The product
. The series 1600 allows single cage to six cage trim options. its cage-guided design eliminates plug vibration and provides smooth performance, Series-1600 offers a quick change design for easy maintenance. The multi caged design is best to control moderate & high pressure drop which may cause cavitation erosion, vibration & noise.
Benefits
- Eliminate cavitation
- Low noise
- Vibration free operation
- Controlled trim exit fluid velocity
- Improve reliability
- Wide control range ability
Constructional Drawing
| SR NO | PART NAME | MATERIAL |
| 01 | BODY | A 216 GR. WCB,WCC A 217WC6, WC9, A 351 CF8, CF8M A 351 CF3, CF3M, A 351 CN7M |
| 02 | BONNET | |
| 03 | PLUG | SS 316, SS 316 STELLITED, SS 420, 17-4 PH |
| 04 | STEM | SS 316 |
| 05 | SEAT | SS 316 SS 316 STELLITED SS 420 SS 316 +PTFE |
| 06 | CAGE | SS 316 + HARD CROME PLATED SS 420 |
| 07 | PACKING GLAND | SS 316 |
| 08 | BALANCE SEAL | GLASS-FILLED PTFE GRAPHITE |
| 09 | PACKING SPACER | SS 316 |
| 10 | BODY/ BONNET GASKET | SS + GRAPHITE |
| 11 | SEAT GASKET | SS + GRAPHITE PTFE, GRAPHITE |
| 12 | PACKING SET | PTFE (V-PACKING) GLASS-FILLED PTFE GRAPHITE |
Trim Option
S1600 Multistage Variable Resistance Trim
This specialised valve performs exceptionally well in severe service drop tends to be high in the controlling position but where high capacity through puts at low pressure drops are also required.
It offers a balance between cavitation protection and valve capacity in high-pressure, liquid letdown applications.
It is a well-suited option for applications with custom flow characteristics and custom capacity requirements combined with severe cavitation conditions caused by high-pressure drops
Cryogenic Sliding-Stem Control Valves
Cryogenic valves are globe-style, single-port, valves featuring stainless steel construction materials and extension bonnets. These cryogenic valves are designed to provide throttling or on-off control of liquids and gases at cryogenic temperatures as low as -198oC (-325o F) When required, these rugged valves can reliably provide tight shutoff for special applications within the chemical and hydrocarbon processing industries, such as certain liquified natural gas services. The high-capacity valves with pressure-balanced trim allow the use of smaller, lower-cost actuators, reducing installed costs in high-pressure and high-flow-rate applications.
Features
Cryogenic Spring-Loaded Seal Ring—The seal ring and associated valve parts in the valves are specifically designed and manufactured for excellent performance at low temperatures.
Stable Control—Rugged cage guiding in the valves stabilizes the valve plug at all points in its travel to reduce vibration, mechanical noise, and the need for hydraulic snubbers.
Cost Effective Operation and Economical Maintenance—Increased wear resistance of hardened stainless steel trim means long-lasting service. Balanced valve plug construction in valves permits use of smaller, lower-cost Dembla actuators.
Cryogenic Design Features—The stainless steel valve body and extension bonnet are designed to meet low temperature requirements. The unique metal-to-metal seat design provides repeatable tight shutoff, reducing maintenance costs.
Rugged Metal Seat—The metal-to-metal seat is designed and manufactured to provide long-lasting, reliable, tight shutoff at both ambient and cryogenic temperatures without the need for periodic lapping. This reduces the need for soft seats, even in applications with stringent shut off requirements.
Thoroughly Tested—Extensive cryogenic testing during the development of the valve design reduces the need for expensive cold testing for most applications, which results in quicker delivery and greater value.
Easy Maintenance—Quick-change trim, with a clamped-in seat ring, reduces the disassembly/ assembly time. The valve body can stay in the pipeline during removal of trim parts for inspection or maintenance.
Application
Typical LNG applications
1. Separator level control valve
2. Compressor anti surge control valve
3. Pressure throttling valve etc.
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