An energy efficient solenoid valve with electrical pulse operated solenoid coil, wherein the plunger of solenoid, moved to pulled position by momentary electric supply to coil of solenoid, is latched by one or more spherical balls, previously trapped in recess of hollow bush between tapered face of spool and wedge o...

A top entry trunnion mounted rotary ball valve suitable for safe in-line maintenance, comprising a main valve body having an upstream and a downstream ball seat assembly, the ball seat assemblies further comprising a soft insert seal, a ball seat, a seat retainer and a plurality of compression springs in between the...

An actuator having efficient energy accumulation with plurality of varying diameter compression springs, pre-compressed with individual or with collective telescopic arrangement. The energy accumulation system requires lesser accommodating volume and is advantageous due to being "buckle" free.

A rotary ball valve with an improved sealing arrangement, comprising of a valve body and a rotary ball, the rotary ball valve has a plurality of combination sealing arrangement comprising of a polarized combination cavity having a non-parallel slot and an extended groove, an add-on sealing ring and a compatible seat...

An efficient energy accumulation element comprising compression spring which uses end caps and flexible rope to pre-compress spring for using in actuators and other devices. The efficient energy accumulation element is independent of external surfaces or end construction of spring. The accumulation and release of en...

A door assembly with an integrated and modular hinge, a single door, a bi-folded door, a tri-folded door or a multi-folded door, having at least two identical multi-profiled pillars, used in a mirror formation, having plurality of flap gasket slot, a hinge barrel, panel gasket slot, at least two integrated and modul...

A rotary actuator with optimized spur pinion and rack, pinion and rack of dissimilar materials and rack of weaker material, positively corrected pinion has twelve involute teeth and negatively equally corrected rack has a entire working composite involute profile and elliptical nonworking root profile, thereby impro...

A ball valve (100) with an improved design of a seat ring (20), the ball valve (100) has a valve body (106) with a ball (102) disposed in a central passage (104) of the valve body (106). The ball (102) has a bore (103) through it for communicating with an inlet port (111) and an outlet port (112) of the present at e...

A hybrid rotary valve actuator which combines the benefits of a single-acting actuator and a double-acting actuator, comprises a primary cylinder that resembles the double-acting actuator without springs and two secondary cylinders adjacent on either side of the primary cylinder that resembles the single-acting actu...

A fluid flow control valve with swiveled & compensated stroke (100) comprising a solenoid coil assembly (60), a permanent magnet (181), a bridge mounted solenoid assembly (120), a compensated swivel fulcrum (150), a counterweight arrangement (160), and a base unit arrangement (180), wherein a slender cylindrical ro...

Twin poppet mechanism (100) of a valve positioner (101) with progressively reduced leakage, comprising a poppet valve assembly (150) comprising a swivel assembly (110) and a pair of poppet valve assembly (150), a poppet assembly (320) of the poppet valve assembly (150) has a conical tilting freedom (103) around its ...

A piston type hydro pneumatic accumulator with internal leak detection, having a gas chamber and a liquid chamber, the piston type hydro pneumatic accumulator comprising a cylindrical barrel, a floating piston, a gas end cover, a liquid end cover , a leakage detection construction having a first cylindrical channel ...