A Qinn bronze Y strainer is not a complete, interchangeable specification until you know which parts are packed with the selected model, how the unit connects, and whether its screen and materials suit the line. By the end, you can compare Q-107, Q-11, and Q-108, check installation fit, and write a purchase request that prevents missing accessories or incorrect variants.
Key takeaways
- Confirm model, connection type, dimensions and flow direction before ordering.
- Treat drain plugs, spare screens and gauge connections as quotation items.
- Match screen mesh to filtration needs without creating excessive pressure loss.
- Clean the screen after commissioning, then inspect it on a planned schedule.
What parts are included with Q-107, Q-11, and Q-108?
The normal physical assembly is a cast bronze body, removable cover, stainless-steel screen, cover seal, and the cover’s retaining arrangement. A drain or blowdown plug, spare gasket, pressure-gauge connection, and replacement screen are included only when the quotation or packing list names them.
| Model | Confirmed assembly detail | Confirm before acceptance |
|---|---|---|
| Q-107 | Cast bronze body, screwed cover, stainless-steel screen, and cover seal | Check cover threads, fasteners or plug arrangement, drain plug, spare gasket, pressure-gauge connection, and replacement-screen part number |
| Q-11 | Cast bronze body, screwed cover, stainless-steel screen, and cover seal | Check the same accessories and confirm the specified BSP-threaded connection |
| Q-108 | Cast bronze body, bolted removable cover, stainless-steel screen, and cover seal | Confirm cover bolts and nuts, drain or blowdown plug, spare gasket, pressure-gauge connection, and replacement screen |
A screwed cover on Q-107 or Q-11 is a procurement detail, not an interchangeable substitute for Q-108’s bolted cover. Do not infer a drain plug or spare screen from the words “bronze Y strainer.”
For qinn bronze y strainer details in mumbai, ask for these documents before opening the package:
- The quotation and packing list naming every accessory
- The dimensional drawing and exact model marking
- The screen material, opening, and replacement part number
- The pressure-temperature rating for the complete assembly
A published hydraulic test pressure proves test integrity; it is not the operating pressure. Steam-service information must be checked separately against the seal, screen, temperature, and pressure rating.
Which connection and dimensions confirm that the strainer will fit?
Fit is confirmed only when the exact connection and dimensions match the existing pipework, not when the nominal size matches. Request these bronze y strainer specifications for the selected variant: nominal size, actual connection size, face-to-face or end-to-end length, overall height and width, screen-chamber clearance, and shipping or installed weight.
| Model | Connection | Fit requirement |
|---|---|---|
| Q-107 | Screwed female BSPT ends | Match the male BSPT pipe thread, thread size, and sealant method |
| Q-11 | BSP-threaded ends | Confirm the stated BSP thread form and actual connection dimensions |
| Q-108 | BS 10 Table H flanged ends | Match flange standard, bolt-hole arrangement, gasket seating, and thickness |
BSP and NPT threads are not interchangeable, even at the same nominal size. Write “female BSPT,” “BSP,” or “NPT” in the purchase description; “threaded” is inadequate. Include solder or socket connection wording if that is the selected variant.
For Q-108, confirm the mating flange standard, bolt-hole pitch and number, gasket seating detail, and space to remove bolts and the screen chamber. A dimensional drawing, not a catalogue image, is the evidence for pipe alignment, independent support, valve clearance, and screen-removal access.
Ask for the drawing and weight for the exact model, size, rating, and connection. A listing that combines variants cannot prove that the delivered strainer will replace the Mumbai installation.
How do screen and material details affect filtration and service life?
The key bronze y strainer specifications are the screen opening, construction, open area, and material grade. “Non-magnetic stainless-steel screen” identifies neither particle retention nor pressure drop, so request:
- Screen grade, such as the specified stainless-steel alloy
- Perforated plate or woven-wire construction
- Nominal aperture or mesh and screen thickness
- Open-area ratio
- Replacement-screen part number
- Body grade, such as ASTM B62 or LG2 where applicable
- Cover, gasket, fastener, and drain-plug materials
| Screen choice | Filtration effect | Service consequence |
|---|---|---|
| Perforated plate | Retains particles near its stated hole size | Stronger and easier to clean, but coarse retention |
| Woven wire | Provides finer openings and defined mesh | More retention area, but wires can deform or clog |
| Finer opening | Stops smaller contaminants | Pressure drop rises faster and cleaning becomes frequent |
Match the opening to the downstream pump, control valve, steam trap, meter, or mechanical seal and to the contaminant load. A fine screen is not automatically better; it can starve a pump or make a control valve lose flow when debris accumulates.
Read pressure and temperature limits together. A hydraulic test pressure proves pressure integrity; it is not permission to operate at that value. The complete assembly takes its limit from the weakest component, including the gasket, screen, cover, and fasteners, and bronze ratings can fall as temperature rises.
How should you install and maintain a Qinn bronze Y strainer?
