Double Block & Bleed Needle Valve, Cartridge & Right Angle Types – Technical Guide by Udhhyog

  For critical isolation and instrumentation applications, choosing the right needle valve configuration is vital. From double block & bleed (DBB) systems to cartridge and right-angle types, each design offers distinct flow control benefits.

As Delhi’s trusted industrial valve supplier, Udhhyog brings you a technical overview of premium needle valve types used across hydraulic, chemical, and high-pressure systems.

1. Double Block & Bleed Needle Valve (DBB)

A Double Block & Bleed (DBB) valve provides two isolation barriers and a bleed outlet in one compact body. This allows safe maintenance and testing without shutting down the full line.

✅ Features:

• Two isolation needles + 1 bleed port

• Available in 2-valve and 3-valve configurations

• Leak-proof construction with PTFE/metal seat

🔧 Applications:

• Instrumentation lines

• Chemical dosing

• Oil & gas pressure monitoring

• Bypass systems in refineries

🔩 Materials & Ratings:

• SS 304 / SS 316L / Monel / Duplex

• Threaded, flanged or socket weld ends

• Pressure: Up to 10,000 PSI

2. Cartridge Type Needle Valve

Cartridge needle valves are compact flow control units designed to be directly inserted into hydraulic manifolds or blocks.

✅ Features:

• Minimal footprint

• Easy removal and replacement

• No external body – fits within a port

🔧 Applications:

• Hydraulic power packs

• Compact industrial equipment

• Test benches

🔩 Specs:

• Sizes: ¼” to 1”

• Pressure: Up to 5000 PSI

• Material: MS / SS 304 / SS 316

3. Right Angle Needle Valve

Right-angle needle valves are L-shaped devices ideal for corner-mounted flow systems or limited space setups.

✅ Features:

• 90° flow direction

• Saves space in control panels

• Easy hose routing

🔧 Applications:

• Pneumatic gas lines

• Instrument air manifolds

• Sampling systems

🔩 Technical Info:

• Size: ¼” to 1” BSP / NPT

• Pressure: 3000 – 6000 PSI

• End type: Male / Female threaded, Swagelok

Why Choose Udhhyog for Specialized Needle Valves?

🏭 Valve Configurations Available:

• DBB (2-valve / 3-valve / 5-valve types)

• Cartridge & block insert valves

• Right-angle and globe pattern valves

📦 Stock & Delivery:

• Fast dispatch from Delhi

• Available in bulk for OEMs and contractors

• Delivered to Punjab, Haryana, UP, Rajasthan, J&K within 1–3 days

💰 Best-in-Class Pricing:

• Direct-from-manufacturer rates

• GST billing & discounts for volume

✅ Quality Standards:

• Hydro-tested and certified

• Material Test Certificates (MTC) on request

• Compatible with ANSI, DIN, and BIS specifications

Udhhyog Needle Valve Price Highlights (2024)

Valve Type	Size	Material	Price Range (INR)
Double Block & Bleed Valve	½"–1"	SS 316	₹1200 – ₹2500
Cartridge Needle Valve	¼"–1"	SS/MS	₹200 – ₹600
Right Angle Needle Valve	¼"–½"	Brass/SS	₹220 – ₹450

📥 Request full PDF catalog: https://udhhyog.com/valves

FAQs

Q1: Do DBB needle valves come with vent plugs?
Yes, optional vent/bleed plugs or gauge ports available.

Q2: Can I get a cartridge valve with custom thread?
Yes, custom BSP/NPT threads available on bulk orders.

Q3: Are all valves tested before dispatch?
Absolutely. Hydro & air test conducted before shipping.

How to Order from Udhhyog

📞 Call: +91-XXXXXXXXXX
🌐 Website: https://udhhyog.com
📩 Email: sales@udhhyog.com / Contact Form