R70 Series medium and large-sized pressure regulators

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R70 Series medium and large-sized pressure regulators

The R70 is designed to fill the gap between conventional medium-sized pressure regulators and ultra-high flow rate devices. Equipped with a larger 2-1/2" pressure gauge, it offers clearer readings and features an internal valve port designed for improved flow characteristics. As a single-stage design, it enhances pressure feedback sensitivity at high flow rates by increasing the effective pressure-sensing area of ​​the diaphragm, making it suitable for medium to large-scale gas distribution systems. Its scientifically proportioned 1.4kg weight allows for an inlet pressure up to 15MPa, supporting a wide range of common media such as oxygen, nitrogen, hydrogen, and air. It serves as an ideal transition point for supplying gas from the main gas line to branch lines in a factory. In applications requiring simultaneous supply to multiple workstations, the R70's ample capacity ensures that the pressure at each terminal does not interfere with each other.

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Model Number

Gas Service

Max. inlet Pressure(MPa)

Deler Pressure(MPa)

Inlet gauge(MPa)

Ouet Gauge(MPa)

Inlet Connection

Outlet connection

R70X-80

OXYGEN

15 

0.02~0.56

25 

G5/8'-RH(F)

M16-1.5RH(M)

R70X-175

15 

0.03~1.2

25 

2.5 

G5/8'-RH(F)

M16-1.5RH(M)

R70Y-15

ACETYLENE

0.01~0.1

0.25 

Bottle rack

M16-1.5LH(M)

R70F-40

LPG

0.01-0.28

0.4 

M22-1.5LH(M)

M16-1.5LH(M)

R70F-80

0.02~0.56

M22-1.5LH(M)

M16-1.5LH(M)

R70F-125

0.03~0.85

1.6 

M22-1.5LH(M)

M16-1.5LH(M)

R70IN-80

Ar、He、N₂

15 

0.02-0.56

25 

G5/8'-RH(F)

M16-1.5RH(M)

R70IN-175

15 

0.01~1.2

25 

2.5 

G5/8'-RH(F)

M16-1.5RH(M)

R70IN-175

15 

0.01-2.0

25 

G5/8'-RH(F)

M16-1.5RH(M)

R70IN-300

15 

0.01~3.0

25 

G5/8'-RH(F)

M16-1.5RH(M)

R70Q-80

AIR

15 

0.01-0.56

25 

G5/8'-RH(F)

M16-1.5RH(M)

About Us
Ningbo Keshengli Stainless Steel Valve Co., Ltd.
Ningbo Keshengli Stainless Steel Valve Co., Ltd.

Our company specializes in the manufacturing and sales of stainless steel pipe fittings and valves in national (GB), American (ANSI/ASME), and British (BS) standards. We are equipped with advanced CNC machining centers, material testing and heat treatment facilities, a skilled technical team, and a robust production workforce. With a sound quality management system and excellent after-sales service, we sincerely serve customers worldwide.

Our main products include: ferrule-type fittings, threaded fittings, instrument fittings, instrument needle valves, instrument ball valves, ferrule needle valves, ferrule ball valves, compact high-pressure instrument needle valves, compact high-pressure instrument ball valves, and high-pressure check valves. The primary material is SS316 stainless steel. These products are widely used in petrochemical, petroleum, electric power, pharmaceutical, food, papermaking, marine, and general machinery industries.

We strictly control product quality at every stage and are committed to delivering superior quality through advanced technology and professional management. Adhering to the business philosophy of "Quality First, Customer Supreme, Integrity Foremost," we strive to build the "NB-KSL" brand image, better serve our customers, and work together with you to create a prosperous future.

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