ENTECH Nozzle Check Valves Brochure Valve
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ENTECH Nozzle check valves 2 Content Introduction ��������������������������������������������������������������������������������������������������������������������������������������������������������������� 4 Features and applications����������������������������������������������������������������������������������������������������������������������������� 5 Design and product offerings: DRV-Z ����������������������������������������������������������������������������������������������� 6 Design and product offerings: DRV-BN������������������������������������������������������������������������������������������� 7 Quality assurance������������������������������������������������������������������������������������������������������������������������������������������������� 8 Dimensional data and weights����������������������������������������������������������������������������������������������������������������� 8 Flow performance data����������������������������������������������������������������������������������������������������������������������������������� 8 Materials of construction ���������������������������������������������������������������������������������������������������������������������������� 9 Design temperatures���������������������������������������������������������������������������������������������������������������������������������������� 9 Installation guidelines ���������������������������������������������������������������������������������������������������������������������������������� 10 Cameron services for valves and actuation������������������������������������������������������������������������������ 11 3 ENTECH Nozzle Check Valves Voghera, Italy Cameron is a leading provider of valves and measurement systems to the oil and gas industry. Our products are primarily used to control, direct, and measure the flow of oil and gas as it is moved from individual wellheads through flowlines, gathering lines, and transmission systems to refineries, petrochemical plants, and industrial centers for processing. 4 Cameron provides a wide range of valves for use in natural gas, liquefied natural gas (LNG), crude oil, and refined products transmission lines. The traditional CAMERON T30 Series* fully welded ball valve product line has been combined with the GROVE* valves, RING-O* subsea valves, TOM WHEATLEY* check valves, ENTECH* nozzle check valves, and TK* trunnionmounted ball valve product lines. This broad offering has strengthened our ability to serve as a single source for customer requirements. Cameron also provides critical service valves for refinery, chemical, and petrochemical processing businesses and for associated storage terminal applications, particularly through the ORBIT* rising stem ball valve and GENERAL* valve lines. These brands are complemented by WKM* valves, TBV* valves, and TEXSTEAM* plug valve products and considerably expand the scope of our product offerings. ENTECH* nozzle check valves are recognized for their use in pipelines, production, and process applications. The valves are applied primarily in gas compression applications. Nonslam valves prevent reverse flow, and their short stroke length reduces closing time and eliminates water hammer. The pressure loss with a nozzle check valve is minimal and has one of the highest fluid dynamic performances. Features and Applications Since 1935, ENTECH nozzle check valves have provided reliable backflow prevention for the oil, gas, water, and process industries. Beginning in 1972, they also served the nuclear industry with nozzle check valves for containment and commercial process. The ENTECH valve is designed to meet the criteria of conventional check valves by allowing forward flow under normal conditions, opening easily, firmly backseating at low velocity, and closing on reverse flow with minimal seat leakage. Easy stroking Very low flow is required to fully open, delivering highest fluid dynamic performance. Innovative nozzle design Streamlining the flow results in very low pressure drops and operating costs with no turbulence and vibrations. A very low flow velocity is needed to fully open the valve, and the stroke and closure time are short. Tight