Agilent Acetylene regulator 81LA-510 99616800

The Agilent Acetylene Regulator 81LA-510 (Agilent P/N 99616800) is a dual‑stage, general‑purpose regulator designed specifically for acetylene service. It provides a steady, reduced delivery pressure from a cylinder for laboratory or industrial applications that require constant low pressure and high duty‑cycle operation. Distributor descriptions specify it is intended for acetylene gas only and is equipped with gauges and an outlet needle valve for local pressure control and monitoring.

Key Features:

• Maximum inlet pressure: 400 psig
• Maximum delivery pressure: 15 psi (delivery gauge 0–30 psi; cylinder gauge 0–400 psi)
• Dual‑stage design with neoprene diaphragms (1st and 2nd stages)
• Body/bonnet: chrome‑plated/forged brass; seats PTFE; seals neoprene
• Porting: 1/4" NPT female; left‑hand 9/16‑18 outlet connection (acetylene hose fitting)
• Flow capacity (Cv): 0.15; Operating temperature: -20°F to 140°F (-29°C to 60°C)

Advantages:

• Dual‑stage construction delivers stable, low delivery pressure under varying cylinder pressure for consistent performance.
• Acetylene‑specific materials and left‑hand outlet reduce risk of cross‑service use and compatibility issues.
• Integrated inlet and delivery gauges plus outlet needle valve allow easy local monitoring and fine adjustment.
• Robust chrome‑plated forged brass construction provides corrosion resistance and durability for demanding operating conditions.