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manufacturer of industrial valves

Wafer-type ball valve KM 9107.X-AP-FB

Products >> Floating ball valves >> For common temperatures

NPS ½″ – NPS 10″, Class 150 – Class 1500

API standard, full bore, fire-safe


Wafer-type ball valves type KM 9107.X-AP-FB are isolating valves designed to fully open or close the service fluid flow. They are not designed to be used for throttling or regulating purposes. The scope of application of the ball valves depends directly on their materials and on the properties and temperature of the service fluid. The standard materials are specified in the datasheet. By agreement and based on service conditions, also other materials than those specified in the datasheet may be used.

The ball valves are designated for heating gases (e.g. natural gas, lighting gas, propane-butane mixture, biogas, coke-oven gas), water, steam (not exceeding +150°C), oxygen, and generally for both corrosive and non-corrosive liquids and gases without mechanical impurities. Service temperature range can be from −50°C to +200°C depending on combination of body material and sealing rings. Allowable service pressures are in compliance with the pressure-temperature ratings (graphs B2, S8, S9, S12).

Technical Description

Ball valve design meets the requirements of API 608 and API Spec 6D. The ball valve is with full bore and floating ball, and is fire resistant in accordance with API 607 (fire-safe). The stem design ensures that the stem can not be ejected from the valve body by pressure of the fluid (anti-blow-out stem), internal components are connected to provide conductivity and resistance to formation of electrostatic discharges (anti-static design).


  • hand lever
  • hand wheel with worm gear
  • pneumatic actuator
  • electric actuator

Dimensions of flanges for actuator installation are in accordance with ISO 5211. The actuator size depends on the maximum service pressure drop through the ball.

The method of operation is indicated by the third digit of the type designation, which is „0“ for lever and „3“ for actuator (e.g. KM 9137.X-AP-FB).

Functional safety

Ball valves meet requirements for functional safety SIL 2 according to EN 61508–1, 2.

Connection to Piping

Overall dimensions are shown in the datasheet. Dimensions according to standards:

  • connection according to ANSI B 16.5
  • dimension of ball bore according to API 608
  • end-to-end dimensions not standardized


According to API 598 or API Spec 6D – zero leakage. If required by the Customer, additional tests may be performed as well.

Installation, Service and Maintenance

The ball valves may be installed into the piping in any arbitrary position. They require no special adjustments or maintenance. They are operable at the full pressure drop corresponding to the pressure Class.

Optional Accessories, Adjustments and Services

  • heating jacket – for keeping the fluid liquid
  • lockable handle with a padlock – for locking opened / closed position of the valve
  • regulating orifice – for flow regulation depending on turning of lever
  • extended stem – e.g. for the reason of insulation of the valve and pipeline
  • up-stream vent hole – for balancing pressure into up-stream pipeline
  • limit switches
  • documentation according to EN 10204 3.1 or 3.2
  • special adjustments according to customer requests
  • valves for pressure Class 900, 1500
  • execution according to standard NACE MR 0175 or ISO 15156

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