shutoff Metal-to-metal conical seating facilitates perfect self-alignment and minimizes maintenance costs. Extreme reliablility The SLS* spring-loaded lip seal disc responds quickly to flow variations. Rapid closing The valves help to prevent backflow to protect the pipe and critical equipment. High customizability The valve is designed to fit almost any application, with internals that can be replaced to suit future flow conditions, and aligned with other Cameron products. Applications ■■ Compressor discharge ■■ Natural gas refineries ■■ Pump discharge ■■ Critical equipment discharge ■■ Compressor and pump bypass ■■ Storage facilities ■■ Offshore operations ■■ Nuclear power plants The valves’ axial design helps to deliver streamlined flow, low pressure drops, and high-dynamic performances. With modular internal components, the valves can be customized to customer needs. 5 Design and Product Offerings: DRV-Z The DRV-Z nozzle check valve is a small-bore valve designed for use in piping systems from 1 to 14 in [25 to 350 mm] in diameter. This size range allows the use of a simple, streamlined, in-line check design that is quick to respond to changes in velocity. The DRV-Z Design also provides ■■ nonslam closure ■■ metal seating ■■ fast closing ■■ mounting in any orientation ■■ low pressure drop ■■ no scheduled maintenance ■■ tight shutoff. Sizes and ratings ■■ Size: 1 to 14 in [25 to 350 mm] ■■ ANSI/ASME Classes 150–2500 ■■ API 2000–10000 ■■ Face-to-face manufacturers standard ■■ ■■ 6 ANSI/ASME weld-end flanges (other flange-end configurations upon request) Other sizes and pressure classes considered upon request Design and Product Offerings: DRV-BN The DRV-BN nozzle check valve is a large-bore valve designed for compressor and pumping stations from 16 in [400 mm] in diameter and larger. In this size range, the ENTECH valve line incorporates ■■ ■■ ■■ annular ring design that reduces the weight of the disc to avoid any fatigue phenomena and significantly improve valve response time to pipeline flow changes centralized single-coil spring mechanism as the most consistent springforce design, which is stable and responds rapidly to flow variation flowspacer that allows the valve to be fully customizable to specific service and installation conditions and easily reconfigurable in case of potential changes of customer plant flow performances over the years. The DRV-BN design also provides ■■ nonslam closure ■■ metal seating ■■ fast closing ■■ spring-loaded disc that allows mounting in any orientation ■■ low pressure drop ■■ no scheduled maintenance ■■ tight shutoff. Sizes and ratings ■■ Size: 16 in [400 mm] and larger ■■ ANSI/ASME Classes 150–2500 ■■ Face-to-face manufacturers standard ■■ ■■ ANSI/ASME weld-end flanges (other flange-end configurations upon request) Other sizes and pressure classes considered upon request 7 Quality Assurance Cameron operates a high-level QC program to ensure all its products are designed and manufactured to the highest standards using the latest technology. The quality assurance program encompasses our entire operation, from order entry to final inspection and delivery. Our Lean Six Sigma manufacturing philosophy and the standard warranty, which covers the product for 12 months after installation or Dimensional Data and Weights DRV-Z flanged-end valves Valve Size NB DN 1 25 2 50 3 80 4 100 6 150 8 200 10 250 12 300 14 350 DRV-BN flanged-end valves 16 400 20 500 24 600 30 750 36 900 42 1,050 48 1,200 † Specifications and compliance ISO 9001:2008, API 6D/ISO 14313, ISO 19001, API 6DSS/ISO 14723, API 6A/ISO 10423, PED, GOST, and CRN. 150 Length, mm 100 120 180 240 350 450 500 600 700 Weight, kg 5 9 16 25 49 88 130 –† –† 300 Length, mm 100 120 180 240 350 450 500 600 700 Weight, kg 5 9 23 38 70 121 177 –† –† 600 Length, mm 100 120 180 240 350 450 500 600 700 Weight, kg 8 11 30 46 97 163 269 –† –† 900 Length, mm 100 200 180 240 350 450 500 600 700 Weight, kg 12 16 32 60 165 241 310 –† –† 500 625 745 930 1,190 1,308 1,485 385 665 1,060 2,040 3,285 –† –† 500 625 745 930 1,190 1,308 1,485 385 665 1,060 2,040 3,285 –† –† 500 625 745 930 1,190 1,308 1,485 550 905 1,450 2,640 4,340 –† –† 500 665 800 1,060 1,270 –† –† 640 1,210 2,165 3,855 6,430 –† –† 600 8,100 12,500 17,984 30,900 43,000 46,000 58,000 900 8,100 12,500 17,984 30,900 43,000 46,000 58,000 Information provided upon request. DRV-Z Flow Performance Data Size, in CV, galUS/min 150 1 20 2 84 3 227 4 366 6 881 8 1,692 10 2,762 12 3,043 14 6,003 8 18 months after shipment, whichever occurs first, assures that the design, materials, and workmanship of all ENTECH valves result in years of dependable operation. 