TLV SP-COSR-16 is a pilot-operated surplussing valve designed to rapidly and accurately release excess pressure from steam equipment. It functions as a self-actuated primary pressure control valve and is ideal for controlling the pressure of flash steam recovery systems.

Features

• Self-aligning and shock-absorbing spherical piston ensures high accuracy of control.
• Proportional Regulation with very small P-Offset.
• Pilot valve protected by fine mesh screen.
• Internal pressure sensing channel makes external sensing line unnecessary.
• Wide pressure setting range with one adjustment spring.
• Major internal components made of stainless steel.

Specifications

Specification	Value
Model	SP-COSR-16
Connection	Flanged
Size	DN 15, 20, 25, 32, 40, 50
Body Material	Ductile Cast Iron (GGG40.3)
Maximum Operating Pressure (PMO)	16 barg
Maximum Operating Temperature (TMO)	220 °C
Minimum Adjustable Flow Rate	5% of Rated Flow Rate
Pressure Setting Range	1-10 barg
Valve Seat Leak Rate	Less than 0.05% of Rated Flow Rate
Shutoff Pressure	max. 0.2 barg
Offset	max. 0.3 bar

PRESSURE SHELL DESIGN CONDITIONS

(NOT OPERATING CONDITIONS): Maximum Allowable Pressure (PMA): 21 barg Maximum Allowable Temperature (TMA): 220 °C

To avoid abnormal operation, accidents or serious injury, DO NOT use this product outside of the specification range. Local regulations may restrict the use of this product to below the conditions quoted.

Flow Characteristics

Dimensions

SP-COSR-16 Flanged

DN	L (DIN 2501 PN25/40)	H	H1	W	Weight (kg)
15	130	392	320	93	10
20	150	392	320	93	11
25	160	392	317	93	13
32	180	427	337	126	19
40	200	427	337	126	20
50	230	447	350	157	27

(Other standards available, but length and weight may vary)

Sizing Charts & Example

Sizing Example: For back pressure of 2.5 barg, set pressure of 6 barg and saturated steam flow rate of 200 kg/h, select an appropriate size.

Locate intersecting point A of 6 barg and 2.5 barg in the upper graph and go down until 200 kg/h, point B in the lower graph is reached. Since point B is located between DN 20 and DN 25, the larger size, DN 25 should be chosen.