R K Sons Enterprises

An 80 mm Non-Return Valve (NRV) is a type of check valve designed to allow fluid (liquid or gas) to flow in one direction only, preventing backflow. Here's a detailed description:

Technical Description: 80 mm Non-Return Valve

1. Size:

• Nominal Diameter: 80 mm (millimeters), which corresponds to 3 inches in imperial units.

2. Function:

• Purpose: Prevents reverse flow in a pipeline. The valve opens when fluid flows in the correct direction and closes automatically if the flow reverses.

3. Construction Types (Common):

• Swing Type: A hinged disc swings open with forward flow and closes against the seat with reverse flow.

• Lift Type: The disc or piston lifts vertically off the seat with forward flow and drops back when flow reverses.

• Wafer Type: Compact design, installed between flanges, suitable for space-saving installations.

• Ball Type: Uses a ball that moves away from the seat with forward flow and returns to block the seat when flow reverses.

4. Materials (Common Choices):

• Body: Cast iron, ductile iron, stainless steel, PVC, or bronze

• Disc/Ball: Stainless steel, rubber-coated metals, or composite materials

• Seat: Metal or soft seat (EPDM, NBR, PTFE for sealing)

20mm Ball Valve (commonly used in residential, commercial, and industrial piping systems):

🔧 20mm Ball Valve – Technical Specifications

1. Size:

• Nominal Diameter (DN): 20 mm

• Equivalent Pipe Size: ¾ inch (also referred to as ¾" ball valve)

2. Valve Type:

• Full Bore (Full Port): Minimal flow restriction

• Reduced Bore (Standard Port): Slight restriction in flow

3. End Connections:

• Threaded (BSP/NPT) – common in residential and general plumbing

• Socket Weld / Butt Weld – industrial applications

• Compression Fittings – for quick installation in plumbing

• Flanged – rare at this small size, used in specific industrial settings

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A Hose Clamp, also known as a Jubilee Clip or Jolly Clip, is a mechanical fastening device used to secure hoses over fittings such as barbs, nipples, or pipes. These clamps provide a tight, leak-proof seal, making them essential in plumbing, automotive, industrial, and agricultural applications.

A 25mm ball valve is a compact and reliable shut-off valve used to control the flow of liquids or gases in a piping system. Featuring a 25mm (1-inch) nominal bore, this valve operates using a rotating ball with a central hole that aligns with the flow when open and blocks it when turned 90 degrees. Ball valves are known for their tight sealing, low pressure drop, and quick on/off operation, making them ideal for a wide range of applications including plumbing, irrigation, industrial fluid systems, and HVAC. The 25mm size is commonly used in residential and commercial systems for moderate flow capacity.

A 200 mm Butterfly Valve is an industrial valve used to regulate or isolate fluid flow in pipelines. It operates via a rotating disc that opens, closes, or throttles flow. The "200 mm" refers to the nominal bore size, equivalent to 8 inches.

200 mm Butterfly Valve – Technical Overview Function:

• Controls the flow of liquids, gases, or slurries by rotating a disc 90°.

• Used for on/off or modulating (throttling) flow control.

A Stainless Steel (SS) Non-Return Valve allows fluid to flow in one direction only, preventing backflow in pipelines. Durable and corrosion-resistant, it’s ideal for water, gas, and chemical systems in industrial and commercial applications. Maintenance-free and reliable.

 

The dual Plate Check Valve is an all-purpose non return valve that is much stronger, lighter in weight and smaller in size compared to a conventional swing check valve or life check valve. The Double Plate Check Valve working employs two spring-loaded plates hinged on a central hinge pin.

H Guru Pressure Gauges – MS & SS Models

Overview:

H Guru Instruments, established in 1983, is a leading Indian manufacturer specializing in precision pressure and temperature measuring instruments. Their product range includes both Mild Steel (MS) and Stainless Steel (SS) pressure gauges, catering to various industrial applications.

MS Pressure Gauges:

• Dial Sizes: 100 mm and 150 mm

• Accuracy: ±2.5% of Full Scale Deflection (FSD)

• Case Material: Mild Steel with black finish

• Connection: 3/8" BSP(M)

• Internal Components: Brass

• Applications: Suitable for general industrial applications where corrosion resistance is not a primary concern

A mini ball valve is a compact, quarter-turn shut-off valve designed for use in tight spaces and small-scale piping systems. Despite its small size, it functions similarly to a standard ball valve, using a rotating ball with a hole through it to control the flow of fluids or gases. Mini ball valves are ideal for applications where space is limited and precise flow control is needed, such as in instrumentation panels, air and water lines, fuel systems, and laboratory setups.

Canvas Fire Hose Pipe RRL (Reinforced Rubber Lined) suitable for catalogs, product sheets, or procurement listings:

🔥 Canvas Fire Hose Pipe (RRL Type) – Summary Description

RRL (Reinforced Rubber Lined) Canvas Fire Hose is a high-performance fire hose designed for firefighting applications. It features a double-layered woven canvas jacket with a rubber lining that enhances durability, flexibility, and resistance to abrasion, heat, and chemicals.

✅ Key Features:

• Construction: Woven polyester/cotton canvas outer with internal synthetic rubber lining (RRL)

• Lining: Natural or synthetic rubber – ensures low friction loss and better water flow

• Size: Typically available in 63mm (2.5”), 38mm (1.5”), and other sizes

• Pressure Rating: Working pressure up to 14 bar; burst pressure up to 35 bar

• Length: Standard lengths of 15m, 18m, or 30m

• End Fittings: Coupled with ISI-marked instantaneous couplings (SS/GM/Aluminium)

• Compliance: IS 636 Type A/B (Indian Standard), or other international fire safety standards

The 12mm CI ball valve is a durable and efficient shut-off valve made from cast iron (CI), designed to control the flow of liquids or gases in piping systems with a nominal bore of 12mm (approximately 1/2 inch). Featuring a quarter-turn ball mechanism, it provides quick and reliable flow regulation with a tight seal, minimizing leakage. Cast iron construction offers excellent strength and durability, making it suitable for low to medium pressure applications.

A 10mm CI ball valve is a compact, robust shut-off valve designed for controlling the flow of fluids or gases in small-diameter pipelines. Constructed from cast iron (CI), this valve is engineered for durability and cost-effectiveness in low to moderate pressure applications. With a 10mm (3/8 inch) nominal bore, it uses a quarter-turn rotary ball mechanism that provides tight shut-off with minimal torque, ensuring reliable and leak-proof performance.