SR3 Series stainless steel large flow pressure regulator

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SR3 Series stainless steel large flow pressure regulator

The SR3 is the "powerhouse" contender in the SR series, featuring upgraded inlet and outlet ports of 3/4" NPT(F) and a high CV value of 1.8, specifically developed for large-scale industrial gas distribution systems. Despite its significantly enhanced flow capacity, it retains the high precision of its single-stage diaphragm design. The stainless steel diaphragm accurately converts complex inlet pressures into a constant output flow, making it suitable for large-area purging of pure gases or petrochemical production lines. Its heavy-duty 2.7kg body is equipped with a dedicated safety valve port, combined with a Hastelloy diaphragm, giving it industry-leading durability when handling large flows of corrosive gases.

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Series

Body Pots

Inlet Pressure

Outlet Pressure

Gauge

Inlet connector

Outlet Connector

Options

SR3

B

E

H

G

05 

05 

P

SR3L

(316L)

SR3B

(Copper electroplating)

A

B

G

J

M

D:3000psi

F:500psi

H:0-125psi

J:0-75psi

L:0-25psi

M:0-15psi

Q:30"HgVao-30psi

S:30"HgVac-60psi

T:30"HgVac-100psi

G: MPa table

P: Psi/bar table

W: No pressure gauge

04:1/2"NPT(F)

05:1/2NPT(M)

06:3/4NPT(F)

13: 1/2 "card sleeve connector

14: 3/4 "card sleeve connector

Other forms of connectors are available for selection

04:1/2"NPT(F)

05:1/2NPT(M)

06:3/4NPT(F)

13: 1/2 "card sleeve connector

14: 3/4 "card sleeve connector

Other forms of connectors are available for selection

P: Panel installation

R: Safety valve

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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News
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