Mekaster Hydraulic Tensioners are used for assembly of bolted joints for critical applications where accurate and uniform stud loads are needed. The Hydraulic Tensioners offer reliable and accurate joints thus reducing leakage and extending maintenance period on account of following :
Accurate, uniform stud loading
No thread seizing or galling
Increased stud life
Enhance safety and time saving

The typica applications of tensioners are :
Flanges, Valves & pumps
Pressure Vessels
Heat Exchangers
Catalyst Reactors
Steam & Gas Turbines
Shaft Couplings
Diesel Engines
Heavy Equipments

Mekaster offers variable models where common load cell can handle multiple of fasting applications (metric as well as inch sizes) by just changing the Tensioner kit thus reducing cost considerably. The features of Mekaster Stud Tensioners are :
Single acting suitable for metric and imperial stud / bolts.
Hardened and tempered Alloy Steel Construction.
Anti extrusion Seals.
Low friction bearing surface.
Hard chrome plated piston rods.
All exposed surfaces hard chrome plated for corrosion protection.
Stroke indicator incorporated.
Side hydraulic port resulting in minimum installed height.
Self - sealing, quick connect disconnect couplings for fast ad leak proof connection.

Stud Tensioner Accessories

Pumps ( MHTHP - 702 ) - Mekaster hand pump assembly complete with pressure gauge ( 2000 bar face dial 4"), gauge adaptor, adaptor & coupler half (nipple) and having following specification :-
Max. working pressure - 1600 bar
Oil output volume per stroke (I Stage) - 32cc
Oil output volume per stroke (II Stage) - 1.6cc
Reservoir volume 8.2 Liters, usable oil volume 7.0 liters
Externally adjustable relief valve.
Lightweight design with minimum pumping effort required.
Approx weight 11.2 kg.
Spare Seal kit - MHTHP - 702/SK

MHTAP - 1301 - Mekaster air driven hydraulic pump complete with pressure gauge (2000 bar face dial 4"), gauge adaptor, adaptor and coupler half (nipple) and having following specification :
Max. working pressure - 1500 bar
Pressure Ratio - 1:350
Tank Capacity - 13 Liters
Max. air pressure required - 4:30 bar
Built in air safety valve
Complete with FRL (1/4" BSP air inlet port )
Approx weight 23 kg.
Spare Seal kit - MHTAP - 1301/SK

Distribution Blocks
MHTMB 12 - Mekaster 3 way distribution block ( for use of two tensioner at a time) with adaptors and coupler halves (nipple).
MHTMB 14 - Mekaster 5 way distribution block ( for use of four tensioner at a time) with adaptors and coupler halves (nipple).
MHTH 01 - Mekaster Hydraulic Hose Length 1 meter working pressure 1800 bar with coupler halves on both ends.
MHTH 02 - Mekaster Hydraulic Hose Length 2 meter working pressure 1800 bar with coupler halves on both ends.
MHTH 05 - Mekaster Hydraulic Hose Length 5 meter working pressure 1800 bar with coupler halves on both ends.

Note :
Pumps & Accessories for 1000 bar working pressure also available.
Pumps & Accessories for higher bar working pressure can also be supplied.

NOTE :
MHT-1LC/SK - Measter seal kit for load cell (MHT - 1 LC).
MHT-2LC/SK - Measter seal kit for load cell (MHT - 2 LC).
MHT-3LC/SK - Measter seal kit for load cell (MHT - 3 LC).
MHT-4LC/SK - Measter seal kit for load cell (MHT - 4 LC).
MHT-5LC/SK - Measter seal kit for load cell (MHT - 5 LC).
MHT-6LC/SK - Measter seal kit for load cell (MHT - 6 LC).
1000 bar tensioner also available with complete set of accessories.
Thread form/class, pitch & across flat to be specified while ordering.
Minimum 1x stud diameter thread projection required over Nut face.
End connection G 1/4" female (1/4" BSPP) with 120 deg. sealing cone.
For end of series application, and post script 'E' to load cell / tensioner part no.
For round nuts with holes for tommy bar, and post script 'R' to the part no.