PKTBA-PUR-1, PKTBA-PUR-2

Portable machine for in situ repair of gate valves

Portable machine for repair of gate valve

PORTABLE MACHINE FOR IN SITU REPAIR OF GATE VALVES

PURPOSE:

Portable machine is designed for grinding and lapping the sealing surfaces of the gate valve housings and wedges without their dismantling from the pipeline.

MACHINED-SURFACE TYPES:

• sealing surfaces of the gate valve housings and wedges.

DN OF VALVE:

• 50…250 mm (2''...10'') (PKTBA-PUR-1);
• 200…600 mm
(8''...24'') (PKTBA-PUR-2).

COMPLETE SET:

• portable unit;
• professional pneumatic drive (Atlas Copco) and electric drive (Bosch);
• device for mounting on the middle flangee;
• device for machining the gate valve wedges;
• replaceable grinding and lapping discs;
• a set of self-adhesive grinding wheels;
• air preparation unit with a sleeve for compressed air supply;
• plastic case.

EQUIPMENT ADVANTAGES:

• Uniqueness for work with nonflanged valves (grinding and lapping of the sealing surfaces of the housings directly in the pipeline without cutting out the valves with further welded connection).
• Small weight of the unit makes it convenient for use in hard-to-reach locations.
• The quality is achieved due to design of the working head and the mandrel, which generate complex plane parallel motion of the tool across the processed surface.
• The set includes the wedge processing unit, replaceable discs for grinding and lapping, and a tool storage box.
• To ensure more reliable operation, the complete set of pneumatic drive includes air preparation unit.

TECHNICAL CHARACTERISTICS:

Parameter

PKTBA-PUR-1

PKTBA-PUR-2

Usable range, DN, mm ('')

50…250 (2''...10'')

200…600 (8''...24'')

Immersion depth - T, mm ('')

635 (25)

1000 (40)

Minimum size - А, mm ('')

40(2)

87(3)

Electric drive:

- power consumption, kW

1,2

1,5

- supply voltage, V

220 (110*)

220 (110*)

Pneumatic drive:

- power, kW

0,83

1,17

- air flow rate, m3/min (gl/min)

0,99 (262)

1,35 (357)

- compressed-air working pressure, bar (psi)

6,3(91)

Weight, kg (lbs):

- the heaviest mounted assembly

13,6(30)

22(49)

- set

50(110)

190(419)