Features

Anti-Cavitation ; Hardened material and fully characterized design to minimize cavitation damage caused by very high pressure drop.

One stage, two stages and multi-stages are available depend on process condition. Linear characteristic is most commonly used but EQ% is also available to meet desired flow characteristic.

Low-Noise ; Flexible media. High pressure drop or massive flow application would cause high noise and vibration due to excessive kinetic energy. ISA recommend to control this energy by velocity head concept. CCI design hole diameter, arrangement and number of stages accordingly. Linear characteristic is most commonly used but EQ% is also available to meet desired flow characteristic.

Tight shutoff ; A variety of shutoff classes from ANSI IV through VI are available to meet application requirements.

Sour Gas/ Corrosive Fluid Capable ; The wide choice body and trim materials allows the 840G to be applied to corrosive/ sour gas services with full compliance to NACE requirements.

Quality Assurance/ Quality Control ; All series 840H valves meet the ANSI B16.34 standard of "Valves-Flanged, Threaded, and Butt-welding End". This encompasses the dimensions, construction, testing and rating of all valves supplied. We also perform ANSI standard seat leakage and hydrostatic tests on every valve we build, and operability tests are run on each valve and actuator leaving our factory. Special tests are readily available to meet your specific project needs, including non-destructive testing of valve components and performance testing of actuator controls.

Specifications

The series 840H Drilled hole cage(Anti-cavitation) valve is specially designed to prevent cavitation damage and to minimize hydro dynamic noise and vibration in case of severe service liquid applications. Also the series 840H Drilled hole cage(Low-noise) valve is specially designed to reduce gaseous noise and vibration effectively in case of high pressure drop or massive flow application for flexible media like gas on steam. These special trim design has been proven in a wide variety of applications like Chemical, Power plant, Nuclear Industries, and wherever high performance and reliability is required.

- Valve size : NPS 1/2(DN 15) to NPS 20(DN 500)
- Pressure Rating : ANSI Class 150, 300, 600, 900, 1500 and 2500
- End Connections :
ASME B16.5, Flanged end, RF/RTJ
ASME B16.11, Socket Welding end
ASME B16.25, Butt-welding end

- Materials :
ASTM A216 WCB, WCC
ASTM A271 WC6, WC9
ASTM A351 CF8(M), CF3(M), CN7M
ASTM A352 Duplex
ASTM A352 LCB, LCC
Hastelloy -B/ C

- Trim Design :
Multi-path & Multi-stage design
Anti-cavitation, Low-Noise

- Seat Leakage : Standard -ANSI Class IV, Option -ANSI Class V or VI