Non-Return (NRV) Valves

Non-Return Valve (NRV)

Non-return (check) valves for preventing reverse flow in pump discharge, water mains, fire systems, and process lines. Swing, dual-plate, silent disc-lift configurations.

Technical data sheet

Non-Return Valve (NRV) — Swing / Dual-Plate / Disc Type

Non-return (check) valves engineered to prevent reverse flow in pump discharge, water mains, fire systems, and process lines. Swing, dual-plate (wafer), disc-lift (silent), and ball-check configurations.

Characteristics

Nominal size (DN)mm15 to 600
inch½ to 24
Pressure ratingPN10 / PN16 / PN25 / PN40 / ANSI 150 / ANSI 300
BodyCast iron / Ductile iron / Cast steel / Bronze / SS
DiscDI / SS 304 / SS 316 / Bronze
TypeSwing / Dual-plate (wafer) / Silent disc-lift / Ball-check
End connectionFlanged / Threaded / Wafer / Lug
Temperature°C-10 to +180 (metal-seated); -10 to +120 (resilient)
MountingHorizontal & vertical (upflow); orientation per type
StandardsIS 5312 / API 6D / EN 12334 / AWWA C508
ApplicationsUsePump discharge, Fire mains, Booster systems, Water mains, HVAC, Process, Steam

Material of Construction — Swing check valve

  • Body: Cast iron / Ductile iron / Cast steel
  • Disc: Cast iron / SS 304 / SS 316, EPDM/NBR-faced (optional)
  • Disc hinge: Stainless steel pin & bracket
  • Seat ring: Bronze / SS — replaceable
  • Body cover: Bolted, with gasket (CAF / spiral wound)

Material of Construction — Dual-plate / silent check

  • Body: Cast iron / Ductile iron / Cast steel / SS
  • Plates / disc: Stainless steel SS 304 / SS 316, dynamically balanced
  • Spring: Stainless steel SS 316 — fatigue resistant
  • Seat: EPDM / NBR / Viton (resilient) / metal-seated (high-temp)
  • Hinge / stop pins: Stainless steel
  • Body design: Wafer / lug — compact face-to-face per API 594

Salient Features

  • Swing type — large port, low pressure drop, ideal for water mains
  • Dual-plate (wafer) — compact, lightweight, fast closure
  • Silent disc-lift — low water hammer, ideal for pump discharge
  • Spring-assisted closure (silent / dual-plate) — works at low velocity
  • Resilient (rubber) seat for bubble-tight closure (water service)
  • Metal-to-metal seat for steam / high-temperature service
  • Replaceable seat & wear parts (where serviceable)
  • Compact wafer dimensions (per API 594 / EN 558)
  • Conforms to IS 5312 / API 6D / EN 12334
  • Suitable for horizontal or vertical (upflow) installation per type

Applications

  • Pump discharge — prevent reverse flow & water hammer
  • Fire-fighting mains (UL/FM listed variants)
  • Pressure booster pump system delivery
  • Municipal water supply mains
  • HVAC chilled water systems
  • Industrial process piping
  • Steam & condensate lines (metal-seated)
  • Sewage & wastewater (dual-plate variant)

For pump discharge service with potential water hammer, prefer silent disc-lift or dual-plate spring-assisted variants.

Install with arrow on body pointing in direction of flow; ensure adequate straight pipe (5×D) upstream.

Have a question? Drop us a line.

Share your duty point — head, flow, voltage, application — and our engineering team will match the right configuration.

Request quotationTalk to engineering

Applications

Project and industry usage examples.

  • Pump discharge
  • Fire mains
  • Booster systems
  • Water mains
  • HVAC

Key features

Built for export-grade reliability.

  • Swing / dual-plate / silent disc-lift / ball-check types
  • Spring-assisted closure (silent / dual-plate)
  • Resilient (rubber) seat for bubble-tight closure
  • Conforms to IS 5312 / API 6D / EN 12334
FAQs

Technical Specifications
Size rangeDN 15 to DN 600
Pressure ratingPN10 / PN16 / PN25 / PN40
BodyCI / DI / Cast steel / Bronze / SS
TypeSwing / Dual-plate / Silent disc / Ball-check
Datasheet

Configuration-specific datasheets and pump curves are shared on request with RFQ for tender and EPC submissions.

