Shiv Shakti Machine Tools, flange manufacturer and trader, since 1996
Built for the pressure of oil and gas.
Flanges from ½" to 24", Class 150 to 2500, to ASME, EN and DIN standards.
Every bolt hole in its place.
Every type from ½" to 24" NB, drawn at real proportions from our dimension tables. [CONFIRM: every type in the grid]
Weld neck
Tapered hub, butt-welded to the pipe. For high pressure, high temperature and cyclic service.
Slip-on
Slides over the pipe and is fillet-welded inside and out. For lower-pressure lines.
Socket weld
The pipe sits in a socket and is fillet-welded outside. For small-bore, high-pressure lines.
Threaded
Screws onto NPT or BSP threaded pipe, with no welding.
Blind
Closes off a pipe end, valve or vessel opening, and comes off for inspection.
Lap joint
Turns freely on a stub end, for lines that are often taken apart.
Long weld neck
A weld neck with an extended neck, used as a nozzle on vessels and columns.
Plate
A flat plate welded to the pipe. For low-pressure water and utility lines.
Reducing
Its bore is smaller than its nominal size, to join pipes of different diameters.
Orifice
Fitted with pressure tappings and used in pairs with an orifice plate to measure flow.
Spectacle blind
A figure-8 plate that isolates or opens a line.
Made to your drawing
Special flanges to customer drawing. Attach your DWG, DXF or PDF to your enquiry.
Look up a size.
Choose a type, standard, class and size. The flange is drawn to that size, with its key dimensions in mm.
6" Class 150 weld neck
Key dimensions in mm, ASME B16.5
- O
- Flange diameter
- 280
- Tf
- Flange thickness
- 23.9
- X
- Hub diameter
- 192
- Ah
- Bevel end diameter
- 168.3
- B1
- Bore
- 154.1
- Y
- Length through hub
- 89
- R
- Raised face diameter
- 215.9
- Tr
- Raised face height
- 2
- W
- Bolt circle (PCD)
- 241.3
- d
- Bolt hole diameter
- 22.2
- n
- Number of holes
- 8
- kg
- Weight, approx.
- 11
Why buyers work with us
Only flanges, since 1996.
We don’t make elbows, tees or valves. Every hour of our work goes into flanges.
You deal with the owners.
A family business: the people who quote you are the people who make your flanges.
Traceable to the heat.
Every flange is marked with its heat number, matched to its 3.1 material certificate.
An ISO 9001:2015 quality system.
Our quality management system is certified for making, exporting and supplying carbon steel flanges.
Quotes within 48 hours.
Send your list and get prices and lead times back fast.
Third-party inspection welcome.
Your inspector, or an agency you choose, can check the flanges before they leave us.
From blank to bolted joint.
Eight steps from material to your site. Choose a step to see the flange at that stage.
4. Drilling
Bolt holes on the bolt circle.
- Drawing
- 6" Class 150 weld neck
- Stage
- Drilled
- Step
- 4 of 8
Where our flanges are used
Oil and gas
High-yield A694 flanges, F42 to F70, for transmission pipelines.
Refining and petrochemical
Weld neck flanges in A105N and alloy steels for process lines.
Power generation
Alloy steel F11 and F22 flanges for high-temperature steam lines.
Water and wastewater
Slip-on and plate flanges for low-pressure water and utility lines.
Chemical and fertiliser
LF2 low-temperature flanges for ammonia and other cold service.
General fabrication
Slip-on, blind and plate flanges for skids, tanks and pipe spools.
A family flange business in Rajkot.
Shiv Shakti Machine Tools has made and supplied pipe flanges from Rajkot since 1996. Mukeshbhai Savaliya started the business, and today his son, Dharmik Savaliya, works alongside him as head of sales. He’s usually the person you’ll speak to.
We make one thing: flanges. Weld neck, slip-on, blind, socket weld, threaded, lap joint, plate and specials, from ½" to 24", to ASME, EN and DIN standards, in carbon, low-temperature and alloy steels.
Since 1996, our flanges have gone into pipelines, plants and fabrication shops across India. Now we’re opening our order book to buyers around the world.
- The name
- In Sanskrit, shakti means strength: the one thing a flanged joint can never be short of.
- The place
- Our works are in the Shapar–Veraval industrial area of Rajkot, one of Gujarat’s busiest engineering clusters.
Vision
To be the flange maker buyers name on their orders, trusted in India and abroad because every flange matches its standard and every promise is kept.
Mission
- Make every flange to the standard ordered, and check it before it leaves us.
- Mark every flange so it can be traced to its heat and its material certificate.
- Answer every enquiry within 48 hours with a clear price and lead time.
- Earn the certifications our buyers rely on, and keep improving how we work.
- Build long partnerships, not one-off sales.
Send your flange list. We’ll send you a price.
We reply within 48 hours with prices and lead times.