往复压缩机气阀介绍

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HI-TEMP环状阀(HPS)
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HI-TEMP网状阀 ( PF )
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POPPET阀
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Pressure Packings - Controlling Fugitive Emissions 密封环
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Rod Packings and Packing Rings密封环

DuraWearTM Performance Parts
Finish thickness厚度: 3 to 6 mils Surface finish表面光洁: 4 to 8 microinches Tensile bond结合强度: 10,000 psi (min.)68.9兆帕


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TC3 - Tungsten Carbide Piston Rod Coating 碳化钨喷涂

Today:

Operating in nearly 400 compressor cylinders worldwide 2 < M.W. <71 35 < Pd < 4,000 psig

327 < Speeds <1,000 rpm
Approaching 1 million hours of operation
steels: 50 HRC (Min.)

Heat treated alloy and
stainless steels: 22 < HRC < 40
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TC3 - Tungsten Carbide Piston Rod Coating 喷涂

Hardness:硬度
70 HRC (equiv.)

Precision-guided valve elements and springs Streamlined flow path with balanced seat, guard and lift areas optimize EFA; good tolerance for liquids and particulates in the gas
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HI-TEMP材料特点

重量轻 为金属阀片的六分之一,减少惯性力和冲击力及磨损, 使用寿命增 加.

耐腐蚀 几乎所有种类的工艺气体,包括100% H2S和低于3%的氯气或 HCL 100%HCO等各种酸性气体. 承受气体中液体和渣质 大升程 HI-TEMP阀片最大允许升程为 3. 56mm, 钢阀片最大允许升程为1.788mm, 可减少气体流经气阀的阻力,并提高使用寿命. 抗冲击疲劳性高 抗饶裂疲劳性高
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Compressor Valves - Process Gas “Tolerance Rating”气阀-对工艺气忍
耐度
Compressor Valve Type

Ranking Excellent顶好
Magnum (PEEK 子弹头）
Poppet
提动头(蘑菇状)
Good 好
Good好 Good好 Fair一般




Caution - all poppet style valves are not equal!
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Compressor Valve Technology: We’ve raised the standard
把气阀技术再度提高

Objectives:

To further improve the performance and reliability of compressor valves


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Registered D-R trademark Packing case designs:
• Meet (or exceeds) API 618 standards • Available in a variety of materials including cast iron, alloy steels, and stainless steels



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MagnumTM Compressor Valve
子弹头 气阀

Features:

Rigid and tough (low mass) non-metallic sealing element for maximum impact resistance
Minimal tensile loading in sealing elements Minimized fixed clearance Large (effective) flow area at minimum lift Available, low cost sealing element eases reconditioning and reduces inventory Can be used in conjunction with port, plug and finger type unloaders
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MagnumTM Compressor Valve

Magnum Valve Experience:

1995 - Valve design first conceptualized 1996 - Development and prototype testing 1997 - First field installations

Excellent sliding wear characteristics

Increased hardness Excellent chemical resistance to corrosives Can increase pressure packing service life by up to 2 - 3 times (especially in higher pressure applications)

Packing rings
• Available in a variety of blended thermoset and thermoplastic materials including PTFE, PEEK, Nylon and VESPEL.

OEM application expertise at competitive cost and delivery

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在以下操作条件保证材料特性
操作温度 环型阀 POPPET 218 C 218 C 操作压力 210Kg/m2 280Kg/m2 操作差压 105 Kg/m2 140Kg/m2
HI-TEMP 材料阀片的变形温度: 312 C HI-TEMP 材料阀片的最大允许连续操作温度: 260 C
To combine ideal design features of various valve types into a single design Extend application of a single design to a wider range of speeds and pressures Offer at a lower cost than existing ring, plate or poppet style valves
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Piston Rings and Rider Bands

DuraWearTM Performance Parts

Registered D-R trademark

Piston rings and rider bands
• Available in a variety of blended thermoset and thermoplastic materials including PTFE, PEEK, Nylon and VESPEL
5ห้องสมุดไป่ตู้



MagnumTM Compressor Valve
Gas flow Locating pins for precision alignment High-strength, low mass, PEEK sealing element
Advanced valve element geometry
Concentric Ring (Plate) 环状 Ported Plate Channel 槽式 片状带孔
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Process Poppet Valve Features Why it Works 菌状阀

Poppet element design - rigid & tough
Spring design - lower stresses than plate style valves Streamlined gas flow - allows gas contaminants to pass through; reduces plugging Reconditioning - simple and easy; minimizes rebuilding & assembly errors
Compressor Valves 气阀

Ranked #1 as primary cause of unscheduled
shutdowns

Some valve types / designs more tolerant than others
of actual service conditions

OEM application expertise at competitive cost and delivery
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Compressor Piston Rods活塞杆

Typical surface hardness in packing travel area(s):

Induction hardened alloy