Gmd sons sluice valves lahore Pakistan

13/05/2026

13/04/2026

Our class PN 16 threaded SS or bronze valves And 220 volt Solonoid Valves

12/03/2026

Our Cast iron fl**ged Foot valves.Absoloute high class

18/02/2026

Pillar hydrant Mild steel

11/12/2025

*GMD TUTORIAL*
The image provided is an illustration detailing a segment of a Drainage Waste and Vent (DWV) plumbing system as it is typically installed within the framing of a wall and floor structure. It shows how a smaller drain line (likely from a sink or tub) connects to a larger main drain or stack.
Here is a detailed breakdown of the components and connections shown:

DETAILED DESCRIPTION OF THE PLUMBING DIAGRAM SEGMENT

1. STRUCTURAL CONTEXT
* Framing: The top of the image shows standard wood framing including a bottom plate resting on the floor and vertical studs forming a wall cavity.
* Piping Material: The main stack and large drain components appear to be illustrated in copper (or a copper-colored material) while the smaller connecting fittings are white plastic (likely PVC or ABS) which is common in DWV systems.

2. THE MAIN DRAIN/STACK (RIGHT SIDE)
* Large Vertical Pipe: A wide copper-colored pipe is shown coming up from the floor likely forming the main drain stack or a principal branch drain.
* Flange/Opening: The top of this pipe has a wide flared opening or fl**ge (partially labeled "Closet bend" or similar although not fully visible) indicating it is a connection point for a large fixture most commonly a toilet (water closet).
* Horizontal Line: The larger copper-colored pipe continues horizontally along the floor acting as the main drain line.

3. THE SMALLER DRAIN LINE (LEFT SIDE)
This section shows the connection of a smaller vertical drain pipe (likely from a fixture on an upper floor or a sink/tub drain) to the main horizontal drain:
* Vertical Pipe (Copper-Colored): This pipe runs vertically down through the bottom wood plate indicating it is connected to a fixture above.
* Elbow (White Fitting): A white plastic elbow connects the vertical pipe to the next fitting.
* Street 45 Y (White Fitting): This is a specific type of Y fitting.
* Y Fitting: Used to join two drain lines at an angle that encourages smooth flow (prevents clogging) typically a 45° angle.
* Street: Means one end of the fitting has a spigot (or male) end that is sized to fit *inside* another fitting's hub (female) end which saves space and reduces the number of connections.
* 45: Indicates the angle of the branch.
* 3x2 Reducing Y (Copper to Copper Connection):
* This is the final fitting that connects the smaller branch line (coming from the 45 Y) into the larger main horizontal drain pipe.
* Reducing: The label suggests this fitting reduces the diameter from the larger main drain pipe (e.g. 3 inch) down to the size of the branch pipe (e.g. 2 inch) where the connection is made. The drawing shows the branch entering the Y fitting which then connects to the horizontal line. This Y must be a Wye fitting (or combination fitting) to ensure the branch enters the main drain at a non-turbulent angle (sloped in the direction of flow).

4. COUPLINGS/CONNECTIONS
* Brass-Colored Rings: Multiple brass-colored rings are shown connecting sections of the copper-colored pipe. These represent couplings or hubs where one section of pipe is joined to another likely using a soldered connection for copper pipe or a solvent-welded connection for plastic pipe (if this were a conceptual drawing using copper color for all drains).

ILLUSTRATED PLUMBING PRINCIPLES
This diagram emphasizes the following essential DWV rules:
1. Directional Flow: All connections are made using Y or combination fittings (not sanitary T fittings on

10/12/2025

14" dia Class PN 10 Check Valves delivered today 10th December 2025

10/12/2025

14" Dia os&y Class 10 gate Valves delivered today 10th December 2025..

08/11/2025

Cast Iron/Ductile Iron Os&y class PN 20 gate valve. Test pressure 400 lbs PSI
Note* PN 20 gate valves are similar in dimensions to PN 16:Valves but are tested at 400lbs to 450lbs PSI

07/11/2025

Material ready for a world bank project in southern Punjab.Today 7th November 2025
" Ground Hydrants as per BSS 750"
"Padestal Pillar Fire hydrants as per BSS 336"

29/10/2025

OUR MONO BLOCK PUMPS 3" TO 8" SIZE