Expanding Plug Valve

Design, dimensions and marking according to:

Design as per API 599 & API 6D

Face to face as per ANSI b16.10& API 6D

Flanged ended as per ANSI B16.5 / EN-1092-1

Construction:

3 Parts construction: body, lower plate, upper plate

Trunnion mounted

Antistatic design

Seating slips (slips are replaceable through the lower or upper plate)

Reduce bore or full bore

Low emission packing & gaskets according to ISO 15848-1

Features:

1. Double Block & Bleed and Double Isolation (according to API-6D/ISO14313)

The KFTE Expanding Plug Valve provides two seating surfaces, each of which, seal to both directions. When the valve is in closed position, each individual seal is fully isolating not allowing any leakage, either from downstream or upstream or from the body cavity. In case of body cavity overpressure, venting/bleeding is provided by a thermal relief. Therefore the downstream pipeline is fully isolated from upstream pressure without the need for pressure balancing

2. Innovative lower trunnion design

The KFTE Expanding Plug Valve has a special designed lower trunnion, which prevents accumulation of particles and dirt in the lower part of the valve body. This accumulation could otherwise cause malfunction of the plug-system.

3. Back seat design

In case of stem-leakage the special “back seat” design provides the possibility to re-adjust the packing-gland or add additional gland packing-rings during field operation.

4. Slips design

The special slip-design provides the KFTE Expanding Plug Valve a unique sealing-system. The primary seal is an elastomer which is fully vulcanized on to the metal. An additional safety seal is achieved by a metal-to-metal contact between the metal-slip and internal valve-body. The sealing and contact area of valve-body is fully ENP-coated ensuring a corrosion-free contact with the slips.

5. Body Bleed & Thermal Relief

The KFTE Expanding Plug Valve must always be bled in closed position. Bleed outlet should be plumbed for drainage to a reservoir. This system includes a thermal relief valve in order to relieve pressure build up which might occur in the body cavity from thermal expansion.