Pulsation Dampener 107.130.00-2 Parts

1

Pulsation Dampener

107.130.00-2

Carbon steel with anti-corrosion coating (shell); nitrile rubber (internal seal)

1. Long-term exposure to ultra-high pressure exceeding rated limits; 2. Corrosion from aggressive media; 3. Fatigue failure of internal components due to continuous pulsation.

1. Regularly check pressure gauge readings to keep within rated range; 2. Select compatible media per material specifications; 3. Conduct quarterly disassembly inspection for internal component wear.

1

Casing

107.130.01-1

High-strength carbon steel (S45C), precision machined

1. Impact damage from external mechanical collisions; 2. Corrosion at sealing surfaces due to improper maintenance; 3. Stress cracking from long-term pressure cycling.

1. Avoid mechanical impacts during installation and operation; 2. Clean and apply anti-corrosion grease to sealing surfaces after disassembly; 3. Inspect for cracks using non-destructive testing annually.

2

Cover

107.132.04

Carbon steel (Q235B) with zinc plating for rust resistance

1. Loosening of fasteners leading to uneven pressure and deformation; 2. Rust and corrosion from harsh environmental conditions; 3. Fatigue from repeated pressure changes.

1. Torque fasteners to specified values (refer to GB/T 1231); 2. Install in a dry, non-corrosive environment; 3. Replace if deformation or rust penetrates the base material.

1

Diaphragm

107.130.01.00-1

Fluororubber (FKM) for chemical resistance and high-pressure tolerance

1. Abrasion from solid particles in the fluid; 2. Overstretching due to excessive pressure differentials; 3. Aging and hardening from high-temperature operation.

1. Install a filter upstream to remove solid impurities; 2. Control pressure differentials within 80% of rated limits; 3. Replace every 6-12 months based on operating hours.

2

Diaphragm Stabilizer

107.130.02

Stainless steel (304) for high strength and corrosion resistance

1. Wear from friction with the diaphragm during high-frequency pulsations; 2. Corrosion from incompatible process fluids; 3. Misalignment causing uneven stress distribution.

1. Ensure proper alignment during assembly to avoid eccentricity; 2. Verify fluid compatibility with 304 stainless steel; 3. Inspect for wear marks during diaphragm replacement.

1

Screw

107.130.15 (M33x2-2a)

Alloy steel (40Cr), heat-treated for high tensile strength

1. Over-torquing leading to thread stripping; 2. Corrosion from moisture or chemical exposure; 3. Fatigue failure from repeated pressure-induced vibration.

1. Use a torque wrench to apply specified torque; 2. Apply anti-seize compound to threads in corrosive environments; 3. Retorque after initial 100 hours of operation.

2

Bolt

107.130.05 (1"-8UNC-2A)

High-strength alloy steel (10.9 grade)

1. Shear failure from uneven load distribution; 2. Thread damage from improper installation (cross-threading); 3. Hydrogen embrittlement from improper heat treatment.

1. Ensure aligned holes before installation to avoid cross-threading; 2. Avoid reusing bolts after overload or fatigue; 3. Store in a dry environment to prevent moisture-induced corrosion.

3

Nut

107.132.05 (M48x3-2a)

Alloy steel (45#), heat-treated for wear resistance

1. Thread wear from repeated assembly/disassembly; 2. Loosening due to vibration without lock washers; 3. Deformation from over-torquing.

1. Use lock washers to prevent vibration-induced loosening; 2. Replace nuts if threads are stripped or deformed; 3. Match torque with corresponding bolts to avoid uneven stress.

4

Stud

107.132.06 (M48x3-2a)

Stainless steel (316) for corrosion resistance in harsh media

1. Corrosion from aggressive chemicals or saltwater; 2. Thread galling (seizing) during installation; 3. Fatigue from cyclic pressure loads.

1. Apply anti-galling compound to threads before installation; 2. Avoid over-tightening to prevent thread damage; 3. Inspect for corrosion quarterly in harsh environments.

5

Nut

107.04.110.44 (M33x2-2a)

Carbon steel (Q235) with galvanized coating

1. Zinc coating wear leading to rust; 2. Thread damage from mismatched fasteners; 3. Loosening due to insufficient torque.

1. Ensure compatibility with M33x2-2a studs; 2. Torque to manufacturer’s specifications; 3. Replace if rust affects thread integrity.

6

Stud

107.130.03 (M33x2-2a L=100)

Alloy steel (40CrNiMoA) for high fatigue resistance

1. Fatigue failure from long-term cyclic loading; 2. Corrosion at thread roots; 3. Bending due to misaligned components.

1. Check component alignment before tightening; 2. Conduct magnetic particle inspection annually for fatigue cracks; 3. Use corrosion-resistant coatings in wet environments.

7

Lifting Screw

GB825-88 (M20)

Carbon steel (Q235) with black oxide finish

1. Overloading beyond rated lifting capacity; 2. Thread damage from improper lifting angles; 3. Rust from outdoor storage or wet conditions.

1. Never exceed rated lifting capacity (refer to GB825-88); 2. Ensure vertical lifting to avoid bending stress; 3. Clean and oil threads after use, store in a dry area.

1

Washer

GB93-87 (27)

Stainless steel (304) spring washer for anti-loosening

1. Fatigue failure from repeated compression cycles; 2. Corrosion in humid or chemical environments; 3. Deformation from over-torquing.

