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Rising Stem Needle Valve Manufacturer in India | Visible Flow Control by Perfect Engineers

Precision You Can See. Performance You Can Trust.

Perfect Engineers manufactures Rising Stem Needle Valves designed for critical applications that demand precise flow regulation, high visibility of valve status, and reliable sealing under pressure. These valves feature a linear rising stem design, making the opening/closing motion visually identifiable, ideal for manual control and safety-critical systems.

From instrumentation panels to high-pressure fluid circuits, our rising stem valves ensure accurate throttling, secure shut-off, and dependable long-term performance.

Table of Contents

Rising Stem Needle Valve Manufacturer in India | Visible Flow Control by Perfect Engineers

What is a Rising Stem Needle Valve?

A rising stem needle valve has a threaded stem that moves in and out of the valve body as it is operated, making the position of the valve visibly clear. This design helps operators easily determine whether the valve is fully open, partially throttled, or fully shut—without guesswork.

Perfect for manual control in critical systems, including gas regulation, steam lines, and chemical dosing.

Key Features

  1. Linear rising stem movement for visual position feedback
  2. Precise metering and leak-tight shut-off
  3. Pressure rating: up to 6000 PSI
  4. End connections: NPT / BSP / Compression / Flanged / SW / BW
  5. Sizes: ¼”, ⅜”, ½”, ¾”, 1”
  6. Materials: SS 316, SS 304, CS, Brass, Monel, Duplex, Hastelloy

Technical Specifications

Parameter Specification
Stem Design Rising Stem
Pressure Rating Up to 6000 PSI (custom up to 10,000 PSI)
Body Materials SS 316, SS 304, CS A105, Brass, Monel
Seat Options PTFE, PEEK, Graphite, Metal-to-Metal
Temperature Range -20°C to +450°C
End Connections BSP / NPT, Compression, Flanged, SW, BW
Operation Manual Handwheel or T-bar
Testing Hydrostatic & Pneumatic (API 598, EN 12266-1)
Certification ISO 9001:2015, EN 10204 3.1, IBR, CE

Benefits of Rising Stem Design

Feature Benefit
Visual Stem Position Clearly shows open/closed status
Accurate Throttling Fine linear adjustment for critical flow control
Manual Safety Avoids over-tightening or operator error
Durable Threads Reduces wear during repetitive use
Easy Maintenance Serviceable bonnet, stem, and packing arrangement

Contact Us for Pricing & OEM Support

Call

+91-9004860491

Website

www.perfectqrc.com

Applications of Rising Stem Needle Valves

  1. Analyzer & Gas Sampling Systems
  2. Steam Lines & Thermal Fluid Systems
  3. Laboratory Flow Control Panels
  4. Chemical Dosing Skids
  5. High-Pressure Hydraulic Test Benches
  6. Water Treatment & RO Flow Regulation
  7. Gas Distribution & Fire Safety Panels

Why Choose Perfect Engineers?

  • In-house machining and valve testing facility in Mumbai
  • Valves designed for precision, safety, and repeatability
  • Supplied with Hydro Test Report, MTC, CE, IBR, and third-party inspection
  • Export-ready: Laser marked, barcoded, and batch-coded for traceability
  • OEM branding, end connection customization, and urgent delivery support

FAQs – Integral Bonnet Needle Valves

We offer rising stem needle valves up to 6000 PSI, and higher pressure models up to 10,000 PSI on request.

Yes. With PTFE or metal seats, they are ideal for air, nitrogen, hydrogen, oxygen, and inert gases.

Yes. We offer rising stem needle valves with panel mounting nuts for instrumentation systems.

Common sizes are stocked. Custom materials and connections are shipped in 7–14 working days.

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