Technical content

non return valve manufacturer — technical overview

Overview

Non-Return Valve (NRV) from SUPERTECH WATER SOLUTION is engineered for B2B procurement where reliability, documentation, and lifecycle cost matter. This Non-Return (NRV) Valves portfolio is built for government departments, EPC contractors, infrastructure companies, industrial plants, agricultural duty cycles, water treatment operators, and export buyers. If you are searching for non return valve manufacturer, this page is designed to help you evaluate performance, installation fit, and compliance readiness. We support projects across India, Ahmedabad, Gujarat, UAE, Dubai, Saudi Arabia, Qatar, Oman, Kuwait, Bahrain, Africa.

Applications & industries served

Industrial procurement teams typically select Non-Return Valve (NRV) based on duty point, source conditions, water quality, voltage, and installation constraints. Common applications include Pump discharge, Fire mains, Booster systems, Water mains, HVAC. Industries served include infrastructure, municipal utilities, agriculture and irrigation, industrial manufacturing plants, builders and developers, and EPC project environments. For export projects, selection is aligned to spares availability, site serviceability, and documentation quality.

Key features designed for procurement confidence

SUPERTECH WATER SOLUTION focuses on consistent engineering fundamentals that matter in real installations: stable hydraulics, durable materials, robust electrical protection, and service-friendly assembly. Key highlights include: Swing / dual-plate / silent disc-lift / ball-check types; Spring-assisted closure (silent / dual-plate); Resilient (rubber) seat for bubble-tight closure; Conforms to IS 5312 / API 6D / EN 12334. Our export-focused approach emphasizes predictable performance and clearer documentation for faster tender evaluation and RFQ comparison.

Technical specifications (selection-ready)

Technical selection is most accurate when duty point is defined (head, discharge, flow rate) along with installation parameters. This product family supports configuration-based selection. Typical specification references for procurement may include power, head, capacity, pipe sizing, voltage range, material options, and protection requirements. If you need a customized datasheet for tender submission, request it via RFQ with your duty point and country.

Export-ready documentation and support

For GCC and Africa markets, procurement teams often require consistent data presentation and professional submission quality. We support RFQ workflows with technical tables, brochure packs, application notes, and documentation aligned to EPC and government procurement. This is built for buyers targeting keywords like NRV check valve, swing check valve, dual plate NRV. Our team can assist with product comparison, recommended configuration, and supply planning.

How to specify your requirement (RFQ template)

To receive the fastest and most accurate quotation, share a structured requirement. Minimum recommended RFQ fields: application (agriculture / industrial / utility), water source (borewell, openwell, sump), duty point (flow + head), discharge size, voltage and phase, expected daily operating hours, installation depth (if any), and destination country. For projects in UAE, Saudi Arabia, Qatar, Oman, Kuwait, Bahrain, and Africa, also share preferred packing, labeling, and required documentation format.

Quality philosophy (SUPERTECH KAIZEN)

SUPERTECH KAIZEN drives continuous improvement across manufacturing discipline, inspection checkpoints, and export packing. The result is procurement confidence: stable supply, consistent performance, and clearer technical communication. For tender environments, this reduces ambiguity and shortens evaluation time.

Serviceability, spares, and lifecycle value

Industrial buyers evaluate more than purchase price — they evaluate downtime risk and lifecycle support. We design product families with maintainability in mind: clear spares mapping, service access where practical, and compatibility across common configurations. When required, we can align spares packs for export projects and EPC commissioning timelines.

Procurement FAQ

If you are comparing suppliers for non return valve manufacturer, focus on documentation clarity, performance transparency, and after-sales readiness. Ask for the exact configuration matching your duty point, request a technical table for comparison, and ensure the supplier can support export packing and lead times. Our team supports these workflows for India and export markets.

Engineering notes 1

For Non-Return Valve (NRV) selection, align hydraulic performance with real site conditions: friction losses, suction characteristics (if applicable), voltage stability, and environmental factors. Export projects frequently benefit from a standardized documentation pack and a clear configuration naming structure for procurement teams. When targeting procurement teams in India, Ahmedabad, Gujarat, UAE, Dubai, Saudi Arabia, Qatar, Oman, include the duty point and intended application so the quotation is technically precise and directly comparable. This helps buyers searching for non return valve manufacturer and related keywords such as NRV check valve, swing check valve, dual plate NRV.