1. Replace spring washers after each disassembly; 2. Select compatible materials for corrosive environments; 3. Avoid over-torquing to prevent permanent deformation.

2

Washer

107.130.07

Copper (H62) for good ductility and sealing performance

1. Deformation from excessive pressure; 2. Oxidation leading to reduced sealing ability; 3. Scratching from rough component surfaces.

1. Ensure mating surfaces are smooth and clean; 2. Replace if oxidized or deformed; 3. Use proper torque to avoid crushing the washer.

3

Washer

107.130.09-1

Steel (SPHC) with zinc plating

1. Zinc coating wear causing rust; 2. Wear from friction during vibration; 3. Bending from uneven load distribution.

1. Inspect coating integrity before installation; 2. Ensure proper alignment to distribute load evenly; 3. Replace if rust or bending is detected.

4

Washer

107.130.10-1

Stainless steel (316L) for enhanced corrosion resistance

1. Pitting corrosion from chloride-rich environments; 2. Wear from high-frequency vibration; 3. Damage from improper handling (scratches).

1. Avoid use in chloride concentrations exceeding 50ppm; 2. Handle with care to prevent surface scratches; 3. Replace during scheduled maintenance cycles.

1

Screw Plug

107.130.13 (1/4"-18NPT)

Brass (H59) for good sealing and corrosion resistance

1. Thread damage from over-tightening or cross-threading; 2. Corrosion from chemical media; 3. Sealing failure due to debris on threads.

1. Apply thread sealant before installation; 2. Avoid over-tightening to prevent thread stripping; 3. Clean threads of debris before assembly.

2

Pipe Cap

107.130.06 (G5/8″)

Carbon steel (Q235) with epoxy coating for anti-corrosion

1. Coating damage leading to rust; 2. Leakage from improper sealing; 3. Impact damage causing deformation.

1. Inspect coating for damage before installation; 2. Use a gasket for enhanced sealing; 3. Protect from mechanical impacts during storage and operation.

3

T-joint

107.130.08

Stainless steel (304) for high-pressure and corrosion resistance

1. Stress concentration at joint corners leading to cracking; 2. Corrosion from incompatible fluids; 3. Leakage from loose connections.

1. Ensure all connections are torqued properly; 2. Verify fluid compatibility with 304 stainless steel; 3. Inspect for cracks during routine maintenance.

4

Flange

107.130.16

Carbon steel (A105) for high-temperature and high-pressure applications

1. Sealing surface damage from improper handling; 2. Corrosion leading to leakage; 3. Bolt hole deformation from over-torquing.

1. Protect sealing surfaces from scratches during installation; 2. Use compatible gaskets (e.g., PTFE for chemical service); 3. Torque bolts uniformly in a crisscross pattern.

1

O-ring

D4-4-66 (140x5.7)

Nitrile rubber (NBR) for good oil resistance and elasticity

1. Aging and hardening from high temperatures or long service life; 2. Abrasion from fluid contaminants; 3. Extrusion damage from excessive pressure.

1. Replace O-rings every 6 months or if hardening is detected; 2. Ensure fluid is filtered to remove contaminants; 3. Select O-rings with proper hardness for operating pressure.

1

Pressure Gauge

Y-100

Brass (socket); stainless steel (movement); glass (dial cover)

1. Damage from overpressure (dial or movement failure); 2. Glass breakage from mechanical impact; 3. Internal corrosion from moisture ingress.

1. Select gauges with rated pressure exceeding system max; 2. Install a protective cover to prevent impact; 3. Calibrate annually per GB/T 1226-2017.

2

Cut-off Valve

107.130.03.00

Carbon steel (valve body); stainless steel (valve core); nitrile rubber (seal)

1. Valve core wear from fluid erosion; 2. Sealing failure due to debris buildup; 3. Stem damage from improper operation (forced closing).

1. Operate the valve smoothly, avoid forced opening/closing; 2. Clean the valve periodically to remove debris; 3. Inspect seal integrity and replace if leakage occurs.

1

Main Bearing Retainer Plate

107.130.04

Cast iron (HT200) for high rigidity and wear resistance

1. Wear from friction with bearings during operation; 2. Cracking from uneven pressure or impact; 3. Corrosion from lubricant contamination.

1. Ensure proper lubrication of bearings to reduce friction; 2. Inspect for cracks during bearing replacement; 3. Replace lubricant regularly to prevent contamination.

What is the service life of the FKM diaphragm (107.130.01.00-1) under normal operating conditions?

Under rated pressure (≤1.6MPa) and temperature (≤120℃), with filtered fluid (no solid particles), the service life is 6-12 months. It is recommended to replace it during quarterly maintenance for critical systems.

How to handle leakage at the flange (107.130.16) connection?

First, shut down the system and relieve pressure. Check if the flange sealing surface is scratched or the gasket is damaged. Replace the gasket (PTFE recommended for chemical service) and torque bolts uniformly in a crisscross pattern to the specified value (45N·m for M33 fasteners).

Can the stainless steel 304 components be used in chloride-rich environments?

Stainless steel 304 is susceptible to pitting corrosion in chloride concentrations exceeding 50ppm. For such environments, replace with 316L stainless steel components or apply anti-corrosion coatings to extend service life, complying with ASTM A480 standards.