300 20 84 227 366 881 1,692 2,762 3,043 6,003 600 20 84 227 366 881 1,692 2,762 3,043 6,003 900 20 84 227 366 881 1,692 2,762 3,043 5,952 DRV-BN Flow Performance Data Size, in CV, galUS/min 150 300 16 8,100 8,100 20 12,500 12,500 24 17,984 17,984 30 30,900 30,900 36 43,000 43,000 42 46,000 46,000 48 58,000 58,000 Materials of Construction 1 1 4 2 2 5 4 3 6 5 DRV-Z. 3 6 DRV-BN. Part 1 2 3 4 5 6 Description Body Nozzle Seat Disc Diffuser Spring Low-Temp. Carbon Steel/316SS Seats A352 LCC/A350 LF2 A352 LCC 316SS A351 CF8M A352 LCC X-750 Low-Temp. Carbon Steel/Inc625 Seats A352 LCC/A350 LF2 A352 LCC Inconel® 625 A351 CF8M A352 LCC X-750 Full Stainless Steel A351 CF8M/A182 F316 A351 CF8M Integral A351 CF8M A351 CF8M X-750 Full Duplex S31803/A182 F51 S31803 Integral S31803 S31803 X-750 Design temperatures Low-temperature carbon steel: −50 to 572 degF [−45 to 300 degC] Stainless steel: −320 to 572 degF [−196 to 300 degC] Duplex: −320 to 572 degF [−196 to 300 degC] All materials comply with NACE MR0175/ISO 15156 sour service requirements. Others materials are available upon request to meet specific service requirements. Applications with temperatures below −50 degF [−45 degC] or exceeding 350 degF [176 degC] are subject to engineering approval. 9 Installation Guidelines The nozzle check valve should be installed a minimum of five diameters, and preferably eight diameters, downstream of a flow impediment (valve, reducer, bend, etc.) to ensure a good flow pattern at the entry to the nozzle check valve. The nozzle check valve also should be installed at least three diameters upstream of a bend or reducer to avoid choked flow conditions, which can prevent the full opening of the check valve. The nozzle check valve can be installed on the upstream side of isolating valves. If the isolating valve is throttling, clearance as shown should be allowed to ensure full pressure recovery after the nozzle check valve. At least 5 and preferably 8 nominal pipe diameters 5–8∅ ≥ 3∅ At least 3 nominal pipe diameters ≥ 3∅ At least 3 nominal pipe diameters after valve to bend If isolating valve is throttling, check valves should be installed as shown. At least 2 nominal pipe diameters from valve to valve ≥ 2∅ The nozzle check valve can be installed closer to the inlet of the isolating valve if it is full port and fully open. All valve inquiries will require valve datasheets that provide minimum, normal, and maximum operating conditions. Valves must be sized to fully open at minimum operating conditions. The minimum operating conditions refer to what the lowest consistent flow rate will be for an extended period of time. Startup conditions should not be considered as minimum operating conditions. 10 Aftermarket Services for Valves and Actuation We build it. We back it. Cameron is well positioned to quickly and efficiently deliver total aftermarket support with unmatched OEM expertise. Our highly skilled engineers and technicians are available around the clock to respond to customer queries, troubleshoot problems, and offer reliable solutions. Easily accessible parts and spare valves ■■ OEM spare valves, actuators, and parts (including non-Cameron brands) ■■ Handling, storage, packaging, and delivery ■■ Dedicated stocking program Comprehensive aftermarket services portfolio ■■ Parts and spare valves ■■ Repair ■■ Field services ■■ Preventative maintenance ■■ Equipment testing and diagnostics ■■ Remanufacturing ■■ Asset preservation ■■ Customer property management ■■ Training and recertification services ■■ Warranty Customized total valve care programs ■■ Engineering consultancy ■■ Site management ■■ Flange management ■■ Startup and commissioning ■■ Spare parts and asset management ■■ Operational support 11 ENTECH cameron.slb.com/ENTECH *Mark of Schlumberger Other company, product, and service names are the properties of their respective owners. Copyright © 2016 Schlumberger. All rights reserved. 16-VL-185032
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