Products using the Modular Reed Valve technology as well as compressor valve related products available from Zahroof Vavles Inc.

1. StraightFlo Compressor Valves
Design, Application, Field Experience
Exceeding Expectations
Zahroof Mohamed

2. Zahroof Valves Inc. (ZVI)
ZVI Designs, manufactures and markets the StraightFloTM valve
Patented, drop-in replacement compressor valve
• 1.5”to 14+” diameter. Brand agnostic.
• 250 rpm to 3600+ rpm, 4350 psi DP max, -300 to 450F temperature
• Industry leading 10 year warranty on stainless steel housing
• Module warranty – 5 years slow speed pipeline, 2 years – downstream
Value Proposition
• Improves reliability (service interval) by ~ 2x – 10x. 100% guaranteed.
• Reduces compressor power by 3 – 15% (Green Technology/Emissions).
• Increases throughput by 3 -15% where engine is maxed out.
• Simplifies service, 5-10 minutes/valve onsite, no machining. TCO
• Reduces inventory by ~80%
• Enables valve rental/lease programs.
Applications/Markets (Onshore, offshore, contract, OEM)
• Natural gas (production, gathering, transmission, storage/injection &
distribution) shale gas, acid gas, Coal gas, CNG
• Refinery, petrochemical, Industrial gas, PET, Air, Refrigeration
• CO2 – CSS, EOR
• Multi-phase compression (wet gas, LNG, Ammonia)
Zahroof Valves Inc; +1 (713) 554-2678(O); Support@zahroofvalves.com; www.zahroofvalves.com
Straightflo ValveTM
Customer Installations & Orders

3. Modular Reed Valve Product Innovation
redefining the compressor valve3
ZVI Dynamic Simulation Program
200
300
400
500
600
700
0 30 60 90 120 150 180 210 240 270 300 330 360
Pressure(psi)
Angle (Deg)
Plot of Cylinder Pressure vs Angle
MRV
HE
CE
200
300
400
500
600
700
100 200 300 400 500 600 700 800 900 1000 1100 1200
Pressure(psia)
Volume (in^3)
Plot of Cylinder Pressures vs Volume
HE
CE
0
0.05
0.1
0.15
0.2
0 30 60 90 120 150 180 210 240 270 300 330 360
ValveLift(in)
Angle (Deg)
Plot of Valve Lift vs. Angle
Suction HE
Disch HE
Suction CE
Disch CE
-40000
-30000
-20000
-10000
0
10000
20000
30000
40000
50000
0 30 60 90 120 150 180 210 240 270 300 330 360
Force(lbf)
Angle (Deg)
Plot of Forces vs. Angle
Gas Force
Inertia Force
Rod Load
Modules
Standard modules: 4350 psi DP,
-300F - 450F
SST module: >5000 psi DP,
-300F – 600F
Standard Valves

4. Modular Reed Valve Product Innovation
redefining the compressor valve4
Machined Bolt-On Cages Integral Cage Valves Valve Protection Mesh

5. Modular Reed Valve Product Innovation
redefining the compressor valve5
Stacked Valve HiFlo Valve HiFlo
Area ratio = effective area/valve
port area
GE valve == 10%
192CT valve = 15.7%
StraightFlo Valve vs. 192CT valve
Standard = 25.3% (61% better)
Stacked valve = 28.2% (80% better)
HiFlo = 37% (138% better)

6. Modular Reed Valve Product Innovation
redefining the compressor valve6
Unloader - Hollow Piston Unloader - Poppet
Open /
Unloaded
Piston is at top dead
center. Gas passes
from cylinder through
piston to the suction
port.
Closed / Loaded
Piston is at bottom
position. The piston
blocks the passage of
gas.
Reliable Capacity Control

7. Modular Reed Valve Product Innovation
redefining the compressor valve7
Concentric ValvePlug Unloader Engine Scavenger Valve

8. Modular Reed Valve Product Innovation
redefining the compressor valve8
Conversion – Jack-Bolt to Integral
Valve Cap-Cage Valve
Conversion – Integration of
cage and seal to valve body
Conversion – Open Guard
to Fully Retained

9. THANK YOU
Zahroof Valves Inc.
8535-N Jackrabbit Road
Houston, TX 77095
Zahroof Valves Inc; +1 (713) 554-2678(O); Support@zahroofvalves.com; www.zahroofvalves.com