides a perfect leak-free sealing solution.
The stem is connected at the top of the ball and allowing the valve to open and close with a quarter-turn movement.
Material selection is fully customizable to meet the customer's project specifications and several unique features are available offering an enhanced technical solution suitable for aggressive offshore environment and corrosive and abrasive fluids.

VALVE DESIGN

Based on API 608

TEMPERATURE RANGE

-150 to 662°F (-101 to 350°C)

SIZE

NPS 1/2-6 (DN 15-150)

PRESSURE RATING

ASME 150 - ASME 2500

FACE-TO-FACE

As per API 608 standard

END CONNECTIONS

RF, RTJ as per B16.5 &B16.47
SW, Socket Welded as per B16.11

BODY DESIGN

Forged/casting bolted two-piece

SEAT DESIGN

Soft or metal seated with Hardfacing on ball and seats

FEATURES

Secondary seals in pure Graphite
Anti-Static Device
Anti Blow out stem
Bi-directional tight shut-off
Low fugitive emission stem packing available
O-ring /Lip seals and Graphite configuration

OPERATOR

Manual: wrench or Gear with padlocking

TESTING & CERTIFICATIONS

Compliance with API 608 & ISO 5208 & API 598 inspection and testing
Fire safe and fire tested as per API 6FA/ 607
SIL 3 Certification as per IEC61508
Fugitive Emission as per ISO15848
PED 2014/68/UE

What are the installation steps of floating ball valves?

·The steps to install floating ball valves can be summarized into the following clear steps, while referring to the relevant numbers and information in multiple articles:

·1. Preparation

·Confirm valve size and material: Select the appropriate valve type and ensure that the valve size matches the pipe size.

·Prepare tools and accessories: Prepare necessary installation tools, such as wrenches, screwdrivers, gaskets, etc.

·Check the installation location: Determine the installation location, ensure that the location is convenient for maintenance and inspection, and has sufficient height above the water surface.

·2. Installation location selection

·Easy to maintain and inspect: Select a location that is easy to access and operate for future maintenance and inspection.

·Sufficient height above the water surface: Ensure that the valve installation location has sufficient height to ensure normal operation of the valve.

·Avoid interference: Avoid setting any objects above the valve to avoid affecting the normal operation of the valve.

·3. Installation method

·Install the ball valve body:

·Insert the ball valve body into the pipe and fix it on the bracket.

·Tighten the screws to ensure that the ball valve body is stable.

·Install the float:

·Install the float on the water pipe bracket.

· Tie the float line to ensure that the float can move freely.

· Install the gasket and nut:

· Install the gasket to ensure the sealing performance.

· Install the nut and rotate it to ensure that the valve is in the closed position.

· Test the valve:

· Open the water valve and test whether the valve is unobstructed and whether water is leaking.

· If any problems are found, recheck all steps.

· IV. Precautions

· Avoid friction: When installing the ball valve body, pay attention to whether the valve rubs against the bracket or pipe.

· Tightening screw strength: When fixing the ball valve body, pay attention to the strength of the tightening screws to ensure that it is firmly fixed.

· Float movement: When installing the float, pay attention to the length of the float line to ensure that the float can move freely.

· Cleaning and treatment: Before installing the gasket and nut, clean and treat them to ensure the sealing performance.

· Follow the installation sequence: During the entire installation process, follow a certain installation sequence and standardized operation process to ensure the quality and effect of the installation.

· By following the above steps and precautions, you can ensure the correct installation of the floating ball valve, thereby ensuring the normal operation of the water pipe network and the effective control of the water level.

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