Make the supplied body a serviceable installation by matching its cast flow arrow to the pipe flow and keeping the angled screen chamber downward, or within the manufacturer’s permitted angle. On a vertical line, verify both flow direction and chamber position; an incorrect orientation can return debris to the pipe or make cleaning ineffective.
- Leave enough clearance below the chamber to remove the screen without dismantling the body. Support the pipe independently; do not use the strainer as a pipe support.
- For screwed connections, confirm BSP thread type and use a sealant rated for the fluid, pressure, and temperature. Do not force BSP threads into NPT fittings.
- For flanged connections, match the flange standard, gasket material, and seating face. Insert the correct bolts and tighten them gradually in a diagonal sequence to the project torque.
- Check that the cover seal, screen, fasteners, and drain plug are correctly seated before pressurising the line.
Review pressure, temperature, concentration, material compatibility, and galvanic contact for steam, hot water, compressed air, fuel, seawater, brackish water, chlorinated water, and chemical dosing. Bronze does not approve every chemical or petroleum service; inspect for dezincification and pitting where dissimilar metals meet.
A bronze strainer maintenance routine starts with isolation and depressurisation. Remove the screen, reverse-flush or brush it, inspect for broken wires and distorted perforations, replace the gasket, reassemble, and perform a leak test. Record upstream and downstream pressure: rising differential pressure reveals blockage before a pump starves or a control valve loses flow.
What should you put on the quotation and verify at delivery?
Put the line conditions and acceptance criteria on the quotation, not in a phone call. Specify the exact Qinn model, line size, fluid, operating pressure, design pressure, operating temperature, connection standard, face-to-face or end-to-end dimension, screen opening, body and screen materials, flow direction, drain requirement, test-certificate requirement, and quantities of spare screens and gaskets.
- Require the Qinn bronze y type strainer supplier to identify the selected variant on the quotation, dimensional drawing, nameplate, packing list, and test record.
- State whether a drain plug, spare gasket, fasteners, and replacement screen are included; do not treat them as standard accessories.
- Request the pressure-temperature rating for the complete assembly, not only a hydraulic test figure.
| Model | Connection marking | Cover and receiving check |
|---|---|---|
| Q-107 | Female BSPT to BS 21 | Confirm screwed cover, screen opening, seal, and plug |
| Q-11 | BSP-threaded ends to BS 21 | Confirm the quoted thread, screwed cover, materials, and accessories |
| Q-108 | Flanged to BS 10 Table H | Confirm bolted cover, flange drilling, gasket, bolts, and screen |
Before installation, match the delivered model and connection marking with the drawing, nameplate, packing list, and test record. Check the screen opening, material grade, cover arrangement, seal, fasteners, and drain plug against the quotation.
For Mumbai requirements, Navkar Enterprises -Texas Valves (India) can coordinate stocked equipment, technical clarification, and dispatch, but acceptance still depends on matching the documented model to the line and installation drawing.
Related products
 | Strainers Q-107- Qinn BRONZE ‘Y’ TYPE STRAINER PRODUCT DETAILS Y-TYPE BODY,SCREWED IN COVER WITH PERFORATED NON MAGNETIC S.S. View product → |
 | Strainers Q-11 – Qinn BRONZE Y-TYPE STRAINER PRODUCT DETAILS Y-TYPE BODY,SCREWED IN COVER WITH PERFORATED NON MAGNETIC S.S. View product → |
Frequently asked questions
What parts are included with Qinn Q-107, Q-11 and Q-108 strainers?
The normal assembly is a cast bronze body, removable cover, stainless-steel screen, cover seal and cover-retaining arrangement. A drain plug, blowdown plug, pressure-gauge connection or replacement screen is included only when named in the quotation or packing list.
Which details confirm that a Qinn bronze Y strainer will fit?
Check the exact model, connection type, nominal size, end-to-end dimensions, installation orientation, flow arrow and available clearance for removing the screen. Compare these details with the mating pipe or equipment drawing.
How do screen and material details affect service life?
Screen opening determines what particles the strainer retains and how quickly it loads. Stainless steel resists corrosion in many services, while bronze body compatibility still depends on the fluid, temperature, pressure and galvanic contact with connected metals.
How should you install and maintain a bronze Y strainer?
Install it with the flow arrow pointing downstream and the screen chamber positioned for safe removal and cleaning. Isolate and depressurise the line before opening the cover, inspect the screen and seal, clean blocked openings, and replace damaged parts.
What should you put on the quotation and verify at delivery?
List the model, size, connection standard, screen material and opening, body material, pressure and temperature requirements, included plugs or accessories, spare parts, quantity and documents. At delivery, compare the label, packing list, casting, screen, seal and visible damage with the order.
Related product
 | Strainers Q-108 – Qinn BRONZE ‘Y’ TYPE STRAINER PRODUCT DETAILS Y–TYPE BODY,BOLTED COVER WITH PERFORATED NON MAGNETIC S.S. View product → |
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