Mark 50 Series
Self-Operated, Jorlon Diaphragm
The Mark 50 Series handles a broad range of applications including steam, water, oil, gas, air and chemicals. Excellent capacity and the sliding gate trim enables the Mark 50 to quickly and accurately regulate upstream pressure, preventing over-pressure situations.
- Sliding Gate Trim — Unique seat design provides unsurpassed trim life and accuracy
- Fast Response — The short stroke of the sliding gate means fast response to changes in process conditions, resulting in less offset in pressure
- Straight-through Flow — The flow is straight through the valve seats and body. Direction of the disc travel is at right angles with the flow, not opposed to the direction of the flow. Thus the flow does not unbalance the seats
- Quiet Operation — The design of the Sliding Gate seats make them quieter than other types of regulators. The disc and plate are always in contact, which eliminates chattering. Straight-through flow minimizes turbulence
- Minimum Maintenance — The Mark 60 sliding gate seats require no special tools for disassembly. The seats are pre-lapped at the factory and are self-lapping while in operation ensuring a continual tight shutoff
Sizes: 1/4″ – 4″ (DN8 – DN100)
Cv (Kv): up to 200 (up to 172)
Diaphragm: Jorlon, Stainless Steel, Buna-N, Viton
Setpoint: MK50: 0.5 to 150 psi (0,03 to 10,3 bar); MK50HP: 75 to 450 psi (5,2 to 31,0 bar)
Body Material: Ductile Iron, Bronze, Carbon Steel, Stainless Steel, Cast Iron
End Connection: Threaded, Flanged, Socket Weld, Butt Weld
Sliding Gate Infographic
Download this infographic on the benefits of the sliding gate in regulators and control valves.
Benefits of the Sliding Gate
Read on to learn the benefits of owning sliding gate regulators and control valves.
Sliding Gate Valve Overview
Watch this video for an overview of Sliding Gate Pressure Regulators and Control Valves
Sliding Gate Videos
Learn more about the sliding gate seat design by watching these videos.
- EC Declaration of Conformity/PED:
Mark 50: 1-1/4″ – 4″ - CRN (Canadian Registration Number)
Mark 50: 1/4″ – 4″
Mark 50QC: 1/4″ – 2″ - UL Listed
1/4″ Mark 50 Series Carbon & Stainless Steel with FNPT Ends
1/4″ Mark 50 Series Ductile Iron & Bronze with FNPT Ends
3/8″ Mark 50 Series Carbon and Stainless Steel with FNPT Ends
3/8″ Mark 50 Series Ductile Iron & Bronze with FNPT Ends
1/2″ Mark 50 Series Carbon & Stainless Steel with Integral 300# Ends
1/2″ Mark 50 Series Carbon & Stainless Steel with Integral 150# Ends
1/2″ Mark 50 Series Carbon & Stainless Steel with FNPT Ends
1/2″ Mark 50 Series Ductile Iron & Bronze with Welded 300# Flanged Ends
1/2″ Mark 50 Series Ductile Iron & Bronze with Welded 150# Flanged Ends
1/2″ Mark 50 Series Ductile Iron & Bronze with FNPT Ends
3/4″ Mark 50 Series Carbon & Stainless Steel with Integral 300# Flanged Ends
3/4″ Mark 50 Series Carbon & Stainless Steel with Integral 150# Flanged Ends
3/4″ Mark 50 Series Carbon & Stainless Steel with FNPT Ends
3/4″ Mark 50 Series Ductile Iron & Bronze with Welded 300# Flanged Ends
3/4″ Mark 50 Series Ductile Iron & Bronze with Welded 150# Flanged Ends
1/2″ Mark 50 Series Ductile Iron & Bronze with FNPT Ends
1″ Mark 50 Series Carbon & Stainless Steel with Integral 300# Flanged Ends
1″ Mark 50 Series Carbon & Stainless Steel with Integral 150# Flanged Ends
1″ Mark 50 Series Ductile Iron & Bronze with Welded 300# Flanged Ends
1″ Mark 50 Series Ductile Iron & Bronze with Welded 150# Flanged Ends
1″ Mark 50 Series Ductile Iron & Bronze with Welded 300# Flanged Ends
1″ Mark 50 Series Ductile Iron & Bronze with FNPT Ends
1-1/4″ Mark 50 Series Ductile Iron & Bronze with Welded 300# Flanged Ends
1-1/4″ Mark 50 Series Ductile Iron & Bronze with Welded 150# Flanged Ends
1-1/4″ Mark 50 Series Ductile Iron & Bronze with FNPT Ends
1-1/2″ Mark 50 Series Carbon & Stainless Steel with Integral 300# Flanged Ends
1-1/2″ Mark 50 Series Carbon & Stainless Steel with Integral 150# Flanged Ends
1-1/2″ Mark 50 Series Carbon & Stainless Steel with FNPT Ends
1-1/2″ Mark 50 Series Ductile Iron & Bronze with Welded 300# Flanged Ends
1-1/2″ Mark 50 Series Ductile Iron & Bronze with Welded 150# Flanged Ends
1-1/2″ Mark 50 Series Ductile Iron & Bronze with FNPT Ends
2″ Mark 50 Series Carbon & Stainless Steel with Integral 300# Flanged Ends
2″ Mark 50 Series Carbon & Stainless Steel with Integral 150# Flanged Ends
2″ Mark 50 Series Carbon & Stainless Steel with FNPT Ends
2″ Mark 50 Series Ductile Iron & Bronze with Welded 300# Flanged Ends
2″ Mark 50 Series Ductile Iron & Bronze with Welded 150# Flanged Ends
2″ Mark 50 Series Ductile Iron & Bronze with FNPT Ends
2-1/2″ Mark 50 Series All Materials with Integral 300# Flanged Ends
2-1/2″ Mark 50 Series All Materials with Intergral 150# Flanged Ends
3″ Mark 50 Series All Materials with Integral 300# Flanged Ends
3″ Mark 50 Series All Materials with Integral 150# Flanged Ends
4″ Mark 50 Series All Materials with Integral 300# Flanged Ends
4″ Mark 50 Series All Materials with Integral 150# Flanged Ends
The Mark 50 are available for Next Business Day shipment.
Mark 50 Details:
Sizes: 1/2″- 2″
SST/Jorlon diaphragm, Standard Cv and 1 reduction, FNPT end connection, HP option 2″ and under, 150# ANSI Flange for CS or SST bodies. DIN flanges for CS or SST bodies (DN25 to DN50).
Some exclusions may apply.
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