Engineering notes 2

For Non-Return Valve (NRV) selection, align hydraulic performance with real site conditions: friction losses, suction characteristics (if applicable), voltage stability, and environmental factors. Export projects frequently benefit from a standardized documentation pack and a clear configuration naming structure for procurement teams. When targeting procurement teams in India, Ahmedabad, Gujarat, UAE, Dubai, Saudi Arabia, Qatar, Oman, include the duty point and intended application so the quotation is technically precise and directly comparable. This helps buyers searching for non return valve manufacturer and related keywords such as NRV check valve, swing check valve, dual plate NRV.

Engineering notes 3

For Non-Return Valve (NRV) selection, align hydraulic performance with real site conditions: friction losses, suction characteristics (if applicable), voltage stability, and environmental factors. Export projects frequently benefit from a standardized documentation pack and a clear configuration naming structure for procurement teams. When targeting procurement teams in India, Ahmedabad, Gujarat, UAE, Dubai, Saudi Arabia, Qatar, Oman, include the duty point and intended application so the quotation is technically precise and directly comparable. This helps buyers searching for non return valve manufacturer and related keywords such as NRV check valve, swing check valve, dual plate NRV.

Engineering notes 4

For Non-Return Valve (NRV) selection, align hydraulic performance with real site conditions: friction losses, suction characteristics (if applicable), voltage stability, and environmental factors. Export projects frequently benefit from a standardized documentation pack and a clear configuration naming structure for procurement teams. When targeting procurement teams in India, Ahmedabad, Gujarat, UAE, Dubai, Saudi Arabia, Qatar, Oman, include the duty point and intended application so the quotation is technically precise and directly comparable. This helps buyers searching for non return valve manufacturer and related keywords such as NRV check valve, swing check valve, dual plate NRV.

Engineering notes 5

For Non-Return Valve (NRV) selection, align hydraulic performance with real site conditions: friction losses, suction characteristics (if applicable), voltage stability, and environmental factors. Export projects frequently benefit from a standardized documentation pack and a clear configuration naming structure for procurement teams. When targeting procurement teams in India, Ahmedabad, Gujarat, UAE, Dubai, Saudi Arabia, Qatar, Oman, include the duty point and intended application so the quotation is technically precise and directly comparable. This helps buyers searching for non return valve manufacturer and related keywords such as NRV check valve, swing check valve, dual plate NRV.

Engineering notes 6

For Non-Return Valve (NRV) selection, align hydraulic performance with real site conditions: friction losses, suction characteristics (if applicable), voltage stability, and environmental factors. Export projects frequently benefit from a standardized documentation pack and a clear configuration naming structure for procurement teams. When targeting procurement teams in India, Ahmedabad, Gujarat, UAE, Dubai, Saudi Arabia, Qatar, Oman, include the duty point and intended application so the quotation is technically precise and directly comparable. This helps buyers searching for non return valve manufacturer and related keywords such as NRV check valve, swing check valve, dual plate NRV.

Engineering notes 7

For Non-Return Valve (NRV) selection, align hydraulic performance with real site conditions: friction losses, suction characteristics (if applicable), voltage stability, and environmental factors. Export projects frequently benefit from a standardized documentation pack and a clear configuration naming structure for procurement teams. When targeting procurement teams in India, Ahmedabad, Gujarat, UAE, Dubai, Saudi Arabia, Qatar, Oman, include the duty point and intended application so the quotation is technically precise and directly comparable. This helps buyers searching for non return valve manufacturer and related keywords such as NRV check valve, swing check valve, dual plate NRV.

Engineering notes 8

For Non-Return Valve (NRV) selection, align hydraulic performance with real site conditions: friction losses, suction characteristics (if applicable), voltage stability, and environmental factors. Export projects frequently benefit from a standardized documentation pack and a clear configuration naming structure for procurement teams. When targeting procurement teams in India, Ahmedabad, Gujarat, UAE, Dubai, Saudi Arabia, Qatar, Oman, include the duty point and intended application so the quotation is technically precise and directly comparable. This helps buyers searching for non return valve manufacturer and related keywords such as NRV check valve, swing check valve, dual plate NRV.